DR. LAURA C KNOBEL MD
Prescription History 1184720708
Family Medicine in Bluffton, SC
What does Dr. Knobel prescribe?
In 2024, Dr. Knobel wrote 4,171 Medicare prescriptions for 92 medications. The most prescribed was Atorvastatin Calcium, with 293 prescriptions for 89 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. Knobel prescribes.
Medications 92 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 South Carolina 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 South Carolina prescribers
Dr. Knobel wrote 293 prescriptions for Atorvastatin Calcium, about 1.6 times as often as the typical South Carolina prescriber of it (187). Medicare paid $9.35 per fill, versus $10.24 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
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 South Carolina prescribers
Dr. Knobel wrote 185 prescriptions for Rosuvastatin Calcium, about 1.4 times as often as the typical South Carolina prescriber of it (131). Medicare paid $12.35 per fill, versus $15.06 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
Levothyroxine is used to treat an underactive thyroid (hypothyroidism).
Compared with South Carolina prescribers
Dr. Knobel wrote 181 prescriptions for Levothyroxine Sodium, about 1.2 times as often as the typical South Carolina prescriber of it (152). Medicare paid $10.10 per fill, versus $10.28 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
Amlodipine is used with or without other medications to treat high blood pressure.
Compared with South Carolina prescribers
Dr. Knobel wrote 176 prescriptions for Amlodipine Besylate, about as often as the typical South Carolina prescriber of it (164). Medicare paid $6.25 per fill, versus $5.78 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 South Carolina prescribers
Dr. Knobel wrote 146 prescriptions for Zolpidem Tartrate, about 2.4 times as often as the typical South Carolina prescriber of it (62). Medicare paid $4.37 per fill, versus $5.99 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
Lisinopril is used to treat high blood pressure.
Compared with South Carolina prescribers
Dr. Knobel wrote 138 prescriptions for Lisinopril, about 1.3 times as often as the typical South Carolina prescriber of it (104). Medicare paid $6.95 per fill, versus $6.57 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
Losartan is used to treat high blood pressure (hypertension) and to help protect the kidneys from damage due to diabetes.
Compared with South Carolina prescribers
Dr. Knobel wrote 131 prescriptions for Losartan Potassium, about 1.2 times as often as the typical South Carolina prescriber of it (111). Medicare paid $11.39 per fill, versus $10.13 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 anxiety.
Compared with South Carolina prescribers
Dr. Knobel wrote 125 prescriptions for Lorazepam, about 2.1 times as often as the typical South Carolina prescriber of it (58). Medicare paid $6.94 per fill, versus $5.97 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 South Carolina prescribers
Dr. Knobel wrote 102 prescriptions for Simvastatin, about 1.6 times as often as the typical South Carolina prescriber of it (65). Medicare paid $6.98 per fill, versus $8.58 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
Gabapentin is used with other medications to prevent and control seizures.
Compared with South Carolina prescribers
Dr. Knobel wrote 99 prescriptions for Gabapentin, about as often as the typical South Carolina prescriber of it (97). Medicare paid $11.41 per fill, versus $15.01 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
Pantoprazole is used to treat certain stomach and esophagus problems (such as acid reflux).
Compared with South Carolina prescribers
Dr. Knobel wrote 98 prescriptions for Pantoprazole Sodium, about as often as the typical South Carolina prescriber of it (86). Medicare paid $17.20 per fill, versus $12.36 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 South Carolina prescribers
Dr. Knobel wrote 97 prescriptions for Alprazolam, about 1.2 times as often as the typical South Carolina prescriber of it (81). Medicare paid $3.35 per fill, versus $5.04 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
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with South Carolina prescribers
Dr. Knobel wrote 88 prescriptions for Metformin Hcl, about as often as the typical South Carolina prescriber of it (88). Medicare paid $6.71 per fill, versus $6.92 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
Azithromycin is used to treat a wide variety of bacterial infections.
Compared with South Carolina prescribers
Dr. Knobel wrote 86 prescriptions for Azithromycin, about 2.3 times as often as the typical South Carolina prescriber of it (38). Medicare paid $3.11 per fill, versus $4.82 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, anxiety).
Compared with South Carolina prescribers
Dr. Knobel wrote 85 prescriptions for Duloxetine Hcl, about 1.5 times as often as the typical South Carolina prescriber of it (56). Medicare paid $16.35 per fill, versus $24.99 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 high blood pressure.
