DUSHYANT VISWANATHAN M.D.
Prescription History 1285897421
Internal Medicine in Woodland Hills, CA
What does Dr. Viswanathan prescribe?
In 2024, Dr. Viswanathan wrote 5,577 Medicare prescriptions for 133 medications. The most prescribed was Atorvastatin Calcium, with 313 prescriptions for 100 patients.
Medicare Part D only. These are prescriptions filled by people with Medicare drug coverage in 2024, from the CMS data released in 2026, the most recent year available. CMS does not publish medications with fewer than 11 prescriptions, so this is not a full list of what Dr. Viswanathan prescribes.
Medications 133 medications
Prescriptions filled under Medicare Part D in 2024. Select a medication to see what it is used for and how it compares with other California prescribers.
What it is used for
Atorvastatin is used along with a proper diet to help lower "bad" cholesterol and fats (such as LDL, triglycerides) and raise "good" cholesterol (HDL) in the blood.
Compared with California prescribers
Dr. Viswanathan wrote 313 prescriptions for Atorvastatin Calcium, about 1.5 times as often as the typical California prescriber of it (202). Medicare paid $8.73 per fill, versus $10.47 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Levothyroxine is used to treat an underactive thyroid (hypothyroidism).
Compared with California prescribers
Dr. Viswanathan wrote 240 prescriptions for Levothyroxine Sodium, about 1.9 times as often as the typical California prescriber of it (125). Medicare paid $11.50 per fill, versus $13.30 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with California prescribers
Dr. Viswanathan wrote 224 prescriptions for Metformin Hcl, about 2.2 times as often as the typical California prescriber of it (100). Medicare paid $9.56 per fill, versus $9.26 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Pantoprazole is used to treat certain stomach and esophagus problems (such as acid reflux).
Compared with California prescribers
Dr. Viswanathan wrote 183 prescriptions for Pantoprazole Sodium, about 2.8 times as often as the typical California prescriber of it (65). Medicare paid $9.64 per fill, versus $13.87 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Amlodipine is used with or without other medications to treat high blood pressure.
Compared with California prescribers
Dr. Viswanathan wrote 165 prescriptions for Amlodipine Besylate, about 1.2 times as often as the typical California prescriber of it (141). Medicare paid $5.09 per fill, versus $7.08 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Tamsulosin is used by men to treat the symptoms of an enlarged prostate (benign prostatic hyperplasia-BPH).
Compared with California prescribers
Dr. Viswanathan wrote 162 prescriptions for Tamsulosin Hcl, about 1.9 times as often as the typical California prescriber of it (84). Medicare paid $10.58 per fill, versus $15.02 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This combination medication is used to relieve moderate to severe pain.
Compared with California prescribers
Dr. Viswanathan wrote 158 prescriptions for Hydrocodone-Acetaminophen, about 2.1 times as often as the typical California prescriber of it (76). Medicare paid $33.21 per fill, versus $21.39 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Apixaban is used to prevent serious blood clots from forming due to a certain irregular heartbeat (atrial fibrillation) or after hip/knee replacement surgery.
Compared with California prescribers
Dr. Viswanathan wrote 140 prescriptions for Eliquis, about 1.9 times as often as the typical California prescriber of it (73). Medicare paid $582.49 per fill, versus $923.33 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Albuterol (also known as salbutamol) is used to prevent and treat wheezing and shortness of breath caused by breathing problems (such as asthma, chronic obstructive pulmonary disease).
Compared with California prescribers
Dr. Viswanathan wrote 128 prescriptions for Albuterol Sulfate Hfa, about 2.2 times as often as the typical California prescriber of it (58). Medicare paid $27.96 per fill, versus $28.70 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Furosemide is used to reduce extra fluid in the body (edema) caused by conditions such as heart failure, liver disease, and kidney disease.
Compared with California prescribers
Dr. Viswanathan wrote 116 prescriptions for Furosemide, about 1.8 times as often as the typical California prescriber of it (64). Medicare paid $3.35 per fill, versus $6.39 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Gabapentin is used with other medications to prevent and control seizures.
Compared with California prescribers
Dr. Viswanathan wrote 115 prescriptions for Gabapentin, about 1.4 times as often as the typical California prescriber of it (80). Medicare paid $14.32 per fill, versus $15.63 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Losartan is used to treat high blood pressure (hypertension) and to help protect the kidneys from damage due to diabetes.
Compared with California prescribers
Dr. Viswanathan wrote 109 prescriptions for Losartan Potassium, about as often as the typical California prescriber of it (121). Medicare paid $8.47 per fill, versus $10.35 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Omeprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers).
Compared with California prescribers
Dr. Viswanathan wrote 100 prescriptions for Omeprazole, about 1.3 times as often as the typical California prescriber of it (78). Medicare paid $9.49 per fill, versus $11.26 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Finasteride is used to shrink an enlarged prostate (benign prostatic hyperplasia or BPH) in adult men.
