David Charles Ritzow, M.D.
NPI 1588617211ActiveIndividual· Orthopaedic Surgery· Appleton, WI
Orthopaedic Surgery (M.D.) in Appleton, Wisconsin, trained at University of Wisconsin School of Medicine (class of 1992). 125 Medicare patients in 2024, $40,241 paid; all of their 192 Part D prescriptions were generic. Medacta USA, Inc. reported $66.88 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1588617211 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 17, 2006 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | 39990 | WI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Orthopedic Surgery (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 125 |
|---|---|
| Services billed | 993 across 42 procedure codes |
| Paid by Medicare | $40,241 |
Part D prescriptions in 2024
| Prescriptions (claims) | 192 · 192 30-day fills |
|---|---|
| Patients | 107 |
| Total drug cost | $479.68 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | University of Wisconsin School of Medicine |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Orthopedic Surgery |
| Secondary specialties | Sports Medicine |
Medical group
- Orthopedic and Sports Institute of the Fox Valley S CAppleton, WI · 13 clinicians
Hospital affiliation
- Thedacare Regional Medical Center - Appleton IncAppleton, WI
Industry payments (Open Payments)
- 2025$66.88 · 1 payment from 1 company
- 2024$94.12 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medacta USA, Inc. | $66.88 | 1 |
What the 2025 payments were for
- Food and Beverage$66.88 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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