THOMAS J WILLIAMSON MD
Prescription History 1013003201
Internal Medicine in Houston, TX
What does Dr. Williamson prescribe?
In 2024, Dr. Williamson wrote 9,131 Medicare prescriptions for 130 medications. The most prescribed was Atorvastatin Calcium, with 630 prescriptions for 174 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. Williamson prescribes.
Medications 130 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 Texas 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 Texas prescribers
Dr. Williamson wrote 630 prescriptions for Atorvastatin Calcium, about 3.5 times as often as the typical Texas prescriber of it (180). Medicare paid $29.94 per fill, versus $9.48 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 Texas prescribers
Dr. Williamson wrote 420 prescriptions for Amlodipine Besylate, about 3.2 times as often as the typical Texas prescriber of it (133). Medicare paid $8.56 per fill, versus $6.07 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
Levothyroxine is used to treat an underactive thyroid (hypothyroidism).
Compared with Texas prescribers
Dr. Williamson wrote 301 prescriptions for Levothyroxine Sodium, about 2 times as often as the typical Texas prescriber of it (150). Medicare paid $2.57 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
Lisinopril is used to treat high blood pressure.
Compared with Texas prescribers
Dr. Williamson wrote 295 prescriptions for Lisinopril, about 2.7 times as often as the typical Texas prescriber of it (108). Medicare paid $10.56 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
Omeprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers).
Compared with Texas prescribers
Dr. Williamson wrote 283 prescriptions for Omeprazole, about 3.6 times as often as the typical Texas prescriber of it (79). Medicare paid $25.59 per fill, versus $14.93 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
Tamsulosin is used by men to treat the symptoms of an enlarged prostate (benign prostatic hyperplasia-BPH).
Compared with Texas prescribers
Dr. Williamson wrote 270 prescriptions for Tamsulosin Hcl, about 3.1 times as often as the typical Texas prescriber of it (86). Medicare paid $44.21 per fill, versus $14.12 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 Texas prescribers
Dr. Williamson wrote 251 prescriptions for Losartan Potassium, about 2.3 times as often as the typical Texas prescriber of it (111). Medicare paid $21.69 per fill, versus $9.74 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 Texas prescribers
Dr. Williamson wrote 229 prescriptions for Metformin Hcl, about 2.4 times as often as the typical Texas prescriber of it (96). Medicare paid $17.02 per fill, versus $7.22 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
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 Texas prescribers
Dr. Williamson wrote 216 prescriptions for Rosuvastatin Calcium, about 1.8 times as often as the typical Texas prescriber of it (122). Medicare paid $44.15 per fill, versus $13.19 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
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 Texas prescribers
Dr. Williamson wrote 214 prescriptions for Simvastatin, about 3.5 times as often as the typical Texas prescriber of it (62). Medicare paid $13.08 per fill, versus $8.39 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
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 Texas prescribers
Dr. Williamson wrote 213 prescriptions for Furosemide, about 2.7 times as often as the typical Texas prescriber of it (78). Medicare paid $4.49 per fill, versus $5.09 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
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with Texas prescribers
Dr. Williamson wrote 197 prescriptions for Metformin Hcl Er, about 3.5 times as often as the typical Texas prescriber of it (56). Medicare paid $12.91 per fill, versus $9.50 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 Texas prescribers
Dr. Williamson wrote 187 prescriptions for Gabapentin, about 1.9 times as often as the typical Texas prescriber of it (96). Medicare paid $8.76 per fill, versus $15.87 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
Glimepiride is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Texas prescribers
Dr. Williamson wrote 166 prescriptions for Glimepiride, about 3.8 times as often as the typical Texas prescriber of it (44). Medicare paid $20.75 per fill, versus $8.72 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
Pantoprazole is used to treat certain stomach and esophagus problems (such as acid reflux).
Compared with Texas prescribers
Dr. Williamson wrote 158 prescriptions for Pantoprazole Sodium, about 2 times as often as the typical Texas prescriber of it (81). Medicare paid $19.80 per fill, versus $11.71 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 used to treat high blood pressure.
Compared with Texas prescribers
Dr. Williamson wrote 153 prescriptions for Hydrochlorothiazide, about 2.4 times as often as the typical Texas prescriber of it (65). Medicare paid $5.15 per fill, versus $4.50 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 Texas prescribers
Dr. Williamson wrote 151 prescriptions for Carvedilol, about 2.1 times as often as the typical Texas prescriber of it (71). Medicare paid $13.15 per fill, versus $8.22 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
Olmesartan is used to treat high blood pressure (hypertension).
