Sebastian Wiesemann, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) · Columbia, MONPI 1669955001
Payments from drug & device makers
What this record shows
The money is spread across several categories — education (45.7%), travel and lodging and food and beverage — rather than concentrated in one kind of arrangement. Intuitive Surgical accounts for 95.3% of it on its own, with 8 other manufacturers making up the rest. Reporting peaked in 2019 at $6,498 and has fallen 87.5% since, to $815 in 2024.
Across 55 payments — averaging $179.08 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$9K
- Atricure, Inc.$142
- Zimvie Inc.$117
- EMD Serono, Inc.$74
- Johnson & Johnson$48
- Conmed Corporation$23
- plus $57 from 3 others
What the payments were for
- Travel & lodging$3,16132%
- Food & beverage$2,18922%
- Education$4,50046%
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 | 41 | $9,388 |
| Atricure, Inc. | 6 | $142 |
| Zimvie Inc. | 1 | $117 |
| EMD Serono, Inc. | 1 | $74 |
| Johnson & Johnson(2 entities) | 2 | $48 |
| Conmed Corporation | 1 | $23 |
| Pacira Pharmaceuticals Incorporated | 1 | $21 |
| Davol Inc. | 1 | $19 |
| Pharmacosmos Therapeutics Inc. | 1 | $18 |
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.
- Da Vinci Surgical System$8,577
- The Tether$117
How this compares
$9,849 in reported general payments places this provider in the 65th percentile of 113 thoracic surgery (cardiothoracic vascular surgery) providers in Missouri.
See all thoracic surgery (cardiothoracic vascular surgery) providers in Missouri →
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 Columbia
- Joss FernandezColumbia$100K
- John MarkleyColumbia$21K
- Jussuf KaifiColumbia$9K
- Richard MellittColumbia$8K
- Justin van MeeterenKansas City$398K
- Tsuyoshi KanekoSaint Louis$353K
- Ralph DamianoSaint Louis$134K
- Jeremy LeidenfrostChesterfield$97K
- Ronald NewCape Girardeau$61K
- Dante DaliSpringfield$58K
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.