AGNES NGAN TING LEUNG PA-C
Prescription History 1861024671
Physician Assistant in San Jose, CA
What does Agnes Leung prescribe?
In 2024, Agnes Leung wrote 1,646 Medicare prescriptions for 54 medications. The most prescribed was Atorvastatin Calcium, with 194 prescriptions for 112 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 Agnes Leung prescribes.
Medications 54 medications
Prescriptions filled under Medicare Part D in 2024. Select a medication to see what it is used for and how it compares with other California prescribers.
What it is used for
Atorvastatin is used along with a proper diet to help lower "bad" cholesterol and fats (such as LDL, triglycerides) and raise "good" cholesterol (HDL) in the blood.
Compared with California prescribers
Agnes Leung wrote 194 prescriptions for Atorvastatin Calcium, about as often as the typical California prescriber of it (202). Medicare paid $8.82 per fill, versus $10.47 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Amlodipine is used with or without other medications to treat high blood pressure.
Compared with California prescribers
Agnes Leung wrote 126 prescriptions for Amlodipine Besylate, about 89% as often as the typical California prescriber of it (141). Medicare paid $5.84 per fill, versus $7.08 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Levothyroxine is used to treat an underactive thyroid (hypothyroidism).
Compared with California prescribers
Agnes Leung wrote 104 prescriptions for Levothyroxine Sodium, about 83% as often as the typical California prescriber of it (125). Medicare paid $9.32 per fill, versus $13.30 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Losartan is used to treat high blood pressure (hypertension) and to help protect the kidneys from damage due to diabetes.
Compared with California prescribers
Agnes Leung wrote 76 prescriptions for Losartan Potassium, about 63% as often as the typical California prescriber of it (121). Medicare paid $7.69 per fill, versus $10.35 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Rosuvastatin is used along with a proper diet to help lower "bad" cholesterol and fats (such as LDL, triglycerides) and raise "good" cholesterol (HDL) in the blood.
Compared with California prescribers
Agnes Leung wrote 74 prescriptions for Rosuvastatin Calcium, about 73% as often as the typical California prescriber of it (101). Medicare paid $18.79 per fill, versus $15.64 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Lisinopril is used to treat high blood pressure.
Compared with California prescribers
Agnes Leung wrote 56 prescriptions for Lisinopril, about half as often as the typical California prescriber of it (98). Medicare paid $7.42 per fill, versus $8.30 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with California prescribers
Agnes Leung wrote 54 prescriptions for Metformin Hcl, about half as often as the typical California prescriber of it (100). Medicare paid $6.83 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
Tamsulosin is used by men to treat the symptoms of an enlarged prostate (benign prostatic hyperplasia-BPH).
Compared with California prescribers
Agnes Leung wrote 53 prescriptions for Tamsulosin Hcl, about 63% as often as the typical California prescriber of it (84). Medicare paid $17.42 per fill, versus $15.02 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Omeprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers).
Compared with California prescribers
Agnes Leung wrote 50 prescriptions for Omeprazole, about 64% as often as the typical California prescriber of it (78). Medicare paid $12.73 per fill, versus $11.26 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with California prescribers
Agnes Leung wrote 48 prescriptions for Trazodone Hcl, about 84% as often as the typical California prescriber of it (57). Medicare paid $6.99 per fill, versus $9.93 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This combination medication is used to relieve moderate to severe pain.
Compared with California prescribers
Agnes Leung wrote 43 prescriptions for Hydrocodone-Acetaminophen, about half as often as the typical California prescriber of it (76). Medicare paid $16.36 per fill, versus $21.39 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Gabapentin is used with other medications to prevent and control seizures.
Compared with California prescribers
Agnes Leung wrote 41 prescriptions for Gabapentin, about half as often as the typical California prescriber of it (80). Medicare paid $16.80 per fill, versus $15.63 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Fluticasone is used to relieve seasonal and year-round allergic and non-allergic nasal symptoms, such as stuffy/runny nose, itching, and sneezing.
Compared with California prescribers
Agnes Leung wrote 34 prescriptions for Fluticasone Propionate, about 68% as often as the typical California prescriber of it (50). Medicare paid $16.14 per fill, versus $15.10 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, panic attacks, obsessive compulsive disorder, post-traumatic stress disorder, social anxiety disorder).
