James Robert O'Brien, MD
Emergency Medicine (MD) in South San Francisco, California, trained at Ohio State University College of Medicine (class of 2019). 106 Medicare patients in 2024, $12,062 paid; nearly all of their 90 Part D prescriptions were generic (92%). A record with the same name and state is on the OIG exclusion list; it carries no NPI, so check it before acting.
Overview
| NPI | 1780143024 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 17, 2019 |
| Last updated in NPPES | Sep 9, 2024 |
| Certified by provider | Sep 9, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | A195340 | CA |
| Emergency Medicine | 207P00000X | 125.073615 | IL |
| Emergency Medicine | 207P00000X | 036164831 | IL |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
Exclusion screening
Possible match: verify before acting. The OIG list has a record with the same name in California, but that record carries no NPI, so it may be a different person or business.
| Matched by | Name on OIG list | Exclusion type | Excluded since | Location |
|---|---|---|---|---|
| Name + state | James Patrick O'Brien · Dentist | 1128a4 | Aug 18, 2005 | Camarillo, CA |
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | Possible (name) | See above |
| 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 - Emergency Medicine (CA); Practitioner - Emergency Medicine (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 106 |
|---|---|
| Services billed | 119 across 11 procedure codes |
| Paid by Medicare | $12,062 |
Part D prescriptions in 2024
| Prescriptions (claims) | 90 · 90 30-day fills |
|---|---|
| Patients | 73 |
| Total drug cost | $3,009 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Ohio State University College of Medicine |
|---|---|
| Graduation year | 2019 |
| Medicare specialty | Emergency Medicine |
Medical group
- Permanente Medical Group IncOakland, CA · 10,996 clinicians
Hospital affiliation
- Kaiser Foundation Hospital - South San FranciscoSouth San Francisco, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 24 emergency medicine physicians in South San Francisco · All emergency medicine physicians in California