Compared with California prescribers
Dr. Viswanathan wrote 92 prescriptions for Finasteride, about 1.6 times as often as the typical California prescriber of it (56). Medicare paid $8.05 per fill, versus $13.71 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Lisinopril is used to treat high blood pressure.
Compared with California prescribers
Dr. Viswanathan wrote 91 prescriptions for Lisinopril, about as often as the typical California prescriber of it (98). Medicare paid $9.60 per fill, versus $8.30 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is a beta-blocker used to treat chest pain (angina), heart failure, and high blood pressure.
Compared with California prescribers
Dr. Viswanathan wrote 91 prescriptions for Metoprolol Succinate, about as often as the typical California prescriber of it (86). Medicare paid $13.51 per fill, versus $14.23 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Carvedilol is used to treat high blood pressure and heart failure.
Compared with California prescribers
Dr. Viswanathan wrote 79 prescriptions for Carvedilol, about 1.4 times as often as the typical California prescriber of it (56). Medicare paid $8.58 per fill, versus $8.98 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat high blood pressure.
Compared with California prescribers
Dr. Viswanathan wrote 77 prescriptions for Hydrochlorothiazide, about 1.2 times as often as the typical California prescriber of it (62). Medicare paid $2.83 per fill, versus $5.71 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is a mineral supplement used to treat or prevent low amounts of potassium in the blood.
Compared with California prescribers
Dr. Viswanathan wrote 75 prescriptions for Potassium Chloride, about 1.6 times as often as the typical California prescriber of it (48). Medicare paid $12.65 per fill, versus $24.00 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat anxiety.
Compared with California prescribers
Dr. Viswanathan wrote 72 prescriptions for Lorazepam, about 1.7 times as often as the typical California prescriber of it (43). Medicare paid $4.86 per fill, versus $6.52 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Empagliflozin is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with California prescribers
Dr. Viswanathan wrote 71 prescriptions for Jardiance, about 1.2 times as often as the typical California prescriber of it (58). Medicare paid $940.72 per fill, versus $933.82 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Famotidine is used to treat ulcers of the stomach and intestines and to prevent intestinal ulcers from coming back after they have healed.
Compared with California prescribers
Dr. Viswanathan wrote 59 prescriptions for Famotidine, about as often as the typical California prescriber of it (54). Medicare paid $11.96 per fill, versus $12.66 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This combination medication is used to help relieve moderate to severe pain.
Compared with California prescribers
Dr. Viswanathan wrote 59 prescriptions for Oxycodone-Acetaminophen, about 1.2 times as often as the typical California prescriber of it (50). Medicare paid $40.83 per fill, versus $29.84 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Semaglutide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with California prescribers
Dr. Viswanathan wrote 58 prescriptions for Ozempic, about as often as the typical California prescriber of it (56). Medicare paid $1,051.39 per fill, versus $1,102.15 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This product is used to control and prevent symptoms (such as wheezing and shortness of breath) caused by asthma and ongoing lung disease (chronic obstructive pulmonary disease-COPD, which includes chronic bronchitis and emphysema).
Compared with California prescribers
Dr. Viswanathan wrote 56 prescriptions for Trelegy Ellipta, about as often as the typical California prescriber of it (57). Medicare paid $642.06 per fill, versus $801.62 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used alone or with other medications to treat high blood pressure (hypertension).
Compared with California prescribers
Dr. Viswanathan wrote 55 prescriptions for Clonidine Hcl, about 1.6 times as often as the typical California prescriber of it (35). Medicare paid $5.07 per fill, versus $6.25 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
See also Warning section.
Compared with California prescribers
Dr. Viswanathan wrote 52 prescriptions for Tramadol Hcl, about 1.2 times as often as the typical California prescriber of it (44). Medicare paid $4.17 per fill, versus $6.24 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Glipizide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with California prescribers
Dr. Viswanathan wrote 50 prescriptions for Glipizide, about as often as the typical California prescriber of it (49). Medicare paid $8.18 per fill, versus $10.86 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Hydralazine is used with or without other medications to treat high blood pressure.
Compared with California prescribers
Dr. Viswanathan wrote 50 prescriptions for Hydralazine Hcl, about 1.2 times as often as the typical California prescriber of it (43). Medicare paid $19.29 per fill, versus $14.35 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Rosuvastatin is used along with a proper diet to help lower "bad" cholesterol and fats (such as LDL, triglycerides) and raise "good" cholesterol (HDL) in the blood.
Compared with California prescribers
Dr. Viswanathan wrote 50 prescriptions for Rosuvastatin Calcium, about half as often as the typical California prescriber of it (101). Medicare paid $11.96 per fill, versus $15.64 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with California prescribers
Dr. Viswanathan wrote 50 prescriptions for Trazodone Hcl, about 88% as often as the typical California prescriber of it (57). Medicare paid $13.03 per fill, versus $9.93 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Insulin glargine is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with California prescribers
Dr. Viswanathan wrote 47 prescriptions for Lantus Solostar, about 1.3 times as often as the typical California prescriber of it (36). Medicare paid $91.18 per fill, versus $110.37 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Alprazolam is used to treat anxiety and panic disorders.