Compared with South Carolina prescribers
Dr. Knobel wrote 85 prescriptions for Hydrochlorothiazide, about as often as the typical South Carolina prescriber of it (81). Medicare paid $4.59 per fill, versus $4.02 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
Cefuroxime is used to treat a wide variety of bacterial infections.
Compared with South Carolina prescribers
Dr. Knobel wrote 84 prescriptions for Cefuroxime, about 2.6 times as often as the typical South Carolina prescriber of it (32). Medicare paid $12.42 per fill, versus $13.00 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
Omeprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers).
Compared with South Carolina prescribers
Dr. Knobel wrote 75 prescriptions for Omeprazole, about 66% as often as the typical South Carolina prescriber of it (113). Medicare paid $12.53 per fill, versus $12.91 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
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 South Carolina prescribers
Dr. Knobel wrote 71 prescriptions for Methylprednisolone, about 1.8 times as often as the typical South Carolina prescriber of it (39). Medicare paid $5.78 per fill, versus $6.14 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
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 South Carolina prescribers
Dr. Knobel wrote 70 prescriptions for Sertraline Hcl, about as often as the typical South Carolina prescriber of it (62). Medicare paid $10.77 per fill, versus $8.92 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 a beta-blocker used to treat chest pain (angina), heart failure, and high blood pressure.
Compared with South Carolina prescribers
Dr. Knobel wrote 62 prescriptions for Metoprolol Succinate, about half as often as the typical South Carolina prescriber of it (107). Medicare paid $18.44 per fill, versus $13.83 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
Levothyroxine is used to treat an underactive thyroid (hypothyroidism).
Compared with South Carolina prescribers
Dr. Knobel wrote 62 prescriptions for Synthroid, about 1.6 times as often as the typical South Carolina prescriber of it (39). Medicare paid $91.22 per fill, versus $69.61 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
This medication is a nonsteroidal anti-inflammatory drug (NSAID), specifically a COX-2 inhibitor, which relieves pain and swelling (inflammation).
Compared with South Carolina prescribers
Dr. Knobel wrote 59 prescriptions for Celecoxib, about 1.3 times as often as the typical South Carolina prescriber of it (45). Medicare paid $42.11 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
Clonazepam is used to prevent and control seizures.
Compared with South Carolina prescribers
Dr. Knobel wrote 58 prescriptions for Clonazepam, about as often as the typical South Carolina prescriber of it (56). Medicare paid $5.08 per fill, versus $7.14 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
This medication is used to treat certain mental/mood disorders (such as depression, anxiety).
Compared with South Carolina prescribers
Dr. Knobel wrote 58 prescriptions for Escitalopram Oxalate, about as often as the typical South Carolina prescriber of it (59). Medicare paid $14.52 per fill, versus $11.46 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
Semaglutide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with South Carolina prescribers
Dr. Knobel wrote 54 prescriptions for Ozempic, about 85% as often as the typical South Carolina prescriber of it (63). Medicare paid $1,019.37 per fill, versus $1,292.73 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 South Carolina prescribers
Dr. Knobel wrote 51 prescriptions for Ezetimibe, about as often as the typical South Carolina prescriber of it (52). Medicare paid $31.07 per fill, versus $26.89 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
Valacyclovir is used to treat infections caused by certain types of viruses.
Compared with South Carolina prescribers
Dr. Knobel wrote 49 prescriptions for Valacyclovir, about 2.1 times as often as the typical South Carolina prescriber of it (24). Medicare paid $26.94 per fill, versus $33.76 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
Tamsulosin is used by men to treat the symptoms of an enlarged prostate (benign prostatic hyperplasia-BPH).
Compared with South Carolina prescribers
Dr. Knobel wrote 48 prescriptions for Tamsulosin Hcl, about half as often as the typical South Carolina prescriber of it (86). Medicare paid $25.07 per fill, versus $13.82 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 South Carolina prescribers
Dr. Knobel wrote 45 prescriptions for Bupropion Xl, about as often as the typical South Carolina prescriber of it (42). Medicare paid $30.40 per fill, versus $25.19 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, panic attacks, obsessive compulsive disorder).