Compared with California prescribers
Agnes Leung wrote 31 prescriptions for Sertraline Hcl, about 68% as often as the typical California prescriber of it (46). Medicare paid $7.19 per fill, versus $9.59 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat high blood pressure.
Compared with California prescribers
Agnes Leung wrote 30 prescriptions for Hydrochlorothiazide, about half as often as the typical California prescriber of it (62). Medicare paid $6.17 per fill, versus $5.71 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with California prescribers
Agnes Leung wrote 28 prescriptions for Bupropion Xl, about 80% as often as the typical California prescriber of it (35). Medicare paid $36.33 per fill, versus $25.68 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
Furosemide is used to reduce extra fluid in the body (edema) caused by conditions such as heart failure, liver disease, and kidney disease.
Compared with California prescribers
Agnes Leung wrote 26 prescriptions for Furosemide, about 40% as often as the typical California prescriber of it (64). Medicare paid $5.87 per fill, versus $6.39 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Pantoprazole is used to treat certain stomach and esophagus problems (such as acid reflux).
Compared with California prescribers
Agnes Leung wrote 24 prescriptions for Pantoprazole Sodium, about 37% as often as the typical California prescriber of it (65). Medicare paid $12.19 per fill, versus $13.87 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is a beta-blocker used to treat chest pain (angina), heart failure, and high blood pressure.
Compared with California prescribers
Agnes Leung wrote 23 prescriptions for Metoprolol Succinate, about 27% as often as the typical California prescriber of it (86). Medicare paid $9.78 per fill, versus $14.23 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
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 California prescribers
Agnes Leung wrote 23 prescriptions for Pravastatin Sodium, about 61% as often as the typical California prescriber of it (38). Medicare paid $8.11 per fill, versus $13.25 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
Zolpidem is used for a short time to treat a certain sleep problem (insomnia) in adults.
Compared with California prescribers
Agnes Leung wrote 23 prescriptions for Zolpidem Tartrate, about half as often as the typical California prescriber of it (45). Medicare paid $7.44 per fill, versus $6.02 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Albuterol (also known as salbutamol) is used to prevent and treat wheezing and shortness of breath caused by breathing problems (such as asthma, chronic obstructive pulmonary disease).
Compared with California prescribers
Agnes Leung wrote 21 prescriptions for Albuterol Sulfate Hfa, about 36% as often as the typical California prescriber of it (58). Medicare paid $19.08 per fill, versus $28.70 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with California prescribers
Agnes Leung wrote 21 prescriptions for Metformin Hcl Er, about 38% as often as the typical California prescriber of it (55). Medicare paid $7.24 per fill, versus $9.99 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Allopurinol is used to treat gout and certain types of kidney stones.
Compared with California prescribers
Agnes Leung wrote 20 prescriptions for Allopurinol, about half as often as the typical California prescriber of it (44). Medicare paid $3.83 per fill, versus $10.39 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with California prescribers
Agnes Leung wrote 20 prescriptions for Citalopram Hbr, about 68% as often as the typical California prescriber of it (30). Medicare paid $4.40 per fill, versus $8.24 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat anxiety.
Compared with California prescribers
Agnes Leung wrote 20 prescriptions for Lorazepam, about half as often as the typical California prescriber of it (43). Medicare paid $2.46 per fill, versus $6.52 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
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 California prescribers
Agnes Leung wrote 20 prescriptions for Paxlovid, about 83% as often as the typical California prescriber of it (24). Medicare paid $0.00 per fill, versus $42.82 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 California prescribers
Agnes Leung wrote 19 prescriptions for Duloxetine Hcl, about half as often as the typical California prescriber of it (40). Medicare paid $55.28 per fill, versus $24.72 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Simvastatin is used along with a proper diet to help lower "bad" cholesterol and fats (such as LDL, triglycerides) and raise "good" cholesterol (HDL) in the blood.
Compared with California prescribers
Agnes Leung wrote 18 prescriptions for Simvastatin, about 28% as often as the typical California prescriber of it (63). Medicare paid $8.58 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 medication is used to treat certain mental/mood disorders (such as depression, anxiety).
