William Yoon, MD
Vascular Surgery · Skokie, ILNPI 1720368657
Payments from drug & device makers
What this record shows
The money is spread across several categories — speaking fees (35.0%), food and beverage and travel and lodging — rather than concentrated in one kind of arrangement. It is spread thinly across 19 manufacturers, the largest accounting for just 23.3%. Among vascular surgery clinicians in IL 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 315 payments — averaging $171.03 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Cook Incorporated$13K
- Bolton Medical Inc$12K
- W. L. Gore & Associates, Inc.$11K
- Cook Medical LLC$9K
- Medtronic$3K
- Wilson Cook Medical Incorporated$3K
- plus $3K from 13 others
What the payments were for
- Consulting fees$1,9204%
- Speaking & faculty fees$18,87535%
- Grants$240%
- Travel & lodging$15,49129%
- Food & beverage$17,56533%
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 |
|---|---|---|
| Cook Incorporated | 12 | $12,527 |
| Bolton Medical Inc | 21 | $12,441 |
| W. L. Gore & Associates, Inc. | 66 | $10,815 |
| Cook Medical LLC | 139 | $8,536 |
| Medtronic(2 entities) | 37 | $3,497 |
| Wilson Cook Medical Incorporated | 1 | $3,100 |
| Abbott | 9 | $502 |
| Penumbra, Inc. | 8 | $471 |
| Silk Road Medical, Inc. | 5 | $470 |
| Surmodics, Inc. | 2 | $409 |
| Viz.ai, Inc. | 3 | $362 |
| Kerecis Limited | 3 | $195 |
| Stryker | 2 | $170 |
| Baxter Healthcare | 1 | $119 |
| Shockwave Medical, Inc | 2 | $113 |
| Artivion, Inc. | 1 | $95 |
| Cordis US CORP. | 1 | $23 |
| Regeneron Healthcare Solutions, Inc. | 1 | $18 |
| Argon Medical Devices, Inc. | 1 | $13 |
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.
- Cook Medical AAA$4,689
- TAG Thoracic Endoprosthesis$4,400
- Zenith Alpha$3,966
- Cook$3,733
- Cook Medical Zenith$3,000
- EXCLUDER AAA Endoprosthesis$2,397
- Cook Medical Stents$2,100
- Cook Medical AFEN$1,500
- MO.MA ULTRA$793
- TREO ABDOMINAL STENT-GRAFT SYSTEM$662
- GORE TAG Thoracic Branch Endoprosthesis$631
- Endurant$607
- ENDURANT IIS$590
- GORE TAG Conformable Thoracic Endoprosthesis$576
- Kerecis SurgiClose$550
- EXCLUDER Iliac Branch Endoprosthesis$478
- C3 Delivery System$457
- Grafts$428
- Zenith$420
- Pounce Thrombectomy$409
How this compares
$53,874 in reported general payments places this provider in the 90th percentile of 170 vascular surgery providers in Illinois.
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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| ClopidogrelClopidogrel Bisulfate | 24 | $77 |
| Atorvastatin Calcium | 24 | $58 |
Paid to pharmacies, not to this prescriber.
Other vascular surgery in Skokie
- Cheong LeeSkokie$19K
- Rym El KhourySkokie$9K
- Maunil BhattSkokie$9K
- Ross MilnerChicago$1.3M
- Sapan DesaiArlington Heights$1.2M
- Nabeel RanaPeoria$934K
- Atif BaqaiPark Ridge$567K
- Trissa BabrowskiChicago$292K
- Tejas ShahDowners Grove$213K
- Carlos BecharaMaywood$199K
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.