Compared with California prescribers
Dr. Viswanathan wrote 46 prescriptions for Alprazolam, about as often as the typical California prescriber of it (50). Medicare paid $5.17 per fill, versus $5.37 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Montelukast is used to control and prevent symptoms caused by asthma (such as wheezing and shortness of breath).
Compared with California prescribers
Dr. Viswanathan wrote 45 prescriptions for Montelukast Sodium, about as often as the typical California prescriber of it (49). Medicare paid $8.81 per fill, versus $10.71 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Compared with California prescribers
Dr. Viswanathan wrote 44 prescriptions for Alcohol Prep Pads, about 1.2 times as often as the typical California prescriber of it (38). Medicare paid $56.43 per fill, versus $24.91 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Alendronate is used to prevent and treat certain types of bone loss (osteoporosis) in adults.
Compared with California prescribers
Dr. Viswanathan wrote 43 prescriptions for Alendronate Sodium, about 71% as often as the typical California prescriber of it (61). Medicare paid $6.96 per fill, versus $9.65 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Sitagliptin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with California prescribers
Dr. Viswanathan wrote 43 prescriptions for Januvia, about as often as the typical California prescriber of it (41). Medicare paid $584.20 per fill, versus $915.30 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Nifedipine is used alone or in combination with other drugs to treat high blood pressure (hypertension).
Compared with California prescribers
Dr. Viswanathan wrote 43 prescriptions for Nifedipine Er, about 1.4 times as often as the typical California prescriber of it (32). Medicare paid $35.67 per fill, versus $28.64 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Metoprolol is used with or without other medications to treat high blood pressure (hypertension).
Compared with California prescribers
Dr. Viswanathan wrote 42 prescriptions for Metoprolol Tartrate, about 74% as often as the typical California prescriber of it (57). Medicare paid $3.80 per fill, versus $7.82 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Compared with California prescribers
Dr. Viswanathan wrote 41 prescriptions for Comfort Ez Pen Needle, about 1.8 times as often as the typical California prescriber of it (23). Medicare paid $95.66 per fill, versus $96.96 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Spironolactone is used to treat high blood pressure and heart failure.
Compared with California prescribers
Dr. Viswanathan wrote 40 prescriptions for Spironolactone, about as often as the typical California prescriber of it (37). Medicare paid $5.61 per fill, versus $10.05 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Simvastatin is used along with a proper diet to help lower "bad" cholesterol and fats (such as LDL, triglycerides) and raise "good" cholesterol (HDL) in the blood.
Compared with California prescribers
Dr. Viswanathan wrote 39 prescriptions for Simvastatin, about 62% as often as the typical California prescriber of it (63). Medicare paid $5.28 per fill, versus $9.03 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Donepezil is used to treat confusion (dementia) related to Alzheimer's disease.
Compared with California prescribers
Dr. Viswanathan wrote 37 prescriptions for Donepezil Hcl, about 63% as often as the typical California prescriber of it (58). Medicare paid $8.45 per fill, versus $12.53 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Clopidogrel is used to prevent heart attacks and strokes in persons with heart disease (recent heart attack), recent stroke, or blood circulation disease (peripheral vascular disease).
Compared with California prescribers
Dr. Viswanathan wrote 35 prescriptions for Clopidogrel, about 72% as often as the typical California prescriber of it (48). Medicare paid $8.87 per fill, versus $12.42 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Fluconazole is used to treat vaginal yeast infections.
Compared with California prescribers
Dr. Viswanathan wrote 35 prescriptions for Fluconazole, about 1.7 times as often as the typical California prescriber of it (21). Medicare paid $26.88 per fill, versus $17.16 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Memantine is used to treat moderate to severe confusion (dementia) related to Alzheimer's disease.
Compared with California prescribers
Dr. Viswanathan wrote 33 prescriptions for Memantine Hcl, about half as often as the typical California prescriber of it (56). Medicare paid $17.08 per fill, versus $29.89 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with California prescribers
Dr. Viswanathan wrote 33 prescriptions for Mirtazapine, about 82% as often as the typical California prescriber of it (40). Medicare paid $11.34 per fill, versus $19.05 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as schizophrenia, bipolar disorder, sudden episodes of mania or depression associated with bipolar disorder).
Compared with California prescribers
Dr. Viswanathan wrote 33 prescriptions for Quetiapine Fumarate, about 60% as often as the typical California prescriber of it (55). Medicare paid $17.78 per fill, versus $19.69 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Valsartan is used to treat high blood pressure and heart failure.
Compared with California prescribers
Dr. Viswanathan wrote 33 prescriptions for Valsartan, about 85% as often as the typical California prescriber of it (39). Medicare paid $18.90 per fill, versus $28.57 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Fluticasone is used to relieve seasonal and year-round allergic and non-allergic nasal symptoms, such as stuffy/runny nose, itching, and sneezing.
Compared with California prescribers
Dr. Viswanathan wrote 32 prescriptions for Fluticasone Propionate, about 64% as often as the typical California prescriber of it (50). Medicare paid $14.13 per fill, versus $15.10 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Levetiracetam is used to treat seizures (epilepsy).
