Brian Nicholas Mason, DO
NPI 1942889217ActiveIndividual· Family Medicine· Santa Monica, CA
Family Medicine (DO) with Southeastern Physician Services PC and 2 other groups, practicing in Santa Monica, California. Their prescriptions cost Medicare Part D more than their services did: $76,341 for 936 claims, against $29,746 paid for services in 2024. Mallinckrodt Hospital Products Inc. reported $18.05 in payments in 2025, mostly food and beverage. Lists Community Hospital of Huntington Park and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1942889217 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | Yes |
| NPI issued | Apr 5, 2021 |
| Last updated in NPPES | Jun 2, 2026 |
| Certified by provider | Jun 2, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 20A23853 | CA |
| Internal Medicine | 207R00000X | 20A23853 | 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); Practitioner - Family Practice (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 235 |
|---|---|
| Services billed | 259 across 7 procedure codes |
| Paid by Medicare | $29,746 |
Part D prescriptions in 2024
| Prescriptions (claims) | 936 · 1,649 30-day fills |
|---|---|
| Patients | 148 |
| Total drug cost | $76,341 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Family Practice |
Medical groups
- Southeastern Physician Services PCSaint Peters, MO · 593 clinicians
- Hospitalist Group of Montebello IncS El Monte, CA · 58 clinicians
- Im-Fsr IncSanta Ana, CA · 31 clinicians
Hospital affiliations
- Community Hospital of Huntington ParkHuntington Park, CA
- East Los Angeles Doctors HospitalLos Angeles, CA
- Memorial Hospital of GardenaGardena, CA
Industry payments (Open Payments)
- 2025$18.05 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mallinckrodt Hospital Products Inc. | $18.05 | 1 |
What the 2025 payments were for
- Food and Beverage$18.05 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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