Ivan Dedrick Gavin Hamilton, M.D.
NPI 1669421202ActiveIndividual· Internal Medicine· San Francisco, CA
Internal Medicine (M.D.) in San Francisco, California, trained at Georgetown University School of Medicine (class of 2002). Medicare paid $42,284 for services to 264 patients in 2024. Abbvie Inc. was the largest of 2 companies reporting payments in 2025, $297.26 in all, mostly food and beverage.
Overview
| NPI | 1669421202 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 10, 2006 |
| Last updated in NPPES | May 28, 2021 |
| Certified by provider | May 28, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A104632 | CA |
| Internal Medicine | 207R00000X | D63437 | MD |
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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 264 |
|---|---|
| Services billed | 330 across 8 procedure codes |
| Paid by Medicare | $42,284 |
Education and affiliations
| Medical school | Georgetown University School of Medicine |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Internal Medicine |
Medical group
- La Clinica de la Raza IncOakland, CA · 130 clinicians
Hospital affiliation
- Sutter Solano Medical CenterVallejo, CA
Other facilities
- Athome Healthcare Team, LLCHome health agency · American Canyon, CA
- Silverline Staff Home HealthHome health agency · Fremont, CA
Industry payments (Open Payments)
- 2025$297.26 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $169.14 | 2 |
| Madrigal Pharmaceuticals | $128.12 | 1 |
What the 2025 payments were for
- Food and Beverage$297.26 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 1,457 internal medicine physicians in San Francisco · All internal medicine physicians in California