Jennifer Chen, MD
Family Medicine · San Francisco, CANPI 1619321304
Payments from drug & device makers
Across 275 payments — averaging $555.42 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Merck$141K
- Amgen$2K
- Gilead$1K
- GSK$1K
- E.r. Squibb & Sons, L.L.C.$883
- Novo Nordisk$737
- plus $5K from 29 others
What the payments were for
- Consulting fees$2252%
- Food & beverage$11,09397%
- Education$1101%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Merck | 9 | $141,466 |
| Amgen(2 entities) | 45 | $2,037 |
| Gilead | 29 | $1,398 |
| GSK | 14 | $1,089 |
| E.r. Squibb & Sons, L.L.C. | 35 | $883 |
| Novo Nordisk | 12 | $737 |
| AstraZeneca | 17 | $695 |
| Scilex Pharmaceuticals Inc. | 20 | $399 |
| Lilly USA, LLC | 8 | $332 |
| Bayer | 5 | $300 |
| Travere Therapeutics, Inc. | 3 | $275 |
| Viiv Healthcare Company | 3 | $273 |
| Johnson & Johnson(2 entities) | 6 | $248 |
| Dynavax Technologies Corporation | 10 | $246 |
| Edwards Lifesciences | 2 | $233 |
| Xeris Pharmaceuticals, Inc. | 10 | $223 |
| Pfizer | 10 | $212 |
| Insmed, Inc. | 5 | $177 |
| Agios Pharmaceuticals, Inc. | 2 | $174 |
| Stryker | 1 | $173 |
| Astellas Pharma US Inc | 4 | $163 |
| Viatris Specialty LLC | 2 | $155 |
| Cequr Corporation | 1 | $148 |
| Teva Pharmaceuticals USA, Inc. | 1 | $137 |
| Lexicon Pharmaceuticals, Inc. | 1 | $114 |
| Boehringer Ingelheim | 4 | $82 |
| Exact Sciences | 3 | $77 |
| Sanofi Pasteur Inc. | 2 | $70 |
| Kaleo, Inc. | 3 | $64 |
| Otsuka America Pharmaceutical, Inc. | 2 | $42 |
| Dexcom, Inc. | 2 | $42 |
| Vertex | 1 | $25 |
| Daiichi Sankyo Inc. | 1 | $19 |
| Modernatx, Inc. | 1 | $17 |
| Cranial Technologies, Inc | 1 | $15 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
How this compares
$152,740 in reported general payments places this provider in the 95th percentile of 10,533 family medicine providers in California.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| ArexvyRsvpref3 Antigen/As01e/Pf | 626 | $180,991 |
| JardianceEmpagliflozin | 108 | $178,118 |
| ProliaDenosumab | 105 | $168,518 |
| FarxigaDapagliflozin Propanediol | 98 | $144,760 |
| EliquisApixaban | 66 | $104,612 |
| VemlidyTenofovir Alafenamide | 58 | $83,468 |
| VascepaIcosapent Ethyl | 77 | $72,980 |
| ShingrixVaricella-Zoster Ge/As01b/Pf | 312 | $65,282 |
| TradjentaLinagliptin | 37 | $52,897 |
| JanuviaSitagliptin Phosphate | 24 | $35,250 |
| CreonLipase/Protease/Amylase | 21 | $28,484 |
| GemtesaVibegron | 16 | $15,422 |
| Entecavir | 43 | $11,379 |
| Fluticasone-SalmeterolFluticasone Propion/Salmeterol | 26 | $9,971 |
| Atorvastatin Calcium | 1,098 | $9,822 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| GSKArexvy, Shingrix | $1,089 | $246,273938 claims |
| Boehringer IngelheimJardiance, Tradjenta | $82 | $231,016145 claims |
| AmgenProlia | $2,037 | $168,518105 claims |
| AstraZenecaFarxiga | $695 | $144,76098 claims |
| PfizerEliquis | $212 | $104,61266 claims |
| GileadVemlidy | $1,398 | $83,46858 claims |
| MerckJanuvia | $141,466 | $35,25024 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 95th percentile of 10,533 family medicine providers in California.
Other family medicine in San Francisco
- Amina HaggagNorthridge$112.8M
- Steven ReynoldsLong Beach$53M
- Rizwana MohseniLake Forest$26.7M
- Daniel JohnsonSan Diego$15.7M
- Stacey LayleSan Diego$14.8M
- Apinya VutikullirdCypress$14.3M
- Hanid AudishSpring Valley$13.6M
- Augusto FocilOxnard$12.6M
- Jack VuLong Beach$10.1M
- Suzanne FussellOxnard$8.9M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.