DR. PHYLLIS MEI HUI KWOK MD
Prescription History 1629068671
Internal Medicine in Bronxville, NY
What does Dr. Kwok prescribe?
In 2024, Dr. Kwok wrote 2,481 Medicare prescriptions for 69 medications. The most prescribed was Atorvastatin Calcium, with 221 prescriptions for 85 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. Kwok prescribes.
Medications 69 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 New York 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 New York prescribers
Dr. Kwok wrote 221 prescriptions for Atorvastatin Calcium, about as often as the typical New York prescriber of it (195). Medicare paid $9.18 per fill, versus $10.41 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
Amlodipine is used with or without other medications to treat high blood pressure.
Compared with New York prescribers
Dr. Kwok wrote 177 prescriptions for Amlodipine Besylate, about 1.2 times as often as the typical New York prescriber of it (151). Medicare paid $5.06 per fill, versus $6.16 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
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 New York prescribers
Dr. Kwok wrote 144 prescriptions for Rosuvastatin Calcium, about 1.2 times as often as the typical New York prescriber of it (124). Medicare paid $13.10 per fill, versus $14.37 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
Levothyroxine is used to treat an underactive thyroid (hypothyroidism).
Compared with New York prescribers
Dr. Kwok wrote 137 prescriptions for Levothyroxine Sodium, about as often as the typical New York prescriber of it (133). Medicare paid $9.73 per fill, versus $13.15 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
Losartan is used to treat high blood pressure (hypertension) and to help protect the kidneys from damage due to diabetes.
Compared with New York prescribers
Dr. Kwok wrote 92 prescriptions for Losartan Potassium, about 81% as often as the typical New York prescriber of it (113). Medicare paid $6.07 per fill, versus $9.47 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
This medication is used to treat high blood pressure.
Compared with New York prescribers
Dr. Kwok wrote 91 prescriptions for Hydrochlorothiazide, about 1.3 times as often as the typical New York prescriber of it (68). Medicare paid $5.39 per fill, versus $4.36 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
Lisinopril is used to treat high blood pressure.
Compared with New York prescribers
Dr. Kwok wrote 79 prescriptions for Lisinopril, about 85% as often as the typical New York prescriber of it (93). Medicare paid $8.12 per fill, versus $6.94 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 medication is a beta-blocker used to treat chest pain (angina), heart failure, and high blood pressure.
Compared with New York prescribers
Dr. Kwok wrote 63 prescriptions for Metoprolol Succinate, about half as often as the typical New York prescriber of it (126). Medicare paid $13.30 per fill, versus $14.99 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
Gabapentin is used with other medications to prevent and control seizures.
Compared with New York prescribers
Dr. Kwok wrote 61 prescriptions for Gabapentin, about 74% as often as the typical New York prescriber of it (82). Medicare paid $14.37 per fill, versus $12.77 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
Levothyroxine is used to treat an underactive thyroid (hypothyroidism).
Compared with New York prescribers
Dr. Kwok wrote 53 prescriptions for Synthroid, about as often as the typical New York prescriber of it (50). Medicare paid $60.85 per fill, versus $69.95 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with New York prescribers
Dr. Kwok wrote 51 prescriptions for Metformin Hcl, about half as often as the typical New York prescriber of it (98). Medicare paid $12.81 per fill, versus $10.10 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
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 New York prescribers
Dr. Kwok wrote 51 prescriptions for Simvastatin, about 70% as often as the typical New York prescriber of it (73). Medicare paid $10.72 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
This medication is used to treat certain mental/mood disorders (such as depression, anxiety).
Compared with New York prescribers
Dr. Kwok wrote 50 prescriptions for Escitalopram Oxalate, about 87% as often as the typical New York prescriber of it (58). Medicare paid $12.59 per fill, versus $10.03 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
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 New York prescribers
Dr. Kwok wrote 50 prescriptions for Famotidine, about 73% as often as the typical New York prescriber of it (69). Medicare paid $12.64 per fill, versus $13.04 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
Enalapril is used to treat high blood pressure.
Compared with New York prescribers
Dr. Kwok wrote 43 prescriptions for Enalapril Maleate, about 1.3 times as often as the typical New York prescriber of it (33). Medicare paid $11.63 per fill, versus $15.82 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
Omeprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers).
Compared with New York prescribers
Dr. Kwok wrote 43 prescriptions for Omeprazole, about half as often as the typical New York prescriber of it (99). Medicare paid $10.34 per fill, versus $11.48 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
Pantoprazole is used to treat certain stomach and esophagus problems (such as acid reflux).