Compared with South Carolina prescribers
Dr. Knobel wrote 43 prescriptions for Fluoxetine Hcl, about as often as the typical South Carolina prescriber of it (43). Medicare paid $9.03 per fill, versus $9.63 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
Meloxicam is used to treat arthritis.
Compared with South Carolina prescribers
Dr. Knobel wrote 38 prescriptions for Meloxicam, about 63% as often as the typical South Carolina prescriber of it (61). Medicare paid $2.07 per fill, versus $3.93 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
This medication is used to treat a variety of bacterial infections.
Compared with South Carolina prescribers
Dr. Knobel wrote 37 prescriptions for Ciprofloxacin Hcl, about 1.3 times as often as the typical South Carolina prescriber of it (29). Medicare paid $7.75 per fill, versus $5.72 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 hormone.
Compared with South Carolina prescribers
Dr. Knobel wrote 36 prescriptions for Estradiol, about as often as the typical South Carolina prescriber of it (38). Medicare paid $36.68 per fill, versus $43.72 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
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 South Carolina prescribers
Dr. Knobel wrote 36 prescriptions for Prednisone, about 65% as often as the typical South Carolina prescriber of it (55). Medicare paid $4.01 per fill, versus $3.83 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
Montelukast is used to control and prevent symptoms caused by asthma (such as wheezing and shortness of breath).
Compared with South Carolina prescribers
Dr. Knobel wrote 35 prescriptions for Montelukast Sodium, about half as often as the typical South Carolina prescriber of it (71). Medicare paid $13.99 per fill, versus $10.60 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
Raloxifene is used by women to prevent and treat bone loss (osteoporosis) after menopause.
Compared with South Carolina prescribers
Dr. Knobel wrote 35 prescriptions for Raloxifene Hcl, about 1.7 times as often as the typical South Carolina prescriber of it (20). Medicare paid $52.79 per fill, versus $52.63 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
See also Warning section.
Compared with South Carolina prescribers
Dr. Knobel wrote 35 prescriptions for Tramadol Hcl, about half as often as the typical South Carolina prescriber of it (64). Medicare paid $3.17 per fill, versus $6.50 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
This medication is used to treat depression.
Compared with South Carolina prescribers
Dr. Knobel wrote 34 prescriptions for Trazodone Hcl, about half as often as the typical South Carolina prescriber of it (74). Medicare paid $9.60 per fill, versus $8.64 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 South Carolina prescribers
Dr. Knobel wrote 30 prescriptions for Metoprolol Tartrate, about half as often as the typical South Carolina prescriber of it (64). Medicare paid $4.26 per fill, versus $6.30 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
Sitagliptin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with South Carolina prescribers
Dr. Knobel wrote 29 prescriptions for Januvia, about 85% as often as the typical South Carolina prescriber of it (34). Medicare paid $756.67 per fill, versus $950.72 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
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 South Carolina prescribers
Dr. Knobel wrote 29 prescriptions for Pravastatin Sodium, about 39% as often as the typical South Carolina prescriber of it (74). Medicare paid $15.74 per fill, versus $13.18 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
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 South Carolina prescribers
Dr. Knobel wrote 25 prescriptions for Furosemide, about 32% as often as the typical South Carolina prescriber of it (79). Medicare paid $5.49 per fill, versus $4.54 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 South Carolina prescribers
Dr. Knobel wrote 23 prescriptions for Spironolactone, about half as often as the typical South Carolina prescriber of it (48). Medicare paid $22.95 per fill, versus $8.41 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 South Carolina prescribers
Dr. Knobel wrote 22 prescriptions for Allopurinol, about 41% as often as the typical South Carolina prescriber of it (54). Medicare paid $12.48 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
Donepezil is used to treat confusion (dementia) related to Alzheimer's disease.
Compared with South Carolina prescribers
Dr. Knobel wrote 22 prescriptions for Donepezil Hcl, about 40% as often as the typical South Carolina prescriber of it (55). Medicare paid $6.88 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
Amoxicillin/clavulanic acid is a combination penicillin-type antibiotic used to treat a wide variety of bacterial infections.
Compared with South Carolina prescribers
Dr. Knobel wrote 21 prescriptions for Amoxicillin-Clavulanate Potass, about 72% as often as the typical South Carolina prescriber of it (29). Medicare paid $8.49 per fill, versus $8.47 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
Atenolol is used with or without other medications to treat high blood pressure (hypertension).
