Mark J. Stout, MD
NPI 1851386551ActiveIndividual· Transplant Surgery· Waukesha, WI
Transplant Surgery (MD) in Waukesha, Wisconsin, trained at Saint Louis University School of Medicine (class of 1985). Mostly services rather than prescriptions: Medicare paid $29,728 for 43 patients in 2024, with only 31 Part D claims. Medtronic, Inc. was the largest of 3 companies reporting payments in 2025, $525.03 in all, mostly food and beverage.
Overview
| NPI | 1851386551 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 19, 2005 |
| Last updated in NPPES | May 3, 2021 |
| Certified by provider | May 3, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Transplant Surgery Primary | 204F00000X | 62383 | WI |
| Thoracic Surgery (Cardiothoracic Vascular Surgery) | 208G00000X | 01069517A | IN |
| Thoracic Surgery (Cardiothoracic Vascular Surgery) | 208G00000X | 62383 | WI |
| Thoracic Surgery (Cardiothoracic Vascular Surgery) | 208G00000X | 036080105 | IL |
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 - Cardiac Surgery (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 43 |
|---|---|
| Services billed | 76 across 21 procedure codes |
| Paid by Medicare | $29,728 |
Part D prescriptions in 2024
| Prescriptions (claims) | 31 · 42 30-day fills |
|---|---|
| Patients | 18 |
| Total drug cost | $2,113 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | Saint Louis University School of Medicine |
|---|---|
| Graduation year | 1985 |
| Medicare specialty | Cardiac Surgery |
| Secondary specialties | Thoracic Surgery |
Medical group
- Prohealth Medical Group IncMukwonago, WI · 479 clinicians
Hospital affiliation
- Waukesha Memorial HospitalWaukesha, WI
Industry payments (Open Payments)
- 2025$525.03 · 5 payments from 3 companies
- 2024$436.30 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $388.58 | 3 |
| Innovative Medical Devices, Inc. | $90.34 | 1 |
| Abiomed | $46.11 | 1 |
What the 2025 payments were for
- Food and Beverage$525.03 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records