Michael J. Garren, MD
NPI 1013971662ActiveIndividual· Surgery· Madison, WI
Surgery (MD) in Madison, Wisconsin, trained at University of Wisconsin School of Medicine (class of 1989). Mostly services rather than prescriptions: Medicare paid $33,154 for 106 patients in 2024, with only 19 Part D claims. Intuitive Surgical, Inc. reported $875.75 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1013971662 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 12, 2006 |
| Last updated in NPPES | Dec 30, 2020 |
| Certified by provider | Dec 30, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | 31543 | 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 - General Surgery (IL); Practitioner - General Surgery (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 106 |
|---|---|
| Services billed | 194 across 29 procedure codes |
| Paid by Medicare | $33,154 |
Part D prescriptions in 2024
| Prescriptions (claims) | 19 · 33 30-day fills |
|---|---|
| Patients | 11 |
| Total drug cost | $6,366 |
| Generic share | 74% of claims |
Education and affiliations
| Medical school | University of Wisconsin School of Medicine |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | General Surgery |
Medical group
- University of Wisconsin Medical Foundation IncMadison, WI · 2,553 clinicians
Hospital affiliation
Industry payments (Open Payments)
- 2025$875.75 · 6 payments from 1 company
- 2024$5,965 · 17 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $875.75 | 6 |
What the 2025 payments were for
- Food and Beverage$566.67 · 4 payments
- Travel and Lodging$309.08 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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