Compared with South Carolina prescribers
Dr. Knobel wrote 21 prescriptions for Atenolol, about 62% as often as the typical South Carolina prescriber of it (34). Medicare paid $18.64 per fill, versus $7.45 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 hormone (estrogen).
Compared with South Carolina prescribers
Dr. Knobel wrote 21 prescriptions for Estradiol (Twice Weekly), about as often as the typical South Carolina prescriber of it (21). Medicare paid $101.58 per fill, versus $84.62 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 in men who do not make enough of a natural substance called testosterone.
Compared with South Carolina prescribers
Dr. Knobel wrote 21 prescriptions for Testosterone Cypionate, about 66% as often as the typical South Carolina prescriber of it (32). Medicare paid $21.59 per fill, versus $31.08 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
See also Warning section.
Compared with South Carolina prescribers
Dr. Knobel wrote 20 prescriptions for Diclofenac Sodium, about half as often as the typical South Carolina prescriber of it (45). Medicare paid $12.93 per fill, versus $29.08 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
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 South Carolina prescribers
Dr. Knobel wrote 20 prescriptions for Eliquis, about 23% as often as the typical South Carolina prescriber of it (88). Medicare paid $968.75 per fill, versus $852.02 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 South Carolina prescribers
Dr. Knobel wrote 20 prescriptions for Hydrocodone-Acetaminophen, about 23% as often as the typical South Carolina prescriber of it (89). Medicare paid $10.83 per fill, versus $18.99 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
Empagliflozin is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with South Carolina prescribers
Dr. Knobel wrote 20 prescriptions for Jardiance, about 37% as often as the typical South Carolina prescriber of it (55). Medicare paid $1,031.26 per fill, versus $1,010.62 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
Tirzepatide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with South Carolina prescribers
Dr. Knobel wrote 20 prescriptions for Mounjaro, about 37% as often as the typical South Carolina prescriber of it (54). Medicare paid $1,242.85 per fill, versus $1,270.23 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
This medication is used to treat high blood pressure.
Compared with South Carolina prescribers
Dr. Knobel wrote 19 prescriptions for Lisinopril-Hydrochlorothiazide, about half as often as the typical South Carolina prescriber of it (43). Medicare paid $11.06 per fill, versus $8.04 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
Cyclobenzaprine is used short-term to treat muscle spasms.
Compared with South Carolina prescribers
Dr. Knobel wrote 18 prescriptions for Cyclobenzaprine Hcl, about half as often as the typical South Carolina prescriber of it (42). Medicare paid $9.34 per fill, versus $7.64 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 a wide variety of bacterial infections, including those that cause acne.
Compared with South Carolina prescribers
Dr. Knobel wrote 18 prescriptions for Doxycycline Monohydrate, about half as often as the typical South Carolina prescriber of it (32). Medicare paid $10.37 per fill, versus $13.37 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
See also Warning section.
Compared with South Carolina prescribers
Dr. Knobel wrote 18 prescriptions for Naproxen, about 70% as often as the typical South Carolina prescriber of it (26). Medicare paid $10.82 per fill, versus $9.98 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 certain bladder problems (overactive bladder, neurogenic detrusor overactivity).
Compared with South Carolina prescribers
Dr. Knobel wrote 16 prescriptions for Myrbetriq, about 42% as often as the typical South Carolina prescriber of it (38). Medicare paid $1,179.57 per fill, versus $665.29 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 South Carolina prescribers
Dr. Knobel wrote 16 prescriptions for Pioglitazone Hcl, about 39% as often as the typical South Carolina prescriber of it (41). Medicare paid $5.86 per fill, versus $14.65 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
Evolocumab is used along with a proper diet to help lower "bad" cholesterol (LDL) in the blood.
Compared with South Carolina prescribers
Dr. Knobel wrote 16 prescriptions for Repatha Sureclick, about 39% as often as the typical South Carolina prescriber of it (41). Medicare paid $1,224.64 per fill, versus $908.15 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
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 South Carolina prescribers
Dr. Knobel wrote 15 prescriptions for Albuterol Sulfate Hfa, about 21% as often as the typical South Carolina prescriber of it (73). Medicare paid $17.45 per fill, versus $30.67 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
Thyroid hormone is used to treat underactive thyroid (hypothyroidism).
