Mark Stout, MD
Transplant Surgery · Waukesha, WINPI 1851386551
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 37 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 10 manufacturers reported payments, led by Medtronic at 38.1% of the total.
Across 37 payments — averaging $72.68 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medtronic$1K
- Abbott$741
- Zimmer Biomet$261
- Edwards Lifesciences$165
- Helios Cardio Inc$148
- Actelion Pharmaceuticals US, Inc.$125
- plus $227 from 4 others
What the payments were for
- Food & beverage$2,689100%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Medtronic(2 entities) | 12 | $1,023 |
| Abbott | 14 | $741 |
| Zimmer Biomet | 3 | $261 |
| Edwards Lifesciences | 2 | $165 |
| Helios Cardio Inc | 1 | $148 |
| Actelion Pharmaceuticals US, Inc. | 1 | $125 |
| Innovative Medical Devices, Inc. | 1 | $90 |
| Atricure, Inc. | 1 | $70 |
| Abiomed | 1 | $46 |
| Kestra Medical Technology Services, Inc. | 1 | $20 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
- Penditure$166
- Epic$166
- CARDIAMEND$148
- INSPIRIS RESILIA aortic valve$145
- Trifecta GT Tissue Heart Valve$141
- CoreValve Evolut$139
- THORATEC HEARTMATE 3 LVAS IMPLANT KIT$137
- Mosaic$127
- Freestyle$127
- UPTRAVI$125
- OPSUMIT$125
- CG Future$122
- SternaLock Blu$110
How this compares
$2,689 in reported general payments places this provider in the 65th percentile of 32 transplant surgery providers in Wisconsin.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Other transplant surgery in Waukesha
- Anthony DalessandroMadison$99K
- Matthew CooperMilwaukee$98K
- Dixon KaufmanMadison$15K
- Elliot GrodsteinMadison$10K
- Kondragunta PrasadMilwaukee$9K
- Gaurav JainMilwaukee$8K
- Erik SchaddeMadison$6K
- Talal Al-QaoudMadison$6K
- Joshua MezrichMadison$4K
- David AufhauserMadison$4K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.