Stephane Leung Wai Sang, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) · Grand Rapids, MINPI 1366859985
Payments from drug & device makers
Across 464 payments — averaging $1389.53 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- W. L. Gore & Associates, Inc.$326K
- Medtronic$308K
- Edwards Lifesciences$4K
- Atricure, Inc.$2K
- Abbott$2K
- Baxter Healthcare$1K
- plus $2K from 9 others
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 |
|---|---|---|
| W. L. Gore & Associates, Inc. | 43 | $326,132 |
| Medtronic(2 entities) | 335 | $307,716 |
| Edwards Lifesciences | 28 | $3,778 |
| Atricure, Inc. | 11 | $2,111 |
| Abbott | 12 | $1,553 |
| Baxter Healthcare | 12 | $1,391 |
| Boston Scientific | 5 | $791 |
| Bolton Medical Inc | 8 | $600 |
| Davol Inc. | 1 | $136 |
| Mallinckrodt Enterprises LLC | 1 | $125 |
| Medistim USA, Inc. | 1 | $105 |
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 1 | $105 |
| Johnson & Johnson | 4 | $87 |
| Covidien LP | 1 | $86 |
| Medwest Associates | 1 | $27 |
How this compares
$644,743 in reported general payments places this provider in the 95th 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 Grand Rapids
- John HeiserGrand Rapids$980K
- Charles WillekesGrand Rapids$510K
- Edward MurphyGrand Rapids$255K
- John ParisGrand Rapids$226K
- Tomasz TimekGrand Rapids$141K
- Marzia LeaccheGrand Rapids$101K
- Robert HookerGrand Rapids$88K
- Geoffrey LamGrand Rapids$17K
- Jordan GroskurthGrand Rapids$16K
- Phillip CampGrand Rapids$15K
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.