Compared with California prescribers
Dr. Viswanathan wrote 32 prescriptions for Levetiracetam, about 69% as often as the typical California prescriber of it (47). Medicare paid $33.30 per fill, versus $37.33 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to help relieve moderate to severe pain.
Compared with California prescribers
Dr. Viswanathan wrote 32 prescriptions for Oxycodone Hcl, about 74% as often as the typical California prescriber of it (43). Medicare paid $26.58 per fill, versus $16.05 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Insulin glargine is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with California prescribers
Dr. Viswanathan wrote 31 prescriptions for Basaglar Kwikpen U-100, about as often as the typical California prescriber of it (30). Medicare paid $500.68 per fill, versus $331.31 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat a variety of skin conditions (such as insect bites, poison oak/ivy, eczema, dermatitis, allergies, rash, itching of the outer female genitals, anal itching).
Compared with California prescribers
Dr. Viswanathan wrote 31 prescriptions for Hydrocortisone, about as often as the typical California prescriber of it (29). Medicare paid $1,643.80 per fill, versus $20.54 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Atenolol is used with or without other medications to treat high blood pressure (hypertension).
Compared with California prescribers
Dr. Viswanathan wrote 29 prescriptions for Atenolol, about half as often as the typical California prescriber of it (50). Medicare paid $10.37 per fill, versus $9.20 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Cyclosporine eye drops are used to treat a certain type of dry eyes.
Compared with California prescribers
Dr. Viswanathan wrote 29 prescriptions for Cyclosporine, about half as often as the typical California prescriber of it (64). Medicare paid $381.42 per fill, versus $344.54 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Diflorasone is used to treat a variety of skin conditions (such as eczema, dermatitis, allergies, rash).
Compared with California prescribers
Dr. Viswanathan wrote 29 prescriptions for Diflorasone Diacetate, about half as often as the typical California prescriber of it (60). Medicare paid $597.18 per fill, versus $662.38 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, anxiety).
Compared with California prescribers
Dr. Viswanathan wrote 29 prescriptions for Escitalopram Oxalate, about 61% as often as the typical California prescriber of it (48). Medicare paid $14.07 per fill, versus $11.14 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Insulin lispro is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with California prescribers
Dr. Viswanathan wrote 28 prescriptions for Humalog Kwikpen U-100, about as often as the typical California prescriber of it (30). Medicare paid $275.93 per fill, versus $231.67 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Latanoprost is used to treat high pressure inside the eye due to glaucoma (open angle type) or other eye diseases (such as ocular hypertension).
Compared with California prescribers
Dr. Viswanathan wrote 28 prescriptions for Latanoprost, about 18% as often as the typical California prescriber of it (159). Medicare paid $14.66 per fill, versus $12.02 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with California prescribers
Dr. Viswanathan wrote 25 prescriptions for Metformin Hcl Er, about half as often as the typical California prescriber of it (55). Medicare paid $8.67 per fill, versus $9.99 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat pain caused by nerve damage due to diabetes, shingles (herpes zoster) infection, or spinal cord injury.
Compared with California prescribers
Dr. Viswanathan wrote 25 prescriptions for Pregabalin, about 64% as often as the typical California prescriber of it (39). Medicare paid $15.85 per fill, versus $24.98 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Progesterone is a type of hormone (progestin).
Compared with California prescribers
Dr. Viswanathan wrote 25 prescriptions for Progesterone, about 78% as often as the typical California prescriber of it (32). Medicare paid $61.80 per fill, versus $38.00 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Glimepiride is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with California prescribers
Dr. Viswanathan wrote 24 prescriptions for Glimepiride, about half as often as the typical California prescriber of it (40). Medicare paid $3.42 per fill, versus $9.24 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to help relieve severe ongoing pain (such as due to cancer).
Compared with California prescribers
Dr. Viswanathan wrote 24 prescriptions for Morphine Sulfate Er, about 62% as often as the typical California prescriber of it (39). Medicare paid $19.26 per fill, versus $33.95 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used alone or with other medications to prevent nausea and vomiting caused by cancer drug treatment (chemotherapy) and radiation therapy.
Compared with California prescribers
Dr. Viswanathan wrote 23 prescriptions for Ondansetron Odt, about as often as the typical California prescriber of it (25). Medicare paid $28.30 per fill, versus $13.40 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat a variety of skin conditions (such as eczema, dermatitis, allergies, rash).
Compared with California prescribers
Dr. Viswanathan wrote 23 prescriptions for Triamcinolone Acetonide, about half as often as the typical California prescriber of it (43). Medicare paid $5.43 per fill, versus $10.03 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat open-angle glaucoma or high fluid pressure in the eye.
