Inna Gisin, NP
Nurse Practitioner · Stanford, CANPI 1184124448
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $4,560 of the $5,110 with a category attached, or 89.3%. It is spread thinly across 33 manufacturers, the largest accounting for just 11.7% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2021 at $2,652 and has fallen 94.7% since, to $141 in 2025. Among nurse practitioner clinicians in CA with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 213 payments — averaging $23.99 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Johnson & Johnson$598
- Amgen$532
- Seagen Inc.$466
- Lilly USA, LLC$430
- Novartis$402
- Takeda Pharmaceuticals U.S.A., Inc.$310
- plus $2K from 27 others
What the payments were for
- Food & beverage$4,56089%
- Education$54911%
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 |
|---|---|---|
| Johnson & Johnson | 21 | $598 |
| Amgen | 19 | $532 |
| Seagen Inc. | 14 | $466 |
| Lilly USA, LLC | 21 | $430 |
| Novartis | 20 | $402 |
| Takeda Pharmaceuticals U.S.A., Inc. | 11 | $310 |
| AstraZeneca | 14 | $304 |
| Merck | 11 | $241 |
| Coherus Oncology, Inc. | 8 | $239 |
| GSK | 8 | $204 |
| Pfizer | 8 | $166 |
| Bristol Myers Squibb | 9 | $166 |
| Progenics Pharmaceuticals, Inc. | 3 | $139 |
| Gilead(2 entities) | 6 | $135 |
| Eisai Inc. | 6 | $121 |
| Incyte Corporation | 4 | $91 |
| AVEO Pharmaceuticals, Inc. | 4 | $82 |
| Daiichi Sankyo Inc. | 4 | $79 |
| E.r. Squibb & Sons, L.L.C. | 4 | $56 |
| Rigel Pharmaceuticals, Inc. | 2 | $44 |
| Bayer | 2 | $43 |
| Boehringer Ingelheim | 2 | $35 |
| Taiho Oncology, Inc. | 2 | $32 |
| Acrotech Biopharma Inc. | 1 | $27 |
| Karyopharm Therapeutics Inc. | 1 | $26 |
| Array Biopharma Inc | 1 | $24 |
| Regeneron Healthcare Solutions, Inc. | 1 | $21 |
| EMD Serono, Inc. | 1 | $18 |
| Epizyme, Inc. | 1 | $18 |
| Dova Pharmaceuticals | 1 | $17 |
| Servier Pharmaceuticals LLC | 1 | $17 |
| Myovant Sciences Inc. | 1 | $14 |
| AMAG Pharmaceuticals, Inc. | 1 | $14 |
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
$5,110 in reported general payments places this provider in the 95th percentile of 6,779 nurse practitioner 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 |
|---|---|---|
| XtandiEnzalutamide | 19 | $272,681 |
| Abiraterone Acetate | 45 | $91,682 |
| Prednisone | 69 | $271 |
| Tamsulosin Hcl | 17 | $214 |
| Dexamethasone | 13 | $128 |
| Gabapentin | 12 | $52 |
Paid to pharmacies, not to this prescriber.
Other nurse practitioner in Stanford
- Rhonda HewittStanford$917K
- Hamta ZareStanford$428K
- Theresa Mallick-SearleStanford$193K
- Martina SpeightStanford$170K
- Helen ShihStanford$104K
- Connie WolfordStanford$69K
- Michelle GapayStanford$37K
- Elaine JangStanford$32K
- Linda TrinhIrvine$884K
- Denise SinagaNorthridge$728K
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.