Compared with South Carolina prescribers
Dr. Knobel wrote 15 prescriptions for Armour Thyroid, about 78% as often as the typical South Carolina prescriber of it (19). Medicare paid $47.46 per fill, versus $67.57 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
Carvedilol is used to treat high blood pressure and heart failure.
Compared with South Carolina prescribers
Dr. Knobel wrote 15 prescriptions for Carvedilol, about 23% as often as the typical South Carolina prescriber of it (66). Medicare paid $9.21 per fill, versus $8.16 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
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 South Carolina prescribers
Dr. Knobel wrote 15 prescriptions for Fluticasone Propionate, about 23% as often as the typical South Carolina prescriber of it (65). Medicare paid $14.74 per fill, versus $14.29 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 South Carolina prescribers
Dr. Knobel wrote 15 prescriptions for Fluticasone-Salmeterol, about 61% as often as the typical South Carolina prescriber of it (25). Medicare paid $101.38 per fill, versus $162.36 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 South Carolina prescribers
Dr. Knobel wrote 15 prescriptions for Irbesartan, about half as often as the typical South Carolina prescriber of it (31). Medicare paid $8.38 per fill, versus $22.87 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 drug is used to treat high blood pressure.
Compared with South Carolina prescribers
Dr. Knobel wrote 15 prescriptions for Losartan-Hydrochlorothiazide, about 36% as often as the typical South Carolina prescriber of it (42). Medicare paid $6.17 per fill, versus $13.29 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 degludec is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with South Carolina prescribers
Dr. Knobel wrote 15 prescriptions for Tresiba Flextouch U-200, about half as often as the typical South Carolina prescriber of it (27). Medicare paid $1,932.52 per fill, versus $1,104.82 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
Ibuprofen is used to relieve pain from various conditions such as headache, dental pain, menstrual cramps, muscle aches, or arthritis.
Compared with South Carolina prescribers
Dr. Knobel wrote 14 prescriptions for Ibuprofen, about half as often as the typical South Carolina prescriber of it (33). Medicare paid $4.35 per fill, versus $7.98 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
Levofloxacin is used to treat a variety of bacterial infections.
Compared with South Carolina prescribers
Dr. Knobel wrote 14 prescriptions for Levofloxacin, about half as often as the typical South Carolina prescriber of it (27). Medicare paid $4.50 per fill, versus $5.18 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
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with South Carolina prescribers
Dr. Knobel wrote 14 prescriptions for Metformin Hcl Er, about 23% as often as the typical South Carolina prescriber of it (61). Medicare paid $13.65 per fill, versus $9.78 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 South Carolina prescribers
Dr. Knobel wrote 14 prescriptions for Metoclopramide Hcl, about half as often as the typical South Carolina prescriber of it (24). Medicare paid $8.95 per fill, versus $8.11 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
Nystatin is used to treat fungal skin infections.
Compared with South Carolina prescribers
Dr. Knobel wrote 14 prescriptions for Nystatin, about half as often as the typical South Carolina prescriber of it (24). Medicare paid $22.22 per fill, versus $16.00 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
Olmesartan is used to treat high blood pressure (hypertension).
Compared with South Carolina prescribers
Dr. Knobel wrote 14 prescriptions for Olmesartan Medoxomil, about 38% as often as the typical South Carolina prescriber of it (37). Medicare paid $17.37 per fill, versus $22.59 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 certain mental/mood disorders (such as depression, anxiety, panic attacks, and social anxiety disorder).
Compared with South Carolina prescribers
Dr. Knobel wrote 14 prescriptions for Venlafaxine Hcl Er, about 39% as often as the typical South Carolina prescriber of it (36). Medicare paid $32.06 per fill, versus $22.26 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
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 South Carolina prescribers
Dr. Knobel wrote 13 prescriptions for Azelastine Hcl, about 35% as often as the typical South Carolina prescriber of it (38). Medicare paid $22.87 per fill, versus $27.05 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 depression.
Compared with South Carolina prescribers
Dr. Knobel wrote 13 prescriptions for Citalopram Hbr, about 32% as often as the typical South Carolina prescriber of it (41). Medicare paid $5.44 per fill, versus $6.63 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
Sitagliptin/metformin is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with South Carolina prescribers
Dr. Knobel wrote 13 prescriptions for Janumet Xr, about half as often as the typical South Carolina prescriber of it (22). Medicare paid $752.74 per fill, versus $829.62 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 a hormone.