Compared with Texas prescribers
Dr. Williamson wrote 142 prescriptions for Olmesartan Medoxomil, about 3.3 times as often as the typical Texas prescriber of it (43). Medicare paid $91.53 per fill, versus $18.82 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
Pravastatin 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 Texas prescribers
Dr. Williamson wrote 140 prescriptions for Pravastatin Sodium, about 2.7 times as often as the typical Texas prescriber of it (52). Medicare paid $39.95 per fill, versus $13.28 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
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 Texas prescribers
Dr. Williamson wrote 134 prescriptions for Famotidine, about 2.8 times as often as the typical Texas prescriber of it (49). Medicare paid $15.90 per fill, versus $14.87 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
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 Texas prescribers
Dr. Williamson wrote 131 prescriptions for Fluticasone Propionate, about 2.4 times as often as the typical Texas prescriber of it (55). Medicare paid $17.13 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
Empagliflozin is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Texas prescribers
Dr. Williamson wrote 130 prescriptions for Jardiance, about 2.5 times as often as the typical Texas prescriber of it (52). Medicare paid $845.10 per fill, versus $1,092.03 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 depression.
Compared with Texas prescribers
Dr. Williamson wrote 128 prescriptions for Trazodone Hcl, about 1.9 times as often as the typical Texas prescriber of it (67). Medicare paid $9.22 per fill, versus $8.61 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 Texas prescribers
Dr. Williamson wrote 123 prescriptions for Eliquis, about 1.5 times as often as the typical Texas prescriber of it (81). Medicare paid $721.41 per fill, versus $870.72 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
This medication is a beta-blocker used to treat chest pain (angina), heart failure, and high blood pressure.
Compared with Texas prescribers
Dr. Williamson wrote 123 prescriptions for Metoprolol Succinate, about 1.2 times as often as the typical Texas prescriber of it (101). Medicare paid $25.68 per fill, versus $14.00 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
Semaglutide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Texas prescribers
Dr. Williamson wrote 104 prescriptions for Ozempic, about 1.6 times as often as the typical Texas prescriber of it (67). Medicare paid $1,099.32 per fill, versus $1,293.82 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 product is a combination of two drugs: a calcium channel blocker (amlodipine) and an ACE inhibitor (benazepril).
Compared with Texas prescribers
Dr. Williamson wrote 102 prescriptions for Amlodipine Besylate-Benazepril, about 4 times as often as the typical Texas prescriber of it (25). Medicare paid $52.28 per fill, versus $18.09 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
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 Texas prescribers
Dr. Williamson wrote 102 prescriptions for Clopidogrel, about 1.6 times as often as the typical Texas prescriber of it (64). Medicare paid $26.82 per fill, versus $11.09 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
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 Texas prescribers
Dr. Williamson wrote 98 prescriptions for Sertraline Hcl, about 1.7 times as often as the typical Texas prescriber of it (59). Medicare paid $20.95 per fill, versus $9.11 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 Texas prescribers
Dr. Williamson wrote 97 prescriptions for Finasteride, about 1.8 times as often as the typical Texas prescriber of it (54). Medicare paid $24.10 per fill, versus $13.02 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
Allopurinol is used to treat gout and certain types of kidney stones.
Compared with Texas prescribers
Dr. Williamson wrote 93 prescriptions for Allopurinol, about 2 times as often as the typical Texas prescriber of it (47). Medicare paid $16.18 per fill, versus $9.68 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 Texas prescribers
Dr. Williamson wrote 89 prescriptions for Lisinopril-Hydrochlorothiazide, about 2.3 times as often as the typical Texas prescriber of it (38). Medicare paid $14.99 per fill, versus $7.96 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 product is used to treat high blood pressure (hypertension).
Compared with Texas prescribers
Dr. Williamson wrote 87 prescriptions for Amlodipine-Olmesartan, about 3.7 times as often as the typical Texas prescriber of it (23). Medicare paid $90.53 per fill, versus $46.13 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 a mineral supplement used to treat or prevent low amounts of potassium in the blood.
Compared with Texas prescribers
Dr. Williamson wrote 87 prescriptions for Potassium Chloride, about 1.4 times as often as the typical Texas prescriber of it (62). Medicare paid $23.30 per fill, versus $19.18 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
Metoprolol is used with or without other medications to treat high blood pressure (hypertension).
