Srivats Madhavan
Gastroenterology · Milwaukee, WINPI 1265721021
Payments from drug & device makers
What this record shows
This record is dominated by travel and lodging: $5,010 of the $6,029 with a category attached, or 83.1%. 5 manufacturers reported payments, led by Olympus Corporation Of The Americas at 53.2% of the total. Reporting peaked in 2024 at $3,833 and has fallen 68.7% since, to $1,201 in 2025.
Across 53 payments — averaging $113.75 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Olympus Corporation Of The Americas$3K
- Boston Scientific$2K
- Ambu Inc.$162
- Tempus AI, Inc$110
- Cook Medical LLC$102
What the payments were for
- Travel & lodging$5,01083%
- Food & beverage$1,01917%
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 |
|---|---|---|
| Olympus Corporation Of The Americas | 32 | $3,209 |
| Boston Scientific | 17 | $2,446 |
| Ambu Inc. | 2 | $162 |
| Tempus AI, Inc | 1 | $110 |
| Cook Medical LLC | 1 | $102 |
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.
How this compares
$6,029 in reported general payments places this provider in the 85th percentile of 285 gastroenterology 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 |
|---|---|---|
| Omeprazole | 26 | $533 |
| Gavilyte-GPeg3350/Sod Sulf,bicarb,cl/Kcl | 20 | $275 |
Paid to pharmacies, not to this prescriber.
Other gastroenterology in Milwaukee
- Daniel SteinMilwaukee$227K
- Poonam Beniwal-PatelMilwaukee$108K
- Matthew PellerMilwaukee$63K
- Chetan MittalMilwaukee$53K
- Patrick SanvansonMilwaukee$40K
- Nalini GudaMilwaukee$29K
- Kulwinder DuaMilwaukee$16K
- Lyndon HernandezMilwaukee$15K
- Hassaan ZiaMilwaukee$9K
- Sunil KapurMilwaukee$8K
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.