Compared with California prescribers
Dr. Viswanathan wrote 22 prescriptions for Brimonidine Tartrate, about 25% as often as the typical California prescriber of it (89). Medicare paid $23.68 per fill, versus $42.08 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Dapagliflozin is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with California prescribers
Dr. Viswanathan wrote 22 prescriptions for Farxiga, about half as often as the typical California prescriber of it (52). Medicare paid $579.28 per fill, versus $914.82 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, panic attacks, obsessive compulsive disorder).
Compared with California prescribers
Dr. Viswanathan wrote 22 prescriptions for Fluoxetine Hcl, about 66% as often as the typical California prescriber of it (33). Medicare paid $6.34 per fill, versus $11.85 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
See also Warning section.
Compared with California prescribers
Dr. Viswanathan wrote 22 prescriptions for Linzess, about half as often as the typical California prescriber of it (49). Medicare paid $551.99 per fill, versus $699.60 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Tirzepatide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with California prescribers
Dr. Viswanathan wrote 22 prescriptions for Mounjaro, about half as often as the typical California prescriber of it (45). Medicare paid $1,371.67 per fill, versus $1,191.18 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This product is used to control and prevent symptoms (wheezing and shortness of breath) caused by asthma or ongoing lung disease (chronic obstructive pulmonary disease-COPD, which includes chronic bronchitis and emphysema).
Compared with California prescribers
Dr. Viswanathan wrote 21 prescriptions for Fluticasone-Salmeterol, about 88% as often as the typical California prescriber of it (24). Medicare paid $125.22 per fill, versus $155.85 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Glipizide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with California prescribers
Dr. Viswanathan wrote 21 prescriptions for Glipizide Er, about 70% as often as the typical California prescriber of it (30). Medicare paid $4.01 per fill, versus $17.99 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Ibuprofen is used to relieve pain from various conditions such as headache, dental pain, menstrual cramps, muscle aches, or arthritis.
Compared with California prescribers
Dr. Viswanathan wrote 21 prescriptions for Ibuprofen, about half as often as the typical California prescriber of it (42). Medicare paid $11.59 per fill, versus $6.71 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Rivaroxaban is used to prevent blood clots from forming due to a certain irregular heartbeat (atrial fibrillation) or after hip or knee replacement surgery.
Compared with California prescribers
Dr. Viswanathan wrote 21 prescriptions for Xarelto, about half as often as the typical California prescriber of it (43). Medicare paid $577.58 per fill, versus $952.66 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Allopurinol is used to treat gout and certain types of kidney stones.
Compared with California prescribers
Dr. Viswanathan wrote 20 prescriptions for Allopurinol, about half as often as the typical California prescriber of it (44). Medicare paid $12.00 per fill, versus $10.39 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Cyclobenzaprine is used short-term to treat muscle spasms.
Compared with California prescribers
Dr. Viswanathan wrote 20 prescriptions for Cyclobenzaprine Hcl, about 62% as often as the typical California prescriber of it (32). Medicare paid $7.06 per fill, versus $8.89 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Hydroxyzine is used to treat itching caused by allergies.
Compared with California prescribers
Dr. Viswanathan wrote 20 prescriptions for Hydroxyzine Hcl, about 71% as often as the typical California prescriber of it (28). Medicare paid $8.21 per fill, versus $13.85 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used alone or with other medications to prevent nausea and vomiting caused by cancer drug treatment (chemotherapy) and radiation therapy.
Compared with California prescribers
Dr. Viswanathan wrote 20 prescriptions for Ondansetron Hcl, about 72% as often as the typical California prescriber of it (28). Medicare paid $11.14 per fill, versus $14.67 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used alone or with other medications to treat Parkinson's disease.
Compared with California prescribers
Dr. Viswanathan wrote 20 prescriptions for Ropinirole Hcl, about 75% as often as the typical California prescriber of it (27). Medicare paid $5.13 per fill, versus $15.64 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Semaglutide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with California prescribers
Dr. Viswanathan wrote 20 prescriptions for Rybelsus, about 63% as often as the typical California prescriber of it (32). Medicare paid $1,226.69 per fill, versus $1,419.22 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Clonazepam is used to prevent and control seizures.
Compared with California prescribers
Dr. Viswanathan wrote 19 prescriptions for Clonazepam, about half as often as the typical California prescriber of it (40). Medicare paid $6.75 per fill, versus $7.09 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
See also Warning section.
Compared with California prescribers
Dr. Viswanathan wrote 19 prescriptions for Naproxen, about 65% as often as the typical California prescriber of it (29). Medicare paid $12.88 per fill, versus $9.70 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as schizophrenia, bipolar disorder).
Compared with California prescribers
Dr. Viswanathan wrote 19 prescriptions for Olanzapine, about 37% as often as the typical California prescriber of it (52). Medicare paid $14.58 per fill, versus $24.98 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Benazepril is used to treat high blood pressure (hypertension).
Compared with California prescribers
Dr. Viswanathan wrote 18 prescriptions for Benazepril Hcl, about half as often as the typical California prescriber of it (35). Medicare paid $3.09 per fill, versus $11.17 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This combination medication is used to treat symptoms of Parkinson's disease or Parkinson-like symptoms (such as shakiness, stiffness, difficulty moving).
