Henry Forrest Chambers Iii, MD
NPI 1184715773ActiveIndividual· Internal Medicine, Infectious Disease· San Francisco, CA
Internal Medicine, Infectious Disease (MD) in San Francisco, California, trained at Vanderbilt University School of Medicine (class of 1977). Mostly services rather than prescriptions: Medicare paid $13,423 for 51 patients in 2024, with only 17 Part D claims. Merck Sharp & Dohme LLC reported $850.00 in payments in 2025, mostly consulting fees.
Overview
| NPI | 1184715773 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 27, 2006 |
| Last updated in NPPES | Aug 3, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | G39518 | CA |
| Internal Medicine | 207R00000X | G39518 | 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 - Infectious Disease (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 51 |
|---|---|
| Services billed | 139 across 9 procedure codes |
| Paid by Medicare | $13,423 |
Part D prescriptions in 2024
| Prescriptions (claims) | 17 · 17 30-day fills |
|---|---|
| Total drug cost | $7,433 |
Education and affiliations
| Medical school | Vanderbilt University School of Medicine |
|---|---|
| Graduation year | 1977 |
| Medicare specialty | Infectious Disease |
| Secondary specialties | Internal Medicine |
Medical group
- University of California Sfgh Medical GroupSan Francisco, CA · 587 clinicians
Hospital affiliation
- Zuckerberg San Francisco General Hosp & Trauma CtrSan Francisco, CA
Industry payments (Open Payments)
- 2025$850.00 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $850.00 | 1 |
What the 2025 payments were for
- Consulting Fee$850.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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