Michael G. Zahn, MD
NPI 1437118247ActiveIndividual· Orthopaedic Surgery· Hamilton, NY
Orthopaedic Surgery (MD) in Hamilton, New York, trained at Stanford University School of Medicine (class of 1980). 325 Medicare patients in 2024, $102,900 paid; all of their 269 Part D prescriptions were generic. Zimmer Biomet Holdings, Inc. reported $72.81 in payments in 2025, mostly acquisitions.
Overview
| NPI | 1437118247 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 21, 2006 |
| Last updated in NPPES | Oct 18, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | 162051 | NY |
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 - Orthopedic Surgery (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 325 |
|---|---|
| Services billed | 4,434 across 52 procedure codes |
| Paid by Medicare | $102,900 |
Part D prescriptions in 2024
| Prescriptions (claims) | 269 · 281 30-day fills |
|---|---|
| Patients | 98 |
| Total drug cost | $1,518 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | Stanford University School of Medicine |
|---|---|
| Graduation year | 1980 |
| Medicare specialty | Orthopedic Surgery |
Hospital affiliations
- Chenango Memorial HospitalNorwich, NY
- Community Memorial Hospital, IncHamilton, NY
- Oneida Health HospitalOneida, NY
Industry payments (Open Payments)
- 2025$72.81 · 1 payment from 1 company
- 2024$128.15 · 4 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Zimmer Biomet Holdings, Inc. | $72.81 | 1 |
What the 2025 payments were for
- Acquisitions$72.81 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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