Compared with California prescribers
Dr. Viswanathan wrote 18 prescriptions for Carbidopa-Levodopa, about 27% as often as the typical California prescriber of it (68). Medicare paid $40.70 per fill, versus $38.14 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Albuterol (also known as salbutamol) is used to prevent and treat wheezing and shortness of breath caused by breathing problems (such as asthma, chronic obstructive pulmonary disease).
Compared with California prescribers
Dr. Viswanathan wrote 18 prescriptions for Ventolin Hfa, about 66% as often as the typical California prescriber of it (27). Medicare paid $56.10 per fill, versus $63.95 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This combination medication is used to treat symptoms of Parkinson's disease or Parkinson-like symptoms (such as shakiness, stiffness, difficulty moving).
Compared with California prescribers
Dr. Viswanathan wrote 17 prescriptions for Carbidopa-Levodopa Er, about 37% as often as the typical California prescriber of it (46). Medicare paid $32.28 per fill, versus $57.08 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Mupirocin is used to treat certain skin infections (such as impetigo).
Compared with California prescribers
Dr. Viswanathan wrote 17 prescriptions for Mupirocin, about half as often as the typical California prescriber of it (33). Medicare paid $6.56 per fill, versus $7.89 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Compared with California prescribers
Dr. Viswanathan wrote 16 prescriptions for Alcohol Pads, about half as often as the typical California prescriber of it (28). Medicare paid $33.22 per fill, versus $32.28 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to relieve nasal symptoms such as runny/itching/stuffy nose, sneezing, and post-nasal drip caused by allergies or other conditions.
Compared with California prescribers
Dr. Viswanathan wrote 16 prescriptions for Azelastine Hcl, about 34% as often as the typical California prescriber of it (47). Medicare paid $42.96 per fill, versus $22.82 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with California prescribers
Dr. Viswanathan wrote 16 prescriptions for Citalopram Hbr, about half as often as the typical California prescriber of it (30). Medicare paid $9.06 per fill, versus $8.24 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Bimatoprost is used to treat high pressure inside the eye due to glaucoma (open-angle type) or other eye diseases (such as ocular hypertension).
Compared with California prescribers
Dr. Viswanathan wrote 16 prescriptions for Lumigan, about 21% as often as the typical California prescriber of it (77). Medicare paid $310.26 per fill, versus $448.13 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain conditions of the stomach and intestines.
Compared with California prescribers
Dr. Viswanathan wrote 16 prescriptions for Metoclopramide Hcl, about 64% as often as the typical California prescriber of it (25). Medicare paid $6.86 per fill, versus $8.32 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Nystatin is used to treat fungal skin infections.
Compared with California prescribers
Dr. Viswanathan wrote 16 prescriptions for Nystatin, about 72% as often as the typical California prescriber of it (22). Medicare paid $27.70 per fill, versus $20.30 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Zolpidem is used for a short time to treat a certain sleep problem (insomnia) in adults.
Compared with California prescribers
Dr. Viswanathan wrote 16 prescriptions for Zolpidem Tartrate, about 36% as often as the typical California prescriber of it (45). Medicare paid $2.66 per fill, versus $6.02 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Ipratropium is used to control and prevent symptoms (wheezing and shortness of breath) caused by ongoing lung disease (chronic obstructive pulmonary disease-COPD which includes bronchitis and emphysema).
Compared with California prescribers
Dr. Viswanathan wrote 15 prescriptions for Atrovent Hfa, about 81% as often as the typical California prescriber of it (19). Medicare paid $440.09 per fill, versus $541.19 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is a nonsteroidal anti-inflammatory drug (NSAID), specifically a COX-2 inhibitor, which relieves pain and swelling (inflammation).
Compared with California prescribers
Dr. Viswanathan wrote 15 prescriptions for Celecoxib, about 33% as often as the typical California prescriber of it (46). Medicare paid $43.22 per fill, versus $32.27 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, anxiety).
Compared with California prescribers
Dr. Viswanathan wrote 15 prescriptions for Duloxetine Hcl, about 37% as often as the typical California prescriber of it (40). Medicare paid $8.15 per fill, versus $24.72 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Oxybutynin is used to treat certain bladder and urinary conditions (such as overactive bladder).
Compared with California prescribers
Dr. Viswanathan wrote 15 prescriptions for Oxybutynin Chloride, about half as often as the typical California prescriber of it (27). Medicare paid $2.92 per fill, versus $15.72 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
See also Warning section.
Compared with California prescribers
Dr. Viswanathan wrote 14 prescriptions for Diclofenac Sodium, about 30% as often as the typical California prescriber of it (47). Medicare paid $24.81 per fill, versus $107.23 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
See also Warning section.
Compared with California prescribers
Dr. Viswanathan wrote 14 prescriptions for Loperamide, about 61% as often as the typical California prescriber of it (23). Medicare paid $14.37 per fill, versus $15.35 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Meclizine is an antihistamine that is used to prevent and treat nausea, vomiting, and dizziness caused by motion sickness.