Compared with Texas prescribers
Dr. Williamson wrote 85 prescriptions for Metoprolol Tartrate, about 1.5 times as often as the typical Texas prescriber of it (59). Medicare paid $12.51 per fill, versus $6.73 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
Ezetimibe is used along with a low cholesterol/low fat diet and exercise to help lower cholesterol in the blood.
Compared with Texas prescribers
Dr. Williamson wrote 83 prescriptions for Ezetimibe, about 1.6 times as often as the typical Texas prescriber of it (53). Medicare paid $122.89 per fill, versus $23.89 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 combination medication is used to relieve moderate to severe pain.
Compared with Texas prescribers
Dr. Williamson wrote 83 prescriptions for Hydrocodone-Acetaminophen, about 69% as often as the typical Texas prescriber of it (120). Medicare paid $10.49 per fill, versus $25.16 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
This medication is used to treat depression.
Compared with Texas prescribers
Dr. Williamson wrote 77 prescriptions for Citalopram Hbr, about 2.1 times as often as the typical Texas prescriber of it (36). Medicare paid $6.46 per fill, versus $7.17 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
Hydralazine is used with or without other medications to treat high blood pressure.
Compared with Texas prescribers
Dr. Williamson wrote 75 prescriptions for Hydralazine Hcl, about 1.8 times as often as the typical Texas prescriber of it (42). Medicare paid $21.77 per fill, versus $12.44 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 drug is used to treat high blood pressure.
Compared with Texas prescribers
Dr. Williamson wrote 74 prescriptions for Losartan-Hydrochlorothiazide, about 1.9 times as often as the typical Texas prescriber of it (38). Medicare paid $55.14 per fill, versus $14.03 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
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 Texas prescribers
Dr. Williamson wrote 67 prescriptions for Albuterol Sulfate Hfa, about 1.2 times as often as the typical Texas prescriber of it (57). Medicare paid $20.23 per fill, versus $28.56 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 Texas prescribers
Dr. Williamson wrote 67 prescriptions for Alendronate Sodium, about 1.3 times as often as the typical Texas prescriber of it (52). Medicare paid $14.27 per fill, versus $8.44 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
Meloxicam is used to treat arthritis.
Compared with Texas prescribers
Dr. Williamson wrote 67 prescriptions for Meloxicam, about 1.2 times as often as the typical Texas prescriber of it (57). Medicare paid $7.47 per fill, versus $4.11 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 Texas prescribers
Dr. Williamson wrote 67 prescriptions for Triamcinolone Acetonide, about 1.7 times as often as the typical Texas prescriber of it (38). Medicare paid $9.64 per fill, versus $10.54 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 Texas prescribers
Dr. Williamson wrote 65 prescriptions for Atenolol, about 2.1 times as often as the typical Texas prescriber of it (31). Medicare paid $18.54 per fill, versus $7.49 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 Texas prescribers
Dr. Williamson wrote 63 prescriptions for Nifedipine Er, about 1.6 times as often as the typical Texas prescriber of it (39). Medicare paid $36.86 per fill, versus $25.74 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 Texas prescribers
Dr. Williamson wrote 61 prescriptions for Baclofen, about 1.5 times as often as the typical Texas prescriber of it (41). Medicare paid $6.84 per fill, versus $16.19 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 used to treat certain mental/mood disorders (such as depression, anxiety).
Compared with Texas prescribers
Dr. Williamson wrote 55 prescriptions for Escitalopram Oxalate, about as often as the typical Texas prescriber of it (51). Medicare paid $22.80 per fill, versus $10.58 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
Sildenafil is used to treat male sexual function problems (impotence or erectile dysfunction-ED).
Compared with Texas prescribers
Dr. Williamson wrote 53 prescriptions for Sildenafil Citrate, about 2.5 times as often as the typical Texas prescriber of it (21). Medicare paid $51.83 per fill, versus $64.74 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 Texas prescribers
Dr. Williamson wrote 50 prescriptions for Montelukast Sodium, about 72% as often as the typical Texas prescriber of it (69). Medicare paid $28.03 per fill, versus $10.85 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
Insulin glargine is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with Texas prescribers
Dr. Williamson wrote 48 prescriptions for Basaglar Kwikpen U-100, about 1.8 times as often as the typical Texas prescriber of it (27). Medicare paid $503.39 per fill, versus $378.20 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
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 Texas prescribers
Dr. Williamson wrote 47 prescriptions for Ondansetron Odt, about 1.7 times as often as the typical Texas prescriber of it (28). Medicare paid $6.22 per fill, versus $13.32 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
Doxazosin is used alone or with other drugs to treat high blood pressure (hypertension).
