Stefan V. Zachary, DO MS
NPI 1104881895ActiveIndividual· Orthopaedic Surgery, Hand Surgery· Madison, WI
Orthopaedic Surgery, Hand Surgery (DO MS) in Madison, Wisconsin, licensed in WI, with an NPI issued in April 2006. Mostly services rather than prescriptions: Medicare paid $97,913 for 149 patients in 2024, with only 45 Part D claims. Stryker Corporation was the largest of 2 companies reporting payments in 2025, $312.34 in all, mostly food and beverage.
Overview
| NPI | 1104881895 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO MS |
| Sole proprietor | No |
| NPI issued | Apr 18, 2006 |
| Last updated in NPPES | Mar 17, 2026 |
| Certified by provider | Mar 17, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery, Hand Surgery Primary | 207XS0106X | 37389-21 | WI |
| Orthopaedic Surgery | 207X00000X | 37389 | WI |
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 - Hand Surgery (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 149 |
|---|---|
| Services billed | 1,473 across 47 procedure codes |
| Paid by Medicare | $97,913 |
Part D prescriptions in 2024
| Prescriptions (claims) | 45 · 51 30-day fills |
|---|---|
| Patients | 29 |
| Total drug cost | $455.09 |
| Generic share | 100% of claims |
Industry payments (Open Payments)
- 2025$312.34 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $163.46 | 1 |
| Acumed LLC | $148.88 | 1 |
What the 2025 payments were for
- Food and Beverage$312.34 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All Orthopaedic Surgery, Hand Surgery providers in Wisconsin