Compared with New York prescribers
Dr. Kwok wrote 43 prescriptions for Pantoprazole Sodium, about 61% as often as the typical New York prescriber of it (70). Medicare paid $7.82 per fill, versus $11.79 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
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 New York prescribers
Dr. Kwok wrote 43 prescriptions for Pravastatin Sodium, about as often as the typical New York prescriber of it (42). Medicare paid $12.83 per fill, versus $13.78 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
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 New York prescribers
Dr. Kwok wrote 42 prescriptions for Eliquis, about half as often as the typical New York prescriber of it (86). Medicare paid $1,368.02 per fill, versus $874.81 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
Allopurinol is used to treat gout and certain types of kidney stones.
Compared with New York prescribers
Dr. Kwok wrote 38 prescriptions for Allopurinol, about 83% as often as the typical New York prescriber of it (46). Medicare paid $8.76 per fill, versus $10.29 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 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 New York prescribers
Dr. Kwok wrote 38 prescriptions for Sertraline Hcl, about 61% as often as the typical New York prescriber of it (63). Medicare paid $7.42 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
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with New York prescribers
Dr. Kwok wrote 36 prescriptions for Metformin Hcl Er, about 62% as often as the typical New York prescriber of it (58). Medicare paid $10.25 per fill, versus $10.86 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Tamsulosin is used by men to treat the symptoms of an enlarged prostate (benign prostatic hyperplasia-BPH).
Compared with New York prescribers
Dr. Kwok wrote 33 prescriptions for Tamsulosin Hcl, about 34% as often as the typical New York prescriber of it (97). Medicare paid $10.36 per fill, versus $14.09 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
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 New York prescribers
Dr. Kwok wrote 31 prescriptions for Furosemide, about half as often as the typical New York prescriber of it (70). Medicare paid $4.15 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
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 New York prescribers
Dr. Kwok wrote 30 prescriptions for Albuterol Sulfate Hfa, about 41% as often as the typical New York prescriber of it (74). Medicare paid $27.85 per fill, versus $33.48 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
Sitagliptin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with New York prescribers
Dr. Kwok wrote 29 prescriptions for Januvia, about 62% as often as the typical New York prescriber of it (47). Medicare paid $955.77 per fill, versus $893.24 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
Alprazolam is used to treat anxiety and panic disorders.
Compared with New York prescribers
Dr. Kwok wrote 28 prescriptions for Alprazolam, about half as often as the typical New York prescriber of it (56). Medicare paid $3.79 per fill, versus $6.31 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with New York prescribers
Dr. Kwok wrote 27 prescriptions for Bupropion Xl, about 67% as often as the typical New York prescriber of it (40). Medicare paid $41.16 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
Valsartan is used to treat high blood pressure and heart failure.
Compared with New York prescribers
Dr. Kwok wrote 26 prescriptions for Valsartan, about 64% as often as the typical New York prescriber of it (41). Medicare paid $23.73 per fill, versus $26.15 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as schizophrenia, depression).
Compared with New York prescribers
Dr. Kwok wrote 25 prescriptions for Rexulti, about 71% as often as the typical New York prescriber of it (35). Medicare paid $1,527.08 per fill, versus $1,362.09 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
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 New York prescribers
Dr. Kwok wrote 23 prescriptions for Fluticasone Propionate, about 37% as often as the typical New York prescriber of it (62). Medicare paid $11.07 per fill, versus $12.76 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
This medication is used to treat certain mental/mood disorders (such as depression, panic attacks, obsessive compulsive disorder).
Compared with New York prescribers
Dr. Kwok wrote 22 prescriptions for Fluoxetine Hcl, about half as often as the typical New York prescriber of it (39). Medicare paid $14.11 per fill, versus $10.50 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 anxiety.
Compared with New York prescribers
Dr. Kwok wrote 22 prescriptions for Lorazepam, about half as often as the typical New York prescriber of it (39). Medicare paid $5.10 per fill, versus $7.68 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
Montelukast is used to control and prevent symptoms caused by asthma (such as wheezing and shortness of breath).
Compared with New York prescribers
Dr. Kwok wrote 22 prescriptions for Montelukast Sodium, about 38% as often as the typical New York prescriber of it (57). Medicare paid $9.11 per fill, versus $9.83 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 medication is used to treat depression.
Compared with New York prescribers
Dr. Kwok wrote 22 prescriptions for Trazodone Hcl, about 38% as often as the typical New York prescriber of it (57). Medicare paid $8.69 per fill, versus $7.91 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
Empagliflozin is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with New York prescribers
Dr. Kwok wrote 19 prescriptions for Jardiance, about 31% as often as the typical New York prescriber of it (61). Medicare paid $1,046.30 per fill, versus $1,011.66 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Ezetimibe is used along with a low cholesterol/low fat diet and exercise to help lower cholesterol in the blood.