Compared with Texas prescribers
Dr. Williamson wrote 46 prescriptions for Doxazosin Mesylate, about 1.7 times as often as the typical Texas prescriber of it (28). Medicare paid $33.50 per fill, versus $15.33 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 treat blood clots (such as in deep vein thrombosis-DVT or pulmonary embolus-PE) and/or to prevent new clots from forming in your body.
Compared with Texas prescribers
Dr. Williamson wrote 45 prescriptions for Warfarin Sodium, about 1.3 times as often as the typical Texas prescriber of it (34). Medicare paid $10.38 per fill, versus $8.54 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
Valsartan is used to treat high blood pressure and heart failure.
Compared with Texas prescribers
Dr. Williamson wrote 43 prescriptions for Valsartan, about 1.2 times as often as the typical Texas prescriber of it (37). Medicare paid $72.93 per fill, versus $26.07 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 drug is used to treat high blood pressure (hypertension).
Compared with Texas prescribers
Dr. Williamson wrote 39 prescriptions for Olmesartan-Hydrochlorothiazide, about 1.4 times as often as the typical Texas prescriber of it (29). Medicare paid $106.73 per fill, versus $32.73 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 used to treat muscle spasms caused by certain conditions (such as multiple sclerosis, spinal cord injury).
Compared with Texas prescribers
Dr. Williamson wrote 39 prescriptions for Tizanidine Hcl, about 70% as often as the typical Texas prescriber of it (55). Medicare paid $12.86 per fill, versus $10.81 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 diabetes medication is a combination of 2 drugs (glipizide and metformin).
Compared with Texas prescribers
Dr. Williamson wrote 37 prescriptions for Glipizide-Metformin, about 1.4 times as often as the typical Texas prescriber of it (27). Medicare paid $56.40 per fill, versus $59.77 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 Texas prescribers
Dr. Williamson wrote 36 prescriptions for Donepezil Hcl, about half as often as the typical Texas prescriber of it (70). Medicare paid $26.76 per fill, versus $12.48 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 Texas prescribers
Dr. Williamson wrote 36 prescriptions for Lorazepam, about as often as the typical Texas prescriber of it (39). Medicare paid $0.86 per fill, versus $6.76 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 Texas prescribers
Dr. Williamson wrote 36 prescriptions for Mounjaro, about 70% as often as the typical Texas prescriber of it (51). Medicare paid $1,027.93 per fill, versus $1,267.11 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 Texas prescribers
Dr. Williamson wrote 34 prescriptions for Januvia, about as often as the typical Texas prescriber of it (34). Medicare paid $865.85 per fill, versus $1,016.43 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 Texas prescribers
Dr. Williamson wrote 34 prescriptions for Pregabalin, about 65% as often as the typical Texas prescriber of it (53). Medicare paid $5.63 per fill, versus $25.26 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
Glipizide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Texas prescribers
Dr. Williamson wrote 33 prescriptions for Glipizide, about 87% as often as the typical Texas prescriber of it (38). Medicare paid $14.92 per fill, versus $9.42 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
See also Warning section.
Compared with Texas prescribers
Dr. Williamson wrote 32 prescriptions for Tramadol Hcl, about half as often as the typical Texas prescriber of it (61). Medicare paid $0.77 per fill, versus $7.30 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 used to treat certain types of serious (possibly fatal) irregular heartbeat (such as recurrent ventricular fibrillation/tachycardia).
Compared with Texas prescribers
Dr. Williamson wrote 30 prescriptions for Amiodarone Hcl, about 67% as often as the typical Texas prescriber of it (45). Medicare paid $36.87 per fill, versus $23.63 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
Valacyclovir is used to treat infections caused by certain types of viruses.
