DR. JENNIFER KELLY YANG PHARM.D.
Prescription History 1356655708
Pharmacist in Daly City, CA
What does Dr. Yang prescribe?
In 2024, Dr. Yang wrote 719 Medicare prescriptions for 16 medications. The most prescribed was Metformin Hcl, with 134 prescriptions for 59 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. Yang prescribes.
Medications 16 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
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with California prescribers
Dr. Yang wrote 134 prescriptions for Metformin Hcl, about 1.3 times as often as the typical California prescriber of it (100). Medicare paid $12.79 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
Glipizide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with California prescribers
Dr. Yang wrote 93 prescriptions for Glipizide, about 1.9 times as often as the typical California prescriber of it (49). Medicare paid $13.94 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
Atorvastatin is used along with a proper diet to help lower "bad" cholesterol and fats (such as LDL, triglycerides) and raise "good" cholesterol (HDL) in the blood.
Compared with California prescribers
Dr. Yang wrote 83 prescriptions for Atorvastatin Calcium, about 41% as often as the typical California prescriber of it (202). Medicare paid $13.37 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
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with California prescribers
Dr. Yang wrote 59 prescriptions for Metformin Hcl Er, about as often as the typical California prescriber of it (55). Medicare paid $9.95 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
Glipizide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with California prescribers
Dr. Yang wrote 48 prescriptions for Glipizide Er, about 1.6 times as often as the typical California prescriber of it (30). Medicare paid $27.79 per fill, versus $17.99 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Insulin isophane is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with California prescribers
Dr. Yang wrote 42 prescriptions for Humulin N, about 1.4 times as often as the typical California prescriber of it (31). Medicare paid $194.24 per fill, versus $167.09 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
Semaglutide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with California prescribers
Dr. Yang wrote 39 prescriptions for Ozempic, about 69% as often as the typical California prescriber of it (56). Medicare paid $738.75 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.
Compared with California prescribers
Dr. Yang wrote 35 prescriptions for Ultra-Fine Nano Pen Needle, about 1.3 times as often as the typical California prescriber of it (26). Medicare paid $23.35 per fill, versus $57.26 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
Insulin glargine is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with California prescribers
Dr. Yang wrote 33 prescriptions for Insulin Glargine-Yfgn, about as often as the typical California prescriber of it (30). Medicare paid $182.13 per fill, versus $113.40 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Empagliflozin is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with California prescribers
Dr. Yang wrote 31 prescriptions for Jardiance, about half as often as the typical California prescriber of it (58). Medicare paid $541.07 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.
Compared with California prescribers
Dr. Yang wrote 29 prescriptions for Veo Insulin Syringe, about 1.4 times as often as the typical California prescriber of it (21). Medicare paid $32.24 per fill, versus $24.06 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Compared with California prescribers
Dr. Yang wrote 28 prescriptions for Veo Insulin Syringe, about 1.2 times as often as the typical California prescriber of it (24). Medicare paid $26.77 per fill, versus $23.49 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
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 California prescribers
Dr. Yang wrote 20 prescriptions for Pioglitazone Hcl, about half as often as the typical California prescriber of it (41). Medicare paid $12.28 per fill, versus $13.99 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
Simvastatin is used along with a proper diet to help lower "bad" cholesterol and fats (such as LDL, triglycerides) and raise "good" cholesterol (HDL) in the blood.
Compared with California prescribers
Dr. Yang wrote 18 prescriptions for Simvastatin, about 28% as often as the typical California prescriber of it (63). Medicare paid $11.67 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
Insulin isophane is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with California prescribers
Dr. Yang wrote 14 prescriptions for Humulin N Kwikpen, about half as often as the typical California prescriber of it (27). Medicare paid $219.16 per fill, versus $176.99 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Insulin regular is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with California prescribers
Dr. Yang wrote 13 prescriptions for Humulin R, about half as often as the typical California prescriber of it (26). Medicare paid $207.05 per fill, versus $106.74 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. Yang’s prescriptions
What does Dr. Yang prescribe most?
In 2024 Medicare Part D data, Dr. Yang's most prescribed medications were Metformin Hcl (134), Glipizide (93) and Atorvastatin Calcium (83).
How does Dr. Yang's prescribing compare with other California prescribers?
Of the 16 medications with a state comparison, Dr. Yang prescribes 6 more often than the typical California prescriber, 3 about as often and 7 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Yang 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.
