Steven Gerndt, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) · Green Bay, WINPI 1487667549
Payments from drug & device makers
What this record shows
10 manufacturers reported payments, led by Intuitive Surgical at 30.9% of the total. Reporting peaked in 2019 at $3,134 and has fallen 96.2% since, to $120 in 2025. That places this record below the midpoint for thoracic surgery (cardiothoracic vascular surgery) clinicians in WI, where the typical reported total is $5,625.
Across 46 payments — averaging $107.19 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$2K
- Medtronic$1K
- Abiomed$881
- Edwards Lifesciences$445
- Silk Road Medical, Inc.$183
- Pulmonx Corporation$147
- plus $356 from 4 others
Across 7 payments — averaging $4476.57 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Medtronic$31K
What the payments were for
- Travel & lodging$2,67554%
- Food & beverage$2,25546%
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 |
|---|---|---|
| Intuitive Surgical | 20 | $1,523 |
| Medtronic | 9 | $1,395 |
| Abiomed | 5 | $881 |
| Edwards Lifesciences | 4 | $445 |
| Silk Road Medical, Inc. | 3 | $183 |
| Pulmonx Corporation | 1 | $147 |
| Atricure, Inc. | 1 | $118 |
| Lemaitre Vascular, Inc. | 1 | $116 |
| Boston Scientific | 1 | $82 |
| Livanova USA, Inc. | 1 | $40 |
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.
- Mosaic$1,277
- Impella$838
- Da Vinci Surgical System$791
- Edwards SAPIEN 3 Transcatheter Heart Valve$257
- ENROUTE Transcarotid Neuroprotection System$152
- ENROUTE Transcarotid Stent$152
- Pulmonx Endobronchial Valve EBV$147
- ATRICURE CRYOICE CRYOSPHERE CRYOABLATION SYSTEM$118
- ATRICLIP LAA EXCLUSION SYSTEM$118
- RESTOREFLOW$116
- SAPIEN 3 Ultra RESILIA$114
How this compares
$4,931 in reported general payments places this provider in the 45th percentile of 97 thoracic surgery (cardiothoracic vascular surgery) providers in Wisconsin.
See all thoracic surgery (cardiothoracic vascular 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 thoracic surgery (cardiothoracic vascular surgery) in Green Bay
- John SeccombeGreen Bay$16K
- Thomas PercivalGreen Bay$10K
- Kevin GreerGreen Bay$9K
- Fuad ZankoulGreen Bay$7K
- James BaileyGreen Bay$7K
- Karl DamrothGreen Bay$5K
- Mario GasparriMilwaukee$516K
- David DemosMilwaukee$446K
- William TisolMilwaukee$339K
- John JohnkoskiWausau$124K
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.