George Comas, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) · Sterling Heights, MINPI 1578715454
Payments from drug & device makers
What this record shows
The money is spread across several categories — food and beverage (31.7%), travel and lodging and education — rather than concentrated in one kind of arrangement. 19 manufacturers reported payments, led by Intuitive Surgical at 33.5% of the total. Reporting peaked in 2024 at $19,056 and has fallen 78.5% since, to $4,093 in 2025. Among thoracic surgery (cardiothoracic vascular surgery) clinicians in MI with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 231 payments — averaging $193.27 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$15K
- Edwards Lifesciences$10K
- Medtronic$10K
- Artivion, Inc.$5K
- Abbott$1K
- Abiomed$1K
- plus $3K from 13 others
What the payments were for
- Consulting fees$5,25012%
- Travel & lodging$13,13329%
- Food & beverage$14,15432%
- Education$12,10527%
- Gifts$30%
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 | 37 | $14,975 |
| Edwards Lifesciences | 33 | $9,734 |
| Medtronic(2 entities) | 78 | $9,629 |
| Artivion, Inc. | 26 | $4,622 |
| Abbott | 12 | $1,389 |
| Abiomed | 8 | $1,384 |
| Atricure, Inc. | 9 | $878 |
| Kls-martin L.p. | 6 | $740 |
| Elutia, Inc. | 4 | $286 |
| Surgical Specialties Corporation (US), Inc. (dba Corza Medical) | 2 | $199 |
| Getinge USA Sales, LLC | 6 | $182 |
| E.r. Squibb & Sons, L.L.C. | 1 | $125 |
| Zimmer Biomet | 2 | $122 |
| Boston Scientific | 1 | $114 |
| Johnson & Johnson | 1 | $91 |
| AstraZeneca | 1 | $87 |
| LSI Solutions Inc | 2 | $36 |
| Biocomposites Inc | 1 | $31 |
| Smith+Nephew | 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.
- DAVINCI XI$12,000
- Mosaic$3,082
- Da Vinci Surgical System$2,363
- Octopus$2,205
- MITRIS RESILIA Mitral Valve$1,753
- Cardiac non-SynerGraft$1,415
- Carpentier-Edwards PERIMOUNT Magna Mitral Ease Pericardial Valve$1,383
- Avalus$1,345
- Impella$1,218
- 3F$717
- ATRICLIP LAA EXCLUSION SYSTEM$506
- Mitra Clip system$476
- INSPIRIS RESILIA aortic valve$399
- ATRICURE CRYOICE CRYOABLATION SYSTEM (CRYO2)$349
- SYNERGY ABLATION SYSTEM$349
- EPI-SENSE GUIDED COAGULATION SYSTEM WITH VISITRAX$349
- COREVALVE EVOLUT R$306
- CoreValve Evolut$270
- Epic$217
- Penditure$160
How this compares
$44,645 in reported general payments places this provider in the 90th percentile of 182 thoracic surgery (cardiothoracic vascular surgery) providers in Michigan.
See all thoracic surgery (cardiothoracic vascular surgery) providers in Michigan →
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 Sterling Heights
- Steven BollingAnn Arbor$41.7M
- Raed AlnajjarDetroit$781K
- Gorav AilawadiAnn Arbor$434K
- Reza DabirDearborn$342K
- Shinichi FukuharaAnn Arbor$236K
- John ParisGrand Rapids$226K
- Zane HammoudDetroit$208K
- Bo YangAnn Arbor$180K
- Matthew RomanoAnn Arbor$177K
- Marc SilverPontiac$166K
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.