Mark W. Niedfeldt, MD
NPI 1205887775ActiveIndividual· Family Medicine· Mequon, WI
Family Medicine (MD) in Mequon, Wisconsin, trained at Medical College of Wisconsin (class of 1988). Part D covered 656 prescriptions written in 2024, 82% of them generic.
Overview
| NPI | 1205887775 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 12, 2006 |
| Last updated in NPPES | Sep 24, 2024 |
| Certified by provider | Sep 24, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 35201 | 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 - Family Practice (WI) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 656 · 1,363 30-day fills |
|---|---|
| Patients | 51 |
| Total drug cost | $95,302 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | Medical College of Wisconsin |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Family Practice |
Medical group
- Colab Physicians, SCMequon, WI · 2 clinicians
Hospital affiliation
- Froedtert Memorial Lutheran HospitalMilwaukee, WI
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 29 family medicine physicians in Mequon · All family medicine physicians in Wisconsin