Physician profile
Ashwin Viswanathan
NPI 1699917047
$185,290.15
in general payments reported to CMS, 2019-2025
12 companies · $30K in 2025
The $30K reported for 2025 was more than what 92% of Neurological Surgery providers received nationally (typical 2025 total: $604).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $37K · 2020: $5,404 · 2021: $1,762 · 2022: $39K · 2023: $58K · 2024: $14K · 2025: $30K.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Compensation For Services Other Than Consulting, Including Serving As Faculty Or As A Speaker At A Venue Other Than A Continuing Education Program: $49K · Travel and Lodging: $24K · Consulting Fee: $20K · Food and Beverage: $8,674 · Education: $7.55.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Compensation For Services Other Than Consulting, Including Serving As Faculty Or As A Speaker At A Venue Other Than A Continuing Education Program | $49,037.50 |
| Travel and Lodging | $24,185.72 |
| Consulting Fee | $20,418.75 |
| Food and Beverage | $8,673.56 |
| Education | $7.55 |
Payment-type detail covers 2023-2025; earlier years are included in totals but not broken out here.
Who reported paying
General payments only, as reported to CMS. Product names cover 2023-2025.
| Company | General payments | Years | Top products |
|---|---|---|---|
| Boston Scientific Corporation | $153,854.72 | 2019-2025 | Vercise, Wavewriter Alpha Prime 16, General - Therapies |
| Medtronic, INC. | $15,412.80 | 2021-2025 | Intellis Adaptivestim, Synchromedii, Percept Pc Brainsense |
| Medtronic USA, INC. | $5,112.01 | 2019-2020 | |
| Neuroone Medical Technologies Corporation | $5,000.00 | 2025 | |
| Abbott Laboratories | $2,439.87 | 2019-2025 | Infinity, Proclaim |
| Insightec,INC | $1,695.01 | 2022-2025 | Exablate |
| Si-Bone, INC. | $924.23 | 2019-2020 | |
| Zimmer Biomet Holdings, INC. | $668.36 | 2019 | |
| Saluda Medical Americas, INC. | $120.12 | 2024 | Evoke |
| Stryker Corporation | $43.23 | 2024 | Xia 3 |
| Cmp Pharma, INC. | $19.80 | 2021 |
1 company reported research payments only; those appear in the research section below.
Drugs and devices associated with these payments
CMS records which products a payment was associated with, not how the money was allocated. Association is not allocation: one payment can be associated with several products, and a product listing does not mean the payment was made because of that product. Product detail covers 2023-2025.
If you want to bring it up
Most clinicians are glad to talk about this. A respectful way in:
- "I saw Ashwin Viswanathan listed in the CMS Open Payments database. Can you tell me about your work with those companies?"
- "Is there a generic or alternative to this medication, and would it work as well for me?"
- "What made you choose this particular treatment for my situation?"
These are normal questions. A good clinician will welcome them.
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Source: CMS Open Payments, program years 2019-2025, as reported to CMS by drug and device makers (published June 30, 2026). Drug and device detail covers 2023-2025.