Michelle L. Mierzwa, MD
NPI 1043421340ActiveIndividual· Radiology, Radiation Oncology· Ann Arbor, MI
Radiology, Radiation Oncology (MD) in Ann Arbor, Michigan, trained at University of Cincinnati College of Medicine (class of 2003). In 2024 Medicare paid $87,155 for 108 patients, and Part D covered 125 of their prescriptions, 89% of them generic. Siemens Medical Solutions USA, Inc. reported $611.22 in payments in 2025, mostly travel and lodging.
Overview
| NPI | 1043421340 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 25, 2007 |
| Last updated in NPPES | Jun 23, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Radiation Oncology Primary | 2085R0001X | 4301092417 | MI |
| Radiology, Radiation Oncology | 2085R0001X | 57007630 | OH |
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 - Radiation Oncology (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 108 |
|---|---|
| Services billed | 1,258 across 33 procedure codes |
| Paid by Medicare | $87,155 |
Part D prescriptions in 2024
| Prescriptions (claims) | 125 · 135 30-day fills |
|---|---|
| Patients | 63 |
| Total drug cost | $2,035 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | University of Cincinnati College of Medicine |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Radiation Oncology |
| Telehealth | Offers telehealth |
Medical groups
- Regents of the University of MichiganAnn Arbor, MI · 3,346 clinicians
- Edward W Sparrow Hospital AssociationLansing, MI · 730 clinicians
Hospital affiliations
- Edward W Sparrow HospitalLansing, MI
- University of Michigan Health SystemAnn Arbor, MI
Industry payments (Open Payments)
- 2025$611.22 · 3 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Siemens Medical Solutions USA, Inc. | $611.22 | 3 |
What the 2025 payments were for
- Travel and Lodging$551.67 · 1 payment
- Food and Beverage$59.55 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 41 radiation oncologists in Ann Arbor · All radiation oncologists in Michigan