Abhishek Sundaram
Vascular Surgery · Grafton, WINPI 1104055839
Payments from drug & device makers
What this record shows
This record is dominated by travel and lodging: $3,938 of the $5,847 with a category attached, or 67.3%. 8 manufacturers reported payments, led by W. L. Gore & Associates, Inc. at 28.4% of the total. Reporting peaked in 2019 at $1,791 and has fallen 73.8% since, to $469 in 2025.
Across 40 payments — averaging $146.17 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- W. L. Gore & Associates, Inc.$2K
- Medtronic$1K
- Inari Medical, Inc.$1K
- Penumbra, Inc.$1K
- Silk Road Medical, Inc.$305
- Inquis Medical, Inc.$218
- plus $39 from 2 others
What the payments were for
- Travel & lodging$3,93867%
- Food & beverage$1,90933%
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. | 13 | $1,659 |
| Medtronic(2 entities) | 14 | $1,350 |
| Inari Medical, Inc. | 4 | $1,191 |
| Penumbra, Inc. | 2 | $1,085 |
| Silk Road Medical, Inc. | 3 | $305 |
| Inquis Medical, Inc. | 2 | $218 |
| Abbott | 1 | $24 |
| AbbVie | 1 | $15 |
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.
- EXCLUDER Iliac Branch Endoprosthesis$1,283
- FLOWTRIEVER CATHETER, S$1,191
- CT THROMBECTOMY SYSTEM KIT$1,191
- Indigo System$1,085
- HawkOne$752
- ENROUTE Transcarotid Neuroprotection System$249
- ENROUTE Transcarotid Stent System$249
- ENHANCE Transcarotid Peripheral Access Kit$249
- ENROUTE 0.014 Guidewire$249
- GORE EXCLUDER Thoracoabdominal Branch Endoprosthesis$153
- Aventus$123
- IN.PACT Admiral$121
How this compares
$5,847 in reported general payments places this provider in the 75th percentile of 81 vascular surgery providers in Wisconsin.
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 |
|---|---|---|
| XareltoRivaroxaban | 26 | $23,070 |
| ClopidogrelClopidogrel Bisulfate | 80 | $643 |
| Prednisone | 23 | $32 |
Paid to pharmacies, not to this prescriber.
Other vascular surgery in Grafton
- Stacey LejeuneWausau$105K
- Benjamin HerdrichWausau$90K
- Dai YamanouchiMadison$78K
- Tahlia WeisMarshfield$22K
- Kevin SchoepelWausau$17K
- Tiziano TallaritaEau Claire$15K
- John RobertsonTomah$15K
- Momodou JammehMilwaukee$14K
- Peter RossiMilwaukee$13K
- Nathan KuglerMilwaukee$12K
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.