Physician profile
Karthik Ragunathan
NPI 1497195457
$1,917.61
in general payments reported to CMS, 2019-2025
8 companies · $43.20 in 2025
The $43.20 reported for 2025 was less than what a typical Gastroenterology (Internal Medicine) provider received nationally (typical 2025 total: $636).
See the full distribution for Gastroenterology (Internal Medicine)
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $1,442 · 2020: $63.82 · 2022: $71.19 · 2023: $47.58 · 2024: $250 · 2025: $43.20.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $340.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $340.30 |
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 |
|---|---|---|---|
| Olympus Corporation of The Americas | $1,161.65 | 2019-2020 | |
| Boston Scientific Corporation | $326.52 | 2019 | |
| Abbvie INC. | $193.38 | 2024-2025 | |
| Celgene Corporation | $118.77 | 2022-2023 | Zeposia |
| Phathom Pharmaceuticals, INC. | $46.99 | 2024-2025 | Voquezna |
| Novo Nordisk INC | $34.08 | 2024 | |
| Pfizer INC. | $18.27 | 2024 | |
| Olympus America INC. | $17.95 | 2019 |
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 Karthik Ragunathan 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.