Stephen Alan Sherwin, M.D.
NPI 1437461431ActiveIndividual· Internal Medicine, Medical Oncology· San Francisco, CA
Internal Medicine, Medical Oncology (M.D.) in San Francisco, California, licensed in CA, with an NPI issued in July 2010. Part D covered 35 prescriptions written in 2024, 100% of them generic. Neurocrine Biosciences, Inc. was the largest of 4 companies reporting payments in 2025, $875,572 in all, mostly consulting fees.
Overview
| NPI | 1437461431 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 7, 2010 |
| Last updated in NPPES | Jul 7, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | G41963 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Medical Oncology (CA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 35 · 75 30-day fills |
|---|---|
| Patients | 13 |
| Total drug cost | $76,061 |
| Generic share | 100% of claims |
Industry payments (Open Payments)
- 2025$875,572 · 77 payments from 4 companies
- 2024$903,995 · 64 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Neurocrine Biosciences, Inc. | $507,136 | 61 |
| Biogen, Inc. | $325,413 | 12 |
| Exelixis Inc. | $37,500 | 3 |
| Abbvie Inc. | $5,524 | 1 |
What the 2025 payments were for
- Consulting Fee$839,108 · 13 payments
- Travel and Lodging$28,616 · 41 payments
- Acquisitions$5,524 · 1 payment
- Food and Beverage$2,324 · 22 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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