Michael Zimmerman, MD
NPI 1477579902ActiveIndividual· Transplant Surgery· Milwaukee, WI
Transplant Surgery (MD) in Milwaukee, Wisconsin, trained at University of California, San Francisco School of Medicine (class of 1997). 36 Medicare patients in 2024, $30,260 paid; nearly all of their 130 Part D prescriptions were generic (97%). Transmedics, Inc. reported $1,333 in payments in 2025, mostly travel and lodging.
Overview
| NPI | 1477579902 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 15, 2006 |
| Last updated in NPPES | Jul 8, 2022 |
| Certified by provider | Jul 8, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Transplant Surgery Primary | 204F00000X | 62843 | WI |
| Surgery | 208600000X | 62843 | WI |
| Surgery | 208600000X | 44600 | CO |
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 - General Surgery (UT); Practitioner - General Surgery (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 36 |
|---|---|
| Services billed | 58 across 24 procedure codes |
| Paid by Medicare | $30,260 |
Part D prescriptions in 2024
| Prescriptions (claims) | 130 · 134 30-day fills |
|---|---|
| Patients | 26 |
| Total drug cost | $11,888 |
| Generic share | 97% of claims |
Education and affiliations
| Medical school | University of California, San Francisco School of Medicine |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | General Surgery |
Medical group
- University of Utah Adult ServicesFarmington, UT · 1,788 clinicians
Hospital affiliation
- University of Utah Hospital and ClinicsSalt Lake City, UT
Industry payments (Open Payments)
- 2025$1,333 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Transmedics, Inc. | $1,333 | 2 |
What the 2025 payments were for
- Travel and Lodging$1,333 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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