Compared with South Carolina prescribers
Dr. Knobel wrote 13 prescriptions for Premarin, about 70% as often as the typical South Carolina prescriber of it (19). Medicare paid $195.71 per fill, versus $357.19 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
Valsartan is used to treat high blood pressure and heart failure.
Compared with South Carolina prescribers
Dr. Knobel wrote 13 prescriptions for Valsartan, about 28% as often as the typical South Carolina prescriber of it (47). Medicare paid $39.91 per fill, versus $25.44 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 medication is used to prevent and decrease symptoms (wheezing and trouble breathing) caused by asthma and ongoing lung disease (chronic obstructive pulmonary disease-COPD, including chronic bronchitis and emphysema).
Compared with South Carolina prescribers
Dr. Knobel wrote 12 prescriptions for Breo Ellipta, about 38% as often as the typical South Carolina prescriber of it (32). Medicare paid $345.65 per fill, versus $529.01 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
Lovastatin 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 South Carolina prescribers
Dr. Knobel wrote 12 prescriptions for Lovastatin, about half as often as the typical South Carolina prescriber of it (25). Medicare paid $14.13 per fill, versus $9.46 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
This drug is used to treat high blood pressure.
Compared with South Carolina prescribers
Dr. Knobel wrote 12 prescriptions for Triamterene-Hydrochlorothiazid, about half as often as the typical South Carolina prescriber of it (28). Medicare paid $18.06 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
This medication is used to treat depression.
Compared with South Carolina prescribers
Dr. Knobel wrote 11 prescriptions for Amitriptyline Hcl, about 37% as often as the typical South Carolina prescriber of it (30). Medicare paid $8.07 per fill, versus $14.43 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
Atomoxetine is used to treat attention-deficit hyperactivity disorder (ADHD) as part of a total treatment plan, including psychological, social, and other treatments.
Compared with South Carolina prescribers
Dr. Knobel wrote 11 prescriptions for Atomoxetine Hcl, about 67% as often as the typical South Carolina prescriber of it (16). Medicare paid $44.03 per fill, versus $82.72 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
Baclofen is used to treat muscle spasms caused by certain conditions (such as multiple sclerosis, spinal cord injury/disease).
Compared with South Carolina prescribers
Dr. Knobel wrote 11 prescriptions for Baclofen, about 29% as often as the typical South Carolina prescriber of it (38). Medicare paid $35.77 per fill, versus $16.91 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
This medication is used to treat certain mental/mood disorders (such as depression, panic attacks, obsessive compulsive disorder, anxiety disorders, post-traumatic stress disorder).
Compared with South Carolina prescribers
Dr. Knobel wrote 11 prescriptions for Paroxetine Hcl, about 40% as often as the typical South Carolina prescriber of it (28). Medicare paid $18.62 per fill, versus $14.34 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
Progesterone is a type of hormone (progestin).
Compared with South Carolina prescribers
Dr. Knobel wrote 11 prescriptions for Progesterone, about 36% as often as the typical South Carolina prescriber of it (30). Medicare paid $61.88 per fill, versus $38.09 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 South Carolina prescribers
Dr. Knobel wrote 11 prescriptions for Promethazine Hcl, about half as often as the typical South Carolina prescriber of it (25). Medicare paid $8.60 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 muscle spasms caused by certain conditions (such as multiple sclerosis, spinal cord injury).
Compared with South Carolina prescribers
Dr. Knobel wrote 11 prescriptions for Tizanidine Hcl, about 23% as often as the typical South Carolina prescriber of it (48). Medicare paid $11.18 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.
Questions about Dr. Knobel’s prescriptions
What does Dr. Knobel prescribe most?
In 2024 Medicare Part D data, Dr. Knobel's most prescribed medications were Atorvastatin Calcium (293), Rosuvastatin Calcium (185) and Levothyroxine Sodium (181).
How does Dr. Knobel's prescribing compare with other South Carolina prescribers?
Of the 92 medications with a state comparison, Dr. Knobel prescribes 15 more often than the typical South Carolina prescriber, 19 about as often and 58 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Knobel 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 South Carolina 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.