Compared with California prescribers
Agnes Leung wrote 17 prescriptions for Escitalopram Oxalate, about 35% as often as the typical California prescriber of it (48). Medicare paid $16.63 per fill, versus $11.14 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Famotidine is used to treat ulcers of the stomach and intestines and to prevent intestinal ulcers from coming back after they have healed.
Compared with California prescribers
Agnes Leung wrote 17 prescriptions for Famotidine, about 32% as often as the typical California prescriber of it (54). Medicare paid $20.32 per fill, versus $12.66 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication contains 2 medicines: buprenorphine and naloxone.
Compared with California prescribers
Agnes Leung wrote 16 prescriptions for Buprenorphine-Naloxone, about 38% as often as the typical California prescriber of it (42). Medicare paid $151.52 per fill, versus $145.54 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
Empagliflozin is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with California prescribers
Agnes Leung wrote 16 prescriptions for Jardiance, about 28% as often as the typical California prescriber of it (58). Medicare paid $1,338.26 per fill, versus $933.82 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
See also Warning section.
Compared with California prescribers
Agnes Leung wrote 15 prescriptions for Diclofenac Sodium, about 32% as often as the typical California prescriber of it (47). Medicare paid $11.76 per fill, versus $107.23 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Ibuprofen is used to relieve pain from various conditions such as headache, dental pain, menstrual cramps, muscle aches, or arthritis.
Compared with California prescribers
Agnes Leung wrote 14 prescriptions for Ibuprofen, about 33% as often as the typical California prescriber of it (42). Medicare paid $10.97 per fill, versus $6.71 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Metoprolol is used with or without other medications to treat high blood pressure (hypertension).
Compared with California prescribers
Agnes Leung wrote 14 prescriptions for Metoprolol Tartrate, about 25% as often as the typical California prescriber of it (57). Medicare paid $10.82 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
See also Warning section.
Compared with California prescribers
Agnes Leung wrote 14 prescriptions for Naproxen, about half as often as the typical California prescriber of it (29). Medicare paid $7.73 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
Alendronate is used to prevent and treat certain types of bone loss (osteoporosis) in adults.
Compared with California prescribers
Agnes Leung wrote 13 prescriptions for Alendronate Sodium, about 21% as often as the typical California prescriber of it (61). Medicare paid $8.44 per fill, versus $9.65 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This product is used to treat and prevent symptoms (wheezing and shortness of breath) caused by ongoing lung disease (chronic obstructive pulmonary disease-COPD, which includes bronchitis and emphysema).
Compared with California prescribers
Agnes Leung wrote 13 prescriptions for Combivent Respimat, about 61% as often as the typical California prescriber of it (21). Medicare paid $478.97 per fill, versus $597.87 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 California prescribers
Agnes Leung wrote 13 prescriptions for Losartan-Hydrochlorothiazide, about 33% as often as the typical California prescriber of it (39). Medicare paid $22.29 per fill, versus $13.09 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
Meloxicam is used to treat arthritis.
Compared with California prescribers
Agnes Leung wrote 13 prescriptions for Meloxicam, about 26% as often as the typical California prescriber of it (50). Medicare paid $4.76 per fill, versus $4.39 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is an antibiotic used to treat bladder infections (acute cystitis).
Compared with California prescribers
Agnes Leung wrote 13 prescriptions for Nitrofurantoin Mono-Macro, about half as often as the typical California prescriber of it (26). Medicare paid $10.84 per fill, versus $13.21 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Semaglutide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with California prescribers
Agnes Leung wrote 13 prescriptions for Ozempic, about 23% as often as the typical California prescriber of it (56). Medicare paid $1,315.72 per fill, versus $1,102.15 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Amoxicillin/clavulanic acid is a combination penicillin-type antibiotic used to treat a wide variety of bacterial infections.
Compared with California prescribers
Agnes Leung wrote 12 prescriptions for Amoxicillin-Clavulanate Potass, about half as often as the typical California prescriber of it (26). Medicare paid $8.35 per fill, versus $9.18 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
Cyclobenzaprine is used short-term to treat muscle spasms.
