David Bartos Merkow, MD
NPI 1265939532ActiveIndividual· Orthopaedic Surgery, Hand Surgery· Pewaukee, WI
Orthopaedic Surgery, Hand Surgery (MD) with Orthopaedic Associates of Wisconsin SC, practicing in Pewaukee, Wisconsin. 32 Medicare patients in 2024, $9,106 paid; all of their 57 Part D prescriptions were generic. Axogen reported $19.16 in payments in 2025, mostly food and beverage. Lists Oconomowoc Memorial Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1265939532 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 12, 2018 |
| Last updated in NPPES | Jan 27, 2026 |
| Certified by provider | Jan 27, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery, Hand Surgery Primary | 207XS0106X | 83969 | WI |
| Orthopaedic Surgery | 207X00000X | 83969 | 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 | 32 |
|---|---|
| Services billed | 97 across 25 procedure codes |
| Paid by Medicare | $9,106 |
Part D prescriptions in 2024
| Prescriptions (claims) | 57 · 59 30-day fills |
|---|---|
| Patients | 42 |
| Total drug cost | $250.56 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Hand Surgery |
| Secondary specialties | Orthopedic Surgery |
Medical group
- Orthopaedic Associates of Wisconsin SCPewaukee, WI · 109 clinicians
Hospital affiliations
- Oconomowoc Memorial HospitalOconomowoc, WI
- Waukesha Memorial HospitalWaukesha, WI
Industry payments (Open Payments)
- 2025$19.16 · 1 payment from 1 company
- 2024$1,384 · 23 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Axogen | $19.16 | 1 |
What the 2025 payments were for
- Food and Beverage$19.16 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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