Compared with New York prescribers
Dr. Kwok wrote 18 prescriptions for Ezetimibe, about 33% as often as the typical New York prescriber of it (54). Medicare paid $55.72 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
Clonazepam is used to prevent and control seizures.
Compared with New York prescribers
Dr. Kwok wrote 17 prescriptions for Clonazepam, about 34% as often as the typical New York prescriber of it (51). Medicare paid $15.25 per fill, versus $8.71 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 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 New York prescribers
Dr. Kwok wrote 17 prescriptions for Fluticasone-Salmeterol, about half as often as the typical New York prescriber of it (30). Medicare paid $67.94 per fill, versus $155.70 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat high blood pressure.
Compared with New York prescribers
Dr. Kwok wrote 17 prescriptions for Lisinopril-Hydrochlorothiazide, about half as often as the typical New York prescriber of it (33). Medicare paid $4.98 per fill, versus $8.15 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat skin conditions such as eczema, psoriasis, allergies, and rash.
Compared with New York prescribers
Dr. Kwok wrote 17 prescriptions for Mometasone Furoate, about 39% as often as the typical New York prescriber of it (44). Medicare paid $27.45 per fill, versus $40.16 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
Tirzepatide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with New York prescribers
Dr. Kwok wrote 17 prescriptions for Mounjaro, about 31% as often as the typical New York prescriber of it (54). Medicare paid $967.64 per fill, versus $1,279.00 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
Nadolol is used alone or with other medications to treat high blood pressure (hypertension) and to prevent chest pain (angina).
Compared with New York prescribers
Dr. Kwok wrote 17 prescriptions for Nadolol, about 79% as often as the typical New York prescriber of it (21). Medicare paid $56.25 per fill, versus $55.08 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
This medication is an antibiotic used to treat bladder infections (acute cystitis).
Compared with New York prescribers
Dr. Kwok wrote 17 prescriptions for Nitrofurantoin Mono-Macro, about 67% as often as the typical New York prescriber of it (25). Medicare paid $11.77 per fill, versus $13.08 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
This medication is used alone or with other medications to treat Parkinson's disease.
Compared with New York prescribers
Dr. Kwok wrote 17 prescriptions for Ropinirole Hcl, about 63% as often as the typical New York prescriber of it (27). Medicare paid $4.31 per fill, versus $16.15 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
Zolpidem is used for a short time to treat a certain sleep problem (insomnia) in adults.
Compared with New York prescribers
Dr. Kwok wrote 17 prescriptions for Zolpidem Tartrate, about 32% as often as the typical New York prescriber of it (54). Medicare paid $6.21 per fill, versus $5.43 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
Atenolol is used with or without other medications to treat high blood pressure (hypertension).
Compared with New York prescribers
Dr. Kwok wrote 16 prescriptions for Atenolol, about 38% as often as the typical New York prescriber of it (42). Medicare paid $7.48 per fill, versus $7.92 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
Metoprolol is used with or without other medications to treat high blood pressure (hypertension).
Compared with New York prescribers
Dr. Kwok wrote 16 prescriptions for Metoprolol Tartrate, about 27% as often as the typical New York prescriber of it (59). Medicare paid $9.25 per fill, versus $6.87 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
Amoxicillin/clavulanic acid is a combination penicillin-type antibiotic used to treat a wide variety of bacterial infections.
Compared with New York prescribers
Dr. Kwok wrote 15 prescriptions for Amoxicillin-Clavulanate Potass, about half as often as the typical New York prescriber of it (28). Medicare paid $9.63 per fill, versus $8.73 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
Donepezil is used to treat confusion (dementia) related to Alzheimer's disease.
Compared with New York prescribers
Dr. Kwok wrote 15 prescriptions for Donepezil Hcl, about 22% as often as the typical New York prescriber of it (68). Medicare paid $18.64 per fill, versus $10.95 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Semaglutide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with New York prescribers
Dr. Kwok wrote 15 prescriptions for Ozempic, about 24% as often as the typical New York prescriber of it (63). Medicare paid $1,792.05 per fill, versus $1,284.03 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 New York prescribers
Dr. Kwok wrote 14 prescriptions for Bupropion Hcl, about 64% as often as the typical New York prescriber of it (22). Medicare paid $41.99 per fill, versus $18.89 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with New York prescribers
Dr. Kwok wrote 14 prescriptions for Citalopram Hbr, about 39% as often as the typical New York prescriber of it (36). Medicare paid $5.24 per fill, versus $7.11 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
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 New York prescribers
Dr. Kwok wrote 14 prescriptions for Clopidogrel, about 25% as often as the typical New York prescriber of it (56). Medicare paid $15.61 per fill, versus $10.34 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
Cyclobenzaprine is used short-term to treat muscle spasms.