Compared with California prescribers
Agnes Leung wrote 12 prescriptions for Cyclobenzaprine Hcl, about 37% as often as the typical California prescriber of it (32). Medicare paid $9.41 per fill, versus $8.89 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Montelukast is used to control and prevent symptoms caused by asthma (such as wheezing and shortness of breath).
Compared with California prescribers
Agnes Leung wrote 12 prescriptions for Montelukast Sodium, about 25% as often as the typical California prescriber of it (49). Medicare paid $24.38 per fill, versus $10.71 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to help relieve moderate to severe pain.
Compared with California prescribers
Agnes Leung wrote 12 prescriptions for Oxycodone Hcl, about 28% as often as the typical California prescriber of it (43). Medicare paid $12.91 per fill, versus $16.05 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Benazepril is used to treat high blood pressure (hypertension).
Compared with California prescribers
Agnes Leung wrote 11 prescriptions for Benazepril Hcl, about 32% as often as the typical California prescriber of it (35). Medicare paid $7.71 per fill, versus $11.17 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is a nonsteroidal anti-inflammatory drug (NSAID), specifically a COX-2 inhibitor, which relieves pain and swelling (inflammation).
Compared with California prescribers
Agnes Leung wrote 11 prescriptions for Celecoxib, about 24% as often as the typical California prescriber of it (46). Medicare paid $26.24 per fill, versus $32.27 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Finasteride is used to shrink an enlarged prostate (benign prostatic hyperplasia or BPH) in adult men.
Compared with California prescribers
Agnes Leung wrote 11 prescriptions for Finasteride, about 20% as often as the typical California prescriber of it (56). Medicare paid $14.90 per fill, versus $13.71 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
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 California prescribers
Agnes Leung wrote 11 prescriptions for Lovastatin, about 37% as often as the typical California prescriber of it (30). Medicare paid $14.82 per fill, versus $10.38 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with California prescribers
Agnes Leung wrote 11 prescriptions for Mirtazapine, about 27% as often as the typical California prescriber of it (40). Medicare paid $18.00 per fill, versus $19.05 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Tirzepatide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with California prescribers
Agnes Leung wrote 11 prescriptions for Mounjaro, about 25% as often as the typical California prescriber of it (45). Medicare paid $971.10 per fill, versus $1,191.18 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
See also Warning section.
Compared with California prescribers
Agnes Leung wrote 11 prescriptions for Tramadol Hcl, about 25% as often as the typical California prescriber of it (44). Medicare paid $3.62 per fill, versus $6.24 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Questions about Agnes Leung’s prescriptions
What does Agnes Leung prescribe most?
In 2024 Medicare Part D data, Agnes Leung's most prescribed medications were Atorvastatin Calcium (194), Amlodipine Besylate (126) and Levothyroxine Sodium (104).
How does Agnes Leung's prescribing compare with other California prescribers?
Of the 54 medications with a state comparison, Agnes Leung prescribes 6 about as often than the typical California prescriber and 48 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Agnes Leung prescribes?
No. It covers prescriptions filled by people with Medicare Part D drug coverage in 2024, and CMS leaves out any medication with fewer than 11 prescriptions.
About this data
This page shows one provider’s slice of public Medicare files. NPI Profile does not receive prescriptions or patient records.
| Source | What it provides here | Data year |
|---|---|---|
| CMS Medicare Part D Prescribers by Provider and Drug | Each medication, prescriptions, patients, 30-day fills, days of medication and cost. State comparisons average the California prescribers of the same medication and form, where at least five wrote it. | 2024 (released 2026, the most recent available) |
| CMS Medicare Part D Drug Spending Dashboard | What each medication is used for. | 2024 |
- Only prescriptions filled by people with Medicare Part D drug coverage are counted. Private insurance, Medicaid and cash purchases are not.
- CMS leaves out medications with fewer than 11 prescriptions and hides patient counts under 11.
- Cost per fill is what the plan and the patient paid the pharmacy together, not what you pay at the counter.
- Medication descriptions are summaries from CMS. They are not medical advice; ask a health care professional about any medication.