Compared with California prescribers
Dr. Viswanathan wrote 14 prescriptions for Meclizine Hcl, about 38% as often as the typical California prescriber of it (37). Medicare paid $9.87 per fill, versus $7.01 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is an antibiotic used to treat bladder infections (acute cystitis).
Compared with California prescribers
Dr. Viswanathan wrote 14 prescriptions for Nitrofurantoin Mono-Macro, about half as often as the typical California prescriber of it (26). Medicare paid $11.20 per fill, versus $13.21 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, panic attacks, obsessive compulsive disorder, post-traumatic stress disorder, social anxiety disorder).
Compared with California prescribers
Dr. Viswanathan wrote 14 prescriptions for Sertraline Hcl, about 31% as often as the typical California prescriber of it (46). Medicare paid $21.52 per fill, versus $9.59 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Digoxin is used to treat heart failure, usually along with other medications.
Compared with California prescribers
Dr. Viswanathan wrote 13 prescriptions for Digoxin, about half as often as the typical California prescriber of it (29). Medicare paid $9.55 per fill, versus $22.84 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This product contains two drugs used to treat high pressure inside the eye due to glaucoma (open angle-type) or other eye diseases (such as ocular hypertension).
Compared with California prescribers
Dr. Viswanathan wrote 13 prescriptions for Dorzolamide-Timolol, about 11% as often as the typical California prescriber of it (122). Medicare paid $51.03 per fill, versus $20.06 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Ezetimibe is used along with a low cholesterol/low fat diet and exercise to help lower cholesterol in the blood.
Compared with California prescribers
Dr. Viswanathan wrote 13 prescriptions for Ezetimibe, about 26% as often as the typical California prescriber of it (51). Medicare paid $15.89 per fill, versus $26.00 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to help relieve severe ongoing pain (such as due to cancer).
Compared with California prescribers
Dr. Viswanathan wrote 13 prescriptions for Fentanyl, about half as often as the typical California prescriber of it (26). Medicare paid $78.33 per fill, versus $128.42 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Ketoconazole is used to treat skin infections such as athlete's foot, jock itch, ringworm, and certain kinds of dandruff.
Compared with California prescribers
Dr. Viswanathan wrote 13 prescriptions for Ketoconazole, about 26% as often as the typical California prescriber of it (49). Medicare paid $50.99 per fill, versus $21.18 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Compared with California prescribers
Dr. Viswanathan wrote 13 prescriptions for Nano 2nd Gen Pen Needle, about 39% as often as the typical California prescriber of it (33). Medicare paid $92.57 per fill, versus $66.35 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Cyclosporine eye drops are used to treat a certain type of dry eyes.
Compared with California prescribers
Dr. Viswanathan wrote 13 prescriptions for Restasis, about 18% as often as the typical California prescriber of it (71). Medicare paid $669.64 per fill, versus $850.34 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This product is used to help the healing of burns and skin ulcers.
Compared with California prescribers
Dr. Viswanathan wrote 13 prescriptions for Santyl, about half as often as the typical California prescriber of it (24). Medicare paid $435.02 per fill, versus $948.89 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used in men who do not make enough of a natural substance called testosterone.
Compared with California prescribers
Dr. Viswanathan wrote 13 prescriptions for Testosterone Cypionate, about half as often as the typical California prescriber of it (28). Medicare paid $157.62 per fill, versus $39.53 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Baclofen is used to treat muscle spasms caused by certain conditions (such as multiple sclerosis, spinal cord injury/disease).
Compared with California prescribers
Dr. Viswanathan wrote 12 prescriptions for Baclofen, about 29% as often as the typical California prescriber of it (42). Medicare paid $9.20 per fill, versus $14.75 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat a variety of bacterial infections.
Compared with California prescribers
Dr. Viswanathan wrote 12 prescriptions for Ciprofloxacin Hcl, about 40% as often as the typical California prescriber of it (30). Medicare paid $7.73 per fill, versus $6.32 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Dexamethasone is used to treat conditions such as arthritis, blood/hormone disorders, allergic reactions, skin diseases, eye problems, breathing problems, bowel disorders, cancer, and immune system disorders.
Compared with California prescribers
Dr. Viswanathan wrote 12 prescriptions for Dexamethasone, about 34% as often as the typical California prescriber of it (35). Medicare paid $13.19 per fill, versus $13.93 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Dicyclomine is used to treat a certain type of intestinal problem called irritable bowel syndrome.
Compared with California prescribers
Dr. Viswanathan wrote 12 prescriptions for Dicyclomine Hcl, about half as often as the typical California prescriber of it (27). Medicare paid $18.32 per fill, versus $17.05 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Doxazosin is used alone or with other drugs to treat high blood pressure (hypertension).
Compared with California prescribers
Dr. Viswanathan wrote 12 prescriptions for Doxazosin Mesylate, about 41% as often as the typical California prescriber of it (29). Medicare paid $7.23 per fill, versus $15.44 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This product is used to treat certain types of heart failure.
