Mary Ann Bos, DO
NPI 1780768879ActiveIndividual· Orthopaedic Surgery, Hand Surgery· Downey, CA
Orthopaedic Surgery, Hand Surgery (DO) in Downey, California, trained at Midwestern University, Chicago College of Osteopathic Med (class of 1991). Mostly services rather than prescriptions: Medicare paid $26,125 for 74 patients in 2024, with only 35 Part D claims. Stryker Corporation reported $110.64 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1780768879 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Oct 25, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery, Hand Surgery Primary | 207XS0106X | 20A7009 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Orthopedic Surgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 74 |
|---|---|
| Services billed | 307 across 42 procedure codes |
| Paid by Medicare | $26,125 |
Part D prescriptions in 2024
| Prescriptions (claims) | 35 · 35 30-day fills |
|---|---|
| Patients | 13 |
| Total drug cost | $231.85 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | Midwestern University, Chicago College of Osteopathic Med |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Orthopedic Surgery |
Medical group
- Beach Cities Orthopedics and Sports MedicineManhattan Beach, CA · 33 clinicians
Industry payments (Open Payments)
- 2025$110.64 · 4 payments from 1 company
- 2024$141.73 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $110.64 | 4 |
What the 2025 payments were for
- Food and Beverage$110.64 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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