Sayee Sundar Alagusundaramoorthy
Nephrology · Madison, WINPI 1932514619
Payments from drug & device makers
What this record shows
This record is dominated by travel and lodging: $3,958 of the $5,942 with a category attached, or 66.6%. Penumbra, Inc. accounts for 71.0% of it on its own, with 7 other manufacturers making up the rest. Reporting peaked in 2023 at $4,119 and has fallen 98.3% since, to $71 in 2025.
Across 27 payments — averaging $220.06 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Penumbra, Inc.$4K
- Bard Peripheral Vascular, Inc.$800
- Argon Medical Devices, Inc.$317
- Medtronic$214
- W. L. Gore & Associates, Inc.$123
- Boston Scientific$120
- plus $147 from 2 others
Across 3 payments — averaging $8244.00 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Bard Peripheral Vascular, Inc.$25K
What the payments were for
- Travel & lodging$3,95867%
- Food & beverage$1,93233%
- Education$521%
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 |
|---|---|---|
| Penumbra, Inc. | 9 | $4,221 |
| Bard Peripheral Vascular, Inc. | 7 | $800 |
| Argon Medical Devices, Inc. | 2 | $317 |
| Medtronic(2 entities) | 3 | $214 |
| W. L. Gore & Associates, Inc. | 3 | $123 |
| Boston Scientific | 1 | $120 |
| Terumo Medical Corporation | 1 | $88 |
| Covidien LP | 1 | $59 |
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.
- Penumbra Coil 400$2,417
- Indigo System$1,687
- WAVELINQ$186
- Clot Management$175
- CLEANER$142
- ANGIOJET$120
- Argyle$113
- Pristine$113
How this compares
$5,942 in reported general payments places this provider in the 85th percentile of 173 nephrology 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 |
|---|---|---|
| EliquisApixaban | 20 | $15,381 |
| Nifedipine ErNifedipine | 18 | $323 |
| Torsemide | 26 | $239 |
| Losartan Potassium | 13 | $137 |
| Carvedilol | 38 | $125 |
| Spironolactone | 12 | $35 |
Paid to pharmacies, not to this prescriber.
Other nephrology in Madison
- Sandesh ParajuliMadison$12K
- Didier MandelbrotMadison$7K
- Andrey VavrenyukMadison$2K
- Gabino Maza RodasMadison$1K
- Nolan InterialMadison$815
- Kevin RegnerMilwaukee$246K
- Rosanna RanieriKenosha$84K
- Micah ChanFitchburg$80K
- Rishi KoraGlendale$57K
- Manohar AhujaMilwaukee$35K
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.