Compared with California prescribers
Dr. Viswanathan wrote 12 prescriptions for Entresto, about 21% as often as the typical California prescriber of it (57). Medicare paid $708.52 per fill, versus $1,043.51 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Insulin isophane is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with California prescribers
Dr. Viswanathan wrote 12 prescriptions for Humulin N Kwikpen, about half as often as the typical California prescriber of it (27). Medicare paid $105.23 per fill, versus $176.99 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Meloxicam is used to treat arthritis.
Compared with California prescribers
Dr. Viswanathan wrote 12 prescriptions for Meloxicam, about 24% as often as the typical California prescriber of it (50). Medicare paid $2.60 per fill, versus $4.39 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Methenamine is used to prevent or control returning urinary tract infections caused by certain bacteria.
Compared with California prescribers
Dr. Viswanathan wrote 12 prescriptions for Methenamine Hippurate, about 33% as often as the typical California prescriber of it (36). Medicare paid $58.28 per fill, versus $75.37 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to help relieve moderate to severe pain.
Compared with California prescribers
Dr. Viswanathan wrote 12 prescriptions for Morphine Sulfate, about half as often as the typical California prescriber of it (26). Medicare paid $17.97 per fill, versus $27.24 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain types of serious (possibly fatal) irregular heartbeat (such as recurrent ventricular fibrillation/tachycardia).
Compared with California prescribers
Dr. Viswanathan wrote 11 prescriptions for Amiodarone Hcl, about 26% as often as the typical California prescriber of it (43). Medicare paid $12.70 per fill, versus $30.86 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as bipolar disorder, schizophrenia, Tourette's syndrome, and irritability associated with autistic disorder).
Compared with California prescribers
Dr. Viswanathan wrote 11 prescriptions for Aripiprazole, about 25% as often as the typical California prescriber of it (43). Medicare paid $63.30 per fill, versus $71.35 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Ceftriaxone is used to treat a wide variety of bacterial infections.
Compared with California prescribers
Dr. Viswanathan wrote 11 prescriptions for Ceftriaxone, about half as often as the typical California prescriber of it (26). Medicare paid $28.82 per fill, versus $86.07 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat seizure disorders, certain psychiatric conditions (manic phase of bipolar disorder), and to prevent migraine headaches.
Compared with California prescribers
Dr. Viswanathan wrote 11 prescriptions for Divalproex Sodium, about 23% as often as the typical California prescriber of it (48). Medicare paid $16.25 per fill, versus $38.94 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Insulin aspart is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with California prescribers
Dr. Viswanathan wrote 11 prescriptions for Fiasp Penfill, about 88% as often as the typical California prescriber of it (13). Medicare paid $557.17 per fill, versus $515.09 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Insulin lispro is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with California prescribers
Dr. Viswanathan wrote 11 prescriptions for Insulin Lispro Kwikpen U-100, about 40% as often as the typical California prescriber of it (27). Medicare paid $96.60 per fill, versus $135.73 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is a laxative used to treat constipation.
Compared with California prescribers
Dr. Viswanathan wrote 11 prescriptions for Lactulose, about 38% as often as the typical California prescriber of it (29). Medicare paid $16.90 per fill, versus $52.96 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is a combination of omeprazole and sodium bicarbonate.
Compared with California prescribers
Dr. Viswanathan wrote 11 prescriptions for Omeprazole-Sodium Bicarbonate, about 13% as often as the typical California prescriber of it (85). Medicare paid $1,649.43 per fill, versus $1,213.15 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Questions about Dr. Viswanathan’s prescriptions
What does Dr. Viswanathan prescribe most?
In 2024 Medicare Part D data, Dr. Viswanathan's most prescribed medications were Atorvastatin Calcium (313), Levothyroxine Sodium (240) and Metformin Hcl (224).
How does Dr. Viswanathan's prescribing compare with other California prescribers?
Of the 133 medications with a state comparison, Dr. Viswanathan prescribes 20 more often than the typical California prescriber, 29 about as often and 84 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Viswanathan prescribes?
No. It covers prescriptions filled by people with Medicare Part D drug coverage in 2024, and CMS leaves out any medication with fewer than 11 prescriptions.
About this data
This page shows one provider’s slice of public Medicare files. NPI Profile does not receive prescriptions or patient records.
| Source | What it provides here | Data year |
|---|---|---|
| CMS Medicare Part D Prescribers by Provider and Drug | Each medication, prescriptions, patients, 30-day fills, days of medication and cost. State comparisons average the California prescribers of the same medication and form, where at least five wrote it. | 2024 (released 2026, the most recent available) |
| CMS Medicare Part D Drug Spending Dashboard | What each medication is used for. | 2024 |
- Only prescriptions filled by people with Medicare Part D drug coverage are counted. Private insurance, Medicaid and cash purchases are not.
- CMS leaves out medications with fewer than 11 prescriptions and hides patient counts under 11.
- Cost per fill is what the plan and the patient paid the pharmacy together, not what you pay at the counter.
- Medication descriptions are summaries from CMS. They are not medical advice; ask a health care professional about any medication.