Compared with Texas prescribers
Dr. Williamson wrote 30 prescriptions for Valacyclovir, about 1.3 times as often as the typical Texas prescriber of it (23). Medicare paid $57.65 per fill, versus $35.56 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 Texas prescribers
Dr. Williamson wrote 29 prescriptions for Alprazolam, about half as often as the typical Texas prescriber of it (66). Medicare paid $1.21 per fill, versus $5.46 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 Texas prescribers
Dr. Williamson wrote 28 prescriptions for Oxybutynin Chloride, about as often as the typical Texas prescriber of it (27). Medicare paid $31.76 per fill, versus $18.22 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
Bumetanide is used to reduce extra fluid in the body (edema) caused by conditions such as heart failure, liver disease, and kidney disease.
Compared with Texas prescribers
Dr. Williamson wrote 27 prescriptions for Bumetanide, about as often as the typical Texas prescriber of it (29). Medicare paid $26.84 per fill, versus $33.57 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
This medication is used to treat depression.
Compared with Texas prescribers
Dr. Williamson wrote 27 prescriptions for Bupropion Xl, about 71% as often as the typical Texas prescriber of it (38). Medicare paid $52.46 per fill, versus $24.94 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
Pioglitazone is a diabetes drug (thiazolidinedione-type, also called "glitazones") used along with a proper diet and exercise program to control high blood sugar in patients with type 2 diabetes.
Compared with Texas prescribers
Dr. Williamson wrote 26 prescriptions for Pioglitazone Hcl, about half as often as the typical Texas prescriber of it (44). Medicare paid $29.56 per fill, versus $12.62 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
Fenofibrate 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 Texas prescribers
Dr. Williamson wrote 25 prescriptions for Fenofibrate, about as often as the typical Texas prescriber of it (27). Medicare paid $27.10 per fill, versus $24.53 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
Ibuprofen is used to relieve pain from various conditions such as headache, dental pain, menstrual cramps, muscle aches, or arthritis.
Compared with Texas prescribers
Dr. Williamson wrote 25 prescriptions for Ibuprofen, about 71% as often as the typical Texas prescriber of it (35). Medicare paid $3.64 per fill, versus $7.30 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
Fenofibrate 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 Texas prescribers
Dr. Williamson wrote 24 prescriptions for Fenofibrate, about as often as the typical Texas prescriber of it (26). Medicare paid $20.31 per fill, versus $28.47 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
Irbesartan is used to treat high blood pressure (hypertension) and to help protect the kidneys from damage due to diabetes.
Compared with Texas prescribers
Dr. Williamson wrote 24 prescriptions for Irbesartan, about 80% as often as the typical Texas prescriber of it (30). Medicare paid $71.67 per fill, versus $17.53 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
Prednisone is used to treat conditions such as arthritis, blood disorders, breathing problems, severe allergies, skin diseases, cancer, eye problems, and immune system disorders.
Compared with Texas prescribers
Dr. Williamson wrote 24 prescriptions for Prednisone, about half as often as the typical Texas prescriber of it (47). Medicare paid $3.36 per fill, versus $3.54 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
Spironolactone is used to treat high blood pressure and heart failure.
Compared with Texas prescribers
Dr. Williamson wrote 24 prescriptions for Spironolactone, about half as often as the typical Texas prescriber of it (44). Medicare paid $14.37 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
This drug is used to treat high blood pressure.
Compared with Texas prescribers
Dr. Williamson wrote 24 prescriptions for Triamterene-Hydrochlorothiazid, about 90% as often as the typical Texas prescriber of it (27). Medicare paid $13.20 per fill, versus $9.12 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
Dulaglutide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Texas prescribers
Dr. Williamson wrote 24 prescriptions for Trulicity, about 71% as often as the typical Texas prescriber of it (34). Medicare paid $1,087.58 per fill, versus $1,393.87 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
This product is used to treat high blood pressure (hypertension).
Compared with Texas prescribers
Dr. Williamson wrote 23 prescriptions for Olmesartan-Amlodipine-Hctz, about as often as the typical Texas prescriber of it (22). Medicare paid $178.27 per fill, versus $102.79 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 Texas prescribers
Dr. Williamson wrote 22 prescriptions for Duloxetine Hcl, about 42% as often as the typical Texas prescriber of it (52). Medicare paid $72.12 per fill, versus $23.99 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 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 Texas prescribers
Dr. Williamson wrote 22 prescriptions for Hydrocortisone, about 73% as often as the typical Texas prescriber of it (30). Medicare paid $14.06 per fill, versus $17.89 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
Memantine is used to treat moderate to severe confusion (dementia) related to Alzheimer's disease.
