Sarah Karpen
Physician Assistant · San Diego, CANPI 1376992354
Payments from drug & device makers
Across 141 payments — averaging $158.00 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Amgen$12K
- Takeda Pharmaceuticals U.S.A., Inc.$8K
- Merck$937
- AstraZeneca$696
- Eisai Inc.$302
- GSK$211
- plus $470 from 9 others
What the payments were for
- Consulting fees$9,84044%
- Speaking & faculty fees$6,18828%
- Travel & lodging$2,93313%
- Food & beverage$3,10514%
- Education$2111%
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 |
|---|---|---|
| Amgen | 26 | $11,550 |
| Takeda Pharmaceuticals U.S.A., Inc. | 7 | $8,109 |
| Merck | 42 | $937 |
| AstraZeneca | 25 | $696 |
| Eisai Inc. | 14 | $302 |
| GSK | 8 | $211 |
| Astellas Pharma US Inc | 2 | $116 |
| Coherus Oncology, Inc. | 4 | $92 |
| Foundation Medicine, Inc. | 3 | $69 |
| Myriad Genetic Laboratories, Inc. | 3 | $62 |
| AbbVie | 3 | $48 |
| Immunogen, Inc. | 1 | $28 |
| Baxter Healthcare | 1 | $19 |
| Genmab U.S., Inc. | 1 | $19 |
| Myovant Sciences Inc. | 1 | $16 |
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.
- IMDELLTRA (AMG 757)$10,658
- ALUNBRIG$8,042
- LYNPARZA$126
How this compares
$22,277 in reported general payments places this provider in the 95th percentile of 10,423 physician assistant providers in California.
Other physician assistant in San Diego
- Jeremy AdlerSan Diego$82K
- Anne DenslowSan Diego$43K
- Kathryn SmileySan Diego$33K
- John QuigleyDowney$2.9M
- Andrea NguyenIrvine$1M
- Mikhail AlperMadera$889K
- Erin JensenUpland$716K
- Franklin ClineSacramento$458K
- Carla CrespoMarina del Rey$297K
- Katherine OsakiEl Centro$274K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.