Brian Martin Sebastian, MD
NPI 1184624637ActiveIndividual· Internal Medicine· Sonoma, CA
Internal Medicine (MD) in Sonoma, California, trained at Duke University School of Medicine (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $1,124,361 for 9,091 claims, against $257,398 paid for services in 2024. Pfizer Inc. reported $15.17 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1184624637 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 27, 2005 |
| Last updated in NPPES | Feb 7, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A92199 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 590 |
|---|---|
| Services billed | 3,797 across 60 procedure codes |
| Paid by Medicare | $257,398 |
Part D prescriptions in 2024
| Prescriptions (claims) | 9,091 · 20,193 30-day fills |
|---|---|
| Patients | 911 |
| Total drug cost | $1,124,361 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | Duke University School of Medicine |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Regents Univ of California UCSFSan Francisco, CA · 283 clinicians
Hospital affiliations
- Marinhealth Medical CenterGreenbrae, CA
- Providence Queen of the Valley Medical CenterNapa, CA
- Providence Santa Rosa Memorial HospitalSanta Rosa, CA
- Sonoma Valley HospitalSonoma, CA
- UCSF Medical CenterSan Francisco, CA
Other facilities
- Accentcare Home Health of California, IncHome health agency · San Ramon, CA
- Blc Homehealth IncHome health agency · San Leandro, CA
- By the Bay HealthHome health agency · Sonoma, CA
- Gateway Home Health Corp.Home health agency · San Ramon, CA
- Luxor Care Home Health ServicesHome health agency · Vallejo, CA
Industry payments (Open Payments)
- 2024$15.17 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $15.17 | 1 |
What the 2024 payments were for
- Food and Beverage$15.17 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other internal medicine physicians in Sonoma
- 1053427989
- 1437265360
- 1568424919
- 1881986206
- 1952426421
- 1376621862
- 1033446125
- 1306143169
- 1356419931
- 1437313863
- 1437532652
- 1619512548
All 18 internal medicine physicians in Sonoma · All internal medicine physicians in California