Compared with Texas prescribers
Dr. Williamson wrote 22 prescriptions for Memantine Hcl, about 32% as often as the typical Texas prescriber of it (68). Medicare paid $152.30 per fill, versus $29.92 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 Texas prescribers
Dr. Williamson wrote 21 prescriptions for Azelastine Hcl, about half as often as the typical Texas prescriber of it (37). Medicare paid $32.43 per fill, versus $29.04 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 Texas prescribers
Dr. Williamson wrote 21 prescriptions for Clonazepam, about half as often as the typical Texas prescriber of it (48). Medicare paid $0.94 per fill, versus $8.82 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
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 Texas prescribers
Dr. Williamson wrote 21 prescriptions for Latanoprost, about 13% as often as the typical Texas prescriber of it (162). Medicare paid $11.91 per fill, versus $10.84 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 medication is used alone or with other medications to treat Parkinson's disease.
Compared with Texas prescribers
Dr. Williamson wrote 21 prescriptions for Ropinirole Hcl, about 68% as often as the typical Texas prescriber of it (31). Medicare paid $5.21 per fill, versus $17.12 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 drug is used to treat high blood pressure.
Compared with Texas prescribers
Dr. Williamson wrote 21 prescriptions for Valsartan-Hydrochlorothiazide, about 81% as often as the typical Texas prescriber of it (26). Medicare paid $72.62 per fill, versus $31.58 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 Texas prescribers
Dr. Williamson wrote 21 prescriptions for Wixela Inhub, about as often as the typical Texas prescriber of it (22). Medicare paid $108.83 per fill, versus $133.52 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
This medication is used along with regular tooth brushing/flossing to treat gingivitis, a gum disease that causes red, swollen, and easily bleeding gums.
Compared with Texas prescribers
Dr. Williamson wrote 20 prescriptions for Chlorhexidine Gluconate, about half as often as the typical Texas prescriber of it (45). Medicare paid $1.62 per fill, versus $4.12 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
Methylprednisolone is used to treat conditions such as arthritis, blood disorders, severe allergic reactions, certain cancers, eye conditions, skin/kidney/intestinal/lung diseases, and immune system disorders.
Compared with Texas prescribers
Dr. Williamson wrote 20 prescriptions for Methylprednisolone, about half as often as the typical Texas prescriber of it (36). Medicare paid $6.74 per fill, versus $7.37 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
Topiramate is used alone or with other medications to prevent and control seizures (epilepsy).
Compared with Texas prescribers
Dr. Williamson wrote 20 prescriptions for Topiramate, about 61% as often as the typical Texas prescriber of it (33). Medicare paid $18.25 per fill, versus $11.23 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
Acyclovir is used to treat infections caused by certain types of viruses.
Compared with Texas prescribers
Dr. Williamson wrote 19 prescriptions for Acyclovir, about 81% as often as the typical Texas prescriber of it (24). Medicare paid $13.10 per fill, versus $14.71 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 used to treat a variety of bacterial infections.
Compared with Texas prescribers
Dr. Williamson wrote 19 prescriptions for Ciprofloxacin Hcl, about half as often as the typical Texas prescriber of it (32). Medicare paid $3.38 per fill, versus $7.25 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
Clotrimazole is used to treat skin infections such as athlete's foot, jock itch, ringworm, and other fungal skin infections (candidiasis).
Compared with Texas prescribers
Dr. Williamson wrote 19 prescriptions for Clotrimazole, about 66% as often as the typical Texas prescriber of it (29). Medicare paid $17.58 per fill, versus $20.17 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 medication is used to treat blood clots (such as in deep vein thrombosis-DVT or pulmonary embolus-PE) and/or to prevent new clots from forming in your body.
Compared with Texas prescribers
Dr. Williamson wrote 19 prescriptions for Jantoven, about as often as the typical Texas prescriber of it (20). Medicare paid $10.22 per fill, versus $7.88 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 Texas prescribers
Dr. Williamson wrote 19 prescriptions for Mirtazapine, about 41% as often as the typical Texas prescriber of it (46). Medicare paid $38.99 per fill, versus $19.94 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
This is a long-acting form of oxybutynin that is used to treat overactive bladder and urinary conditions.
Compared with Texas prescribers
Dr. Williamson wrote 19 prescriptions for Oxybutynin Chloride Er, about half as often as the typical Texas prescriber of it (32). Medicare paid $100.65 per fill, versus $22.08 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
Azithromycin is used to treat a wide variety of bacterial infections.