Compared with New York prescribers
Dr. Kwok wrote 14 prescriptions for Cyclobenzaprine Hcl, about 40% as often as the typical New York prescriber of it (35). Medicare paid $11.43 per fill, versus $7.82 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Doxazosin is used alone or with other drugs to treat high blood pressure (hypertension).
Compared with New York prescribers
Dr. Kwok wrote 14 prescriptions for Doxazosin Mesylate, about half as often as the typical New York prescriber of it (29). Medicare paid $17.38 per fill, versus $16.56 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
Glimepiride is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with New York prescribers
Dr. Kwok wrote 14 prescriptions for Glimepiride, about 32% as often as the typical New York prescriber of it (43). Medicare paid $15.77 per fill, versus $9.14 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 combination of nirmatrelvir and ritonavir is used to treat coronavirus disease (COVID-19) in people who have mild to moderate symptoms and have a high risk for COVID-19 complications.
Compared with New York prescribers
Dr. Kwok wrote 13 prescriptions for Paxlovid, about 68% as often as the typical New York prescriber of it (19). Medicare paid $0.00 per fill, versus $60.73 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
Ramipril is used to treat high blood pressure (hypertension).
Compared with New York prescribers
Dr. Kwok wrote 13 prescriptions for Ramipril, about 41% as often as the typical New York prescriber of it (32). Medicare paid $4.45 per fill, versus $11.08 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
This product is used to control and prevent symptoms (such as wheezing and shortness of breath) caused by asthma and ongoing lung disease (chronic obstructive pulmonary disease-COPD, which includes chronic bronchitis and emphysema).
Compared with New York prescribers
Dr. Kwok wrote 13 prescriptions for Trelegy Ellipta, about 21% as often as the typical New York prescriber of it (61). Medicare paid $658.95 per fill, versus $832.82 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
Dulaglutide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with New York prescribers
Dr. Kwok wrote 13 prescriptions for Trulicity, about 31% as often as the typical New York prescriber of it (42). Medicare paid $1,402.08 per fill, versus $1,286.03 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
Armodafinil reduces extreme sleepiness due to narcolepsy and other sleep disorders, such as periods of stopped breathing during sleep (obstructive sleep apnea).
Compared with New York prescribers
Dr. Kwok wrote 12 prescriptions for Armodafinil, about 63% as often as the typical New York prescriber of it (19). Medicare paid $7.65 per fill, versus $45.97 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
This medication is a mineral supplement used to treat or prevent low amounts of potassium in the blood.
Compared with New York prescribers
Dr. Kwok wrote 12 prescriptions for Potassium Chloride, about 26% as often as the typical New York prescriber of it (46). Medicare paid $25.55 per fill, versus $22.91 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
Semaglutide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with New York prescribers
Dr. Kwok wrote 12 prescriptions for Rybelsus, about 39% as often as the typical New York prescriber of it (31). Medicare paid $2,267.01 per fill, versus $1,456.55 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Rivaroxaban is used to prevent blood clots from forming due to a certain irregular heartbeat (atrial fibrillation) or after hip or knee replacement surgery.
Compared with New York prescribers
Dr. Kwok wrote 12 prescriptions for Xarelto, about 28% as often as the typical New York prescriber of it (44). Medicare paid $866.32 per fill, versus $942.48 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 certain mental/mood disorders (such as depression, anxiety).
Compared with New York prescribers
Dr. Kwok wrote 11 prescriptions for Duloxetine Hcl, about 23% as often as the typical New York prescriber of it (47). Medicare paid $36.29 per fill, versus $23.60 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 help relieve moderate to severe pain.
Compared with New York prescribers
Dr. Kwok wrote 11 prescriptions for Hydromorphone Hcl, about 41% as often as the typical New York prescriber of it (27). Medicare paid $8.40 per fill, versus $22.30 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
Olmesartan is used to treat high blood pressure (hypertension).
Compared with New York prescribers
Dr. Kwok wrote 11 prescriptions for Olmesartan Medoxomil, about 26% as often as the typical New York prescriber of it (43). Medicare paid $26.64 per fill, versus $17.57 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
Valacyclovir is used to treat infections caused by certain types of viruses.
Compared with New York prescribers
Dr. Kwok wrote 11 prescriptions for Valacyclovir, about half as often as the typical New York prescriber of it (24). Medicare paid $34.49 per fill, versus $29.38 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. Kwok’s prescriptions
What does Dr. Kwok prescribe most?
In 2024 Medicare Part D data, Dr. Kwok's most prescribed medications were Atorvastatin Calcium (221), Amlodipine Besylate (177) and Rosuvastatin Calcium (144).
How does Dr. Kwok's prescribing compare with other New York prescribers?
Of the 69 medications with a state comparison, Dr. Kwok prescribes 2 more often than the typical New York prescriber, 11 about as often and 56 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Kwok 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 New York 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.
