Geoffrey Lam, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) · Grand Rapids, MINPI 1619156205
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $9,981 of the $16,585 with a category attached, or 60.2%. AstraZeneca accounts for 64.7% of it on its own, with 11 other manufacturers making up the rest. Reporting peaked in 2021 at $9,768 and has fallen 99.5% since, to $46 in 2025.
Across 31 payments — averaging $535.01 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$11K
- Intuitive Surgical$5K
- E.r. Squibb & Sons, L.L.C.$300
- Medtronic$92
- Baxter Healthcare$80
- Edwards Lifesciences$72
- plus $215 from 6 others
What the payments were for
- Consulting fees$9,98160%
- Speaking & faculty fees$5,95036%
- Food & beverage$6284%
- Education$260%
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 |
|---|---|---|
| AstraZeneca | 5 | $10,731 |
| Intuitive Surgical | 5 | $5,095 |
| E.r. Squibb & Sons, L.L.C. | 1 | $300 |
| Medtronic(2 entities) | 5 | $92 |
| Baxter Healthcare | 4 | $80 |
| Edwards Lifesciences | 3 | $72 |
| Johnson & Johnson | 3 | $69 |
| Abbott | 1 | $51 |
| Medwest Associates | 1 | $27 |
| Davol Inc. | 1 | $26 |
| Abiomed | 1 | $23 |
| Atricure, Inc. | 1 | $19 |
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.
- TAGRISSO$5,898
- IMFINZI$4,833
- Da Vinci Surgical System$4,750
- DA VINCI SP$150
How this compares
$16,585 in reported general payments places this provider in the 75th 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 ParisGrand Rapids$226K
- Stephane Leung Wai SangGrand Rapids$85K
- John HeiserGrand Rapids$57K
- Robert HookerGrand Rapids$52K
- Marzia LeaccheGrand Rapids$40K
- Charles WillekesGrand Rapids$19K
- Jordan GroskurthGrand Rapids$16K
- Phillip CampGrand Rapids$15K
- David RanneyGrand Rapids$14K
- Behrooz ShabahangGrand Rapids$14K
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.