Phillip Nahirniak, D.O.
NPI 1437681327ActiveIndividual· Surgery· Saginaw, MI
Surgery (D.O.) in Saginaw, Michigan, trained at Michigan State University College of Osteopathic Medicine (class of 2017). 251 Medicare patients in 2024, $58,998 paid; nearly all of their 57 Part D prescriptions were generic (95%). Baxter Healthcare was the largest of 5 companies reporting payments in 2025, $370.96 in all, mostly food and beverage.
Overview
| NPI | 1437681327 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Mar 30, 2017 |
| Last updated in NPPES | Sep 25, 2026 |
| Certified by provider | Sep 25, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | 5101026882 | MI |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
| Surgery, Surgical Critical Care | 2086S0102X | 5101026882 | MI |
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 - General Surgery (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 251 |
|---|---|
| Services billed | 601 across 56 procedure codes |
| Paid by Medicare | $58,998 |
Part D prescriptions in 2024
| Prescriptions (claims) | 57 · 58 30-day fills |
|---|---|
| Patients | 37 |
| Total drug cost | $2,050 |
| Generic share | 95% of claims |
Education and affiliations
| Medical school | Michigan State University College of Osteopathic Medicine |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | General Surgery |
Medical group
- Covenant Medical Center, Inc.Saginaw, MI · 480 clinicians
Hospital affiliations
- Covenant Medical CenterSaginaw, MI
- Hills & Dales General HospitalCass City, MI
- Scheurer HospitalPigeon, MI
Industry payments (Open Payments)
- 2025$370.96 · 5 payments from 5 companies
- 2024$1,600 · 9 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Baxter Healthcare | $134.22 | 1 |
| Depuy Synthes Sales Inc. | $84.76 | 1 |
| Tela Bio, Inc. | $53.91 | 1 |
| Medtronic, Inc. | $51.53 | 1 |
| Davol Inc. | $46.54 | 1 |
What the 2025 payments were for
- Food and Beverage$370.96 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 53 general surgeons in Saginaw · All general surgeons in Michigan