Eric Christopher Buxton, M.D.
NPI 1134210362ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· San Francisco, CA
Internal Medicine, Endocrinology, Diabetes & Metabolism (M.D.) in San Francisco, California, trained at Columbia University College of Physicians and Surgeons (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $2,497,130 for 6,330 claims, against $299,462 paid for services in 2024. Antares Pharma, Inc. was the largest of 23 companies reporting payments in 2025, $2,097 in all, mostly food and beverage.
Overview
| NPI | 1134210362 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 26, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | A78113 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Endocrinology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 824 |
|---|---|
| Services billed | 10,330 across 11 procedure codes |
| Paid by Medicare | $299,462 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,330 · 14,815 30-day fills |
|---|---|
| Patients | 705 |
| Total drug cost | $2,497,130 |
| Generic share | 47% of claims |
Education and affiliations
| Medical school | Columbia University College of Physicians and Surgeons |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Hospital affiliations
- Marinhealth Medical CenterGreenbrae, CA
- Novato Community HospitalNovato, CA
- Peninsula Medical CenterBurlingame, CA
- Sonoma Valley HospitalSonoma, CA
- UCSF Medical CenterSan Francisco, CA
Industry payments (Open Payments)
- 2025$2,097 · 110 payments from 23 companies
- 2024$1,753 · 98 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Antares Pharma, Inc. | $325.72 | 27 |
| Lilly USA, LLC | $271.02 | 11 |
| Amgen Inc. | $250.43 | 13 |
| Novo Nordisk Inc | $219.99 | 12 |
| Abbvie Inc. | $165.50 | 10 |
What the 2025 payments were for
- Food and Beverage$2,073 · 109 payments
- Education$24.04 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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