Thomas Sean McBreen, M.D.
NPI 1275605578ActiveIndividual· Family Medicine· Ventura, CA
Family Medicine (M.D.) in Ventura, California, trained at University of Southern California Keck School of Medicine (class of 1979). Their prescriptions cost Medicare Part D more than their services did: $400,757 for 6,025 claims, against $111,784 paid for services in 2024. Astrazeneca Pharmaceuticals LP reported $97.72 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1275605578 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Nov 14, 2006 |
| Last updated in NPPES | Apr 7, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | G42708 | 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 - Family Practice (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 286 |
|---|---|
| Services billed | 1,953 across 47 procedure codes |
| Paid by Medicare | $111,784 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,025 · 11,808 30-day fills |
|---|---|
| Patients | 423 |
| Total drug cost | $400,757 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | University of Southern California Keck School of Medicine |
|---|---|
| Graduation year | 1979 |
| Medicare specialty | Family Practice |
Hospital affiliations
- Community Memorial Hospital - OjaiOjai, CA
- Community Memorial Hospital - VenturaVentura, CA
Other facilities
- Access Tlc Home Health CareHome health agency · San Fernando, CA
- Assisted Home CareHome health agency · Ventura, CA
- Livingston Memorial Visiting Nurse AssociationHome health agency · Ventura, CA
- Mission Home Health of Ventura, LLCHome health agency · Oxnard, CA
Industry payments (Open Payments)
- 2025$97.72 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $97.72 | 1 |
What the 2025 payments were for
- Food and Beverage$97.72 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 261 family medicine physicians in Ventura · All family medicine physicians in California