Compared with Texas prescribers
Dr. Williamson wrote 18 prescriptions for Azithromycin, about half as often as the typical Texas prescriber of it (40). Medicare paid $4.46 per fill, versus $4.63 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
This medication is a nonsteroidal anti-inflammatory drug (NSAID), specifically a COX-2 inhibitor, which relieves pain and swelling (inflammation).
Compared with Texas prescribers
Dr. Williamson wrote 18 prescriptions for Celecoxib, about 41% as often as the typical Texas prescriber of it (44). Medicare paid $63.19 per fill, versus $26.25 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
This medication is used alone or with other medications to treat high blood pressure (hypertension).
Compared with Texas prescribers
Dr. Williamson wrote 18 prescriptions for Clonidine Hcl, about half as often as the typical Texas prescriber of it (30). Medicare paid $1.09 per fill, versus $6.07 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
Ketoconazole is used to treat skin infections such as athlete's foot, jock itch, ringworm, and certain kinds of dandruff.
Compared with Texas prescribers
Dr. Williamson wrote 18 prescriptions for Ketoconazole, about 36% as often as the typical Texas prescriber of it (51). Medicare paid $9.45 per fill, versus $16.68 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
Ibandronate is used to prevent and treat certain types of bone loss (osteoporosis).
Compared with Texas prescribers
Dr. Williamson wrote 17 prescriptions for Ibandronate Sodium, about 65% as often as the typical Texas prescriber of it (26). Medicare paid $106.61 per fill, versus $32.92 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 Texas prescribers
Dr. Williamson wrote 17 prescriptions for Mupirocin, about half as often as the typical Texas prescriber of it (33). Medicare paid $15.72 per fill, versus $8.57 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
Semaglutide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Texas prescribers
Dr. Williamson wrote 17 prescriptions for Rybelsus, about 64% as often as the typical Texas prescriber of it (27). Medicare paid $1,138.72 per fill, versus $1,541.63 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
This medication is used to treat fungal skin infections such as athlete's foot, jock itch, and ringworm.
Compared with Texas prescribers
Dr. Williamson wrote 16 prescriptions for Ciclopirox, about 26% as often as the typical Texas prescriber of it (62). Medicare paid $43.26 per fill, versus $22.52 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
Esomeprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers).
Compared with Texas prescribers
Dr. Williamson wrote 15 prescriptions for Esomeprazole Magnesium, about half as often as the typical Texas prescriber of it (29). Medicare paid $75.56 per fill, versus $47.27 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 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 Texas prescribers
Dr. Williamson wrote 15 prescriptions for Fluticasone-Salmeterol, about 60% as often as the typical Texas prescriber of it (25). Medicare paid $122.23 per fill, versus $157.40 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
Terazosin is used alone or with other drugs to treat high blood pressure (hypertension).
Compared with Texas prescribers
Dr. Williamson wrote 15 prescriptions for Terazosin Hcl, about 67% as often as the typical Texas prescriber of it (22). Medicare paid $10.97 per fill, versus $16.85 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 an antibiotic used to treat bladder infections (acute cystitis).
Compared with Texas prescribers
Dr. Williamson wrote 14 prescriptions for Nitrofurantoin Mono-Macro, about half as often as the typical Texas prescriber of it (29). Medicare paid $11.50 per fill, versus $17.68 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 Texas prescribers
Dr. Williamson wrote 14 prescriptions for Nystatin, about half as often as the typical Texas prescriber of it (24). Medicare paid $14.74 per fill, versus $16.96 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 used alone or with other medications to prevent nausea and vomiting caused by cancer drug treatment (chemotherapy) and radiation therapy.
Compared with Texas prescribers
Dr. Williamson wrote 14 prescriptions for Ondansetron Hcl, about half as often as the typical Texas prescriber of it (30). Medicare paid $1.92 per fill, versus $12.56 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, panic attacks, and social anxiety disorder).
Compared with Texas prescribers
Dr. Williamson wrote 14 prescriptions for Venlafaxine Hcl Er, about half as often as the typical Texas prescriber of it (31). Medicare paid $35.04 per fill, versus $23.06 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
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 Texas prescribers
Dr. Williamson wrote 13 prescriptions for Breyna, about 68% as often as the typical Texas prescriber of it (19). Medicare paid $225.57 per fill, versus $212.63 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
Dapagliflozin is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with Texas prescribers
Dr. Williamson wrote 13 prescriptions for Farxiga, about 28% as often as the typical Texas prescriber of it (46). Medicare paid $1,212.58 per fill, versus $985.01 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
See also Warning section.
Compared with Texas prescribers
Dr. Williamson wrote 13 prescriptions for Naproxen, about half as often as the typical Texas prescriber of it (30). Medicare paid $3.87 per fill, versus $17.96 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
Levothyroxine is used to treat an underactive thyroid (hypothyroidism).
Compared with Texas prescribers
Dr. Williamson wrote 13 prescriptions for Synthroid, about 33% as often as the typical Texas prescriber of it (40). Medicare paid $69.58 per fill, versus $68.20 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
See also Warning section.
Compared with Texas prescribers
Dr. Williamson wrote 12 prescriptions for Diclofenac Sodium, about 31% as often as the typical Texas prescriber of it (39). Medicare paid $41.88 per fill, versus $37.83 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 Texas prescribers
Dr. Williamson wrote 12 prescriptions for Dorzolamide-Timolol, about 11% as often as the typical Texas prescriber of it (112). Medicare paid $15.01 per fill, versus $16.72 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
This medication is used to treat high blood pressure.
Compared with Texas prescribers
Dr. Williamson wrote 12 prescriptions for Indapamide, about half as often as the typical Texas prescriber of it (28). Medicare paid $46.90 per fill, versus $12.65 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
Insulin glargine is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with Texas prescribers
Dr. Williamson wrote 12 prescriptions for Lantus Solostar, about 34% as often as the typical Texas prescriber of it (36). Medicare paid $245.18 per fill, versus $135.60 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
This medication is used to treat certain conditions of the stomach and intestines.
Compared with Texas prescribers
Dr. Williamson wrote 12 prescriptions for Metoclopramide Hcl, about half as often as the typical Texas prescriber of it (27). Medicare paid $0.52 per fill, versus $7.96 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Compared with Texas prescribers
Dr. Williamson wrote 12 prescriptions for Ultra-Fine Mini Pen Needle, about half as often as the typical Texas prescriber of it (22). Medicare paid $60.89 per fill, versus $89.59 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
This medication is used to treat depression.
Compared with Texas prescribers
Dr. Williamson wrote 11 prescriptions for Bupropion Hcl Sr, about half as often as the typical Texas prescriber of it (24). Medicare paid $23.44 per fill, versus $19.43 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
Diltiazem is used to treat high blood pressure (hypertension) and prevent chest pain (angina).
Compared with Texas prescribers
Dr. Williamson wrote 11 prescriptions for Diltiazem 24hr Er, about half as often as the typical Texas prescriber of it (19). Medicare paid $46.30 per fill, versus $29.30 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 mineral supplement used to treat or prevent low amounts of potassium in the blood.
Compared with Texas prescribers
Dr. Williamson wrote 11 prescriptions for Klor-Con M20, about 32% as often as the typical Texas prescriber of it (34). Medicare paid $40.13 per fill, versus $13.56 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 vaccine is used by adults to prevent zoster (shingles).
Compared with Texas prescribers
Dr. Williamson wrote 11 prescriptions for Shingrix, about 4% as often as the typical Texas prescriber of it (245). Medicare paid $210.21 per fill, versus $189.46 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Compared with Texas prescribers
Dr. Williamson wrote 11 prescriptions for Ultra-Fine Short Pen Needle, about half as often as the typical Texas prescriber of it (19). Medicare paid $50.09 per fill, versus $93.74 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
Zafirlukast is used to control and prevent symptoms (such as wheezing and shortness of breath) caused by asthma.
Compared with Texas prescribers
Dr. Williamson wrote 11 prescriptions for Zafirlukast, about 34% as often as the typical Texas prescriber of it (32). Medicare paid $50.13 per fill, versus $84.34 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. Williamson’s prescriptions
What does Dr. Williamson prescribe most?
In 2024 Medicare Part D data, Dr. Williamson's most prescribed medications were Atorvastatin Calcium (630), Amlodipine Besylate (420) and Levothyroxine Sodium (301).
How does Dr. Williamson's prescribing compare with other Texas prescribers?
Of the 130 medications with a state comparison, Dr. Williamson prescribes 51 more often than the typical Texas prescriber, 19 about as often and 60 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Williamson 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 Texas 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.
