Physician profile
Michael C Duffy
NPI 1982693677
$1,299.74
in general payments reported to CMS, 2019-2025
16 companies · $165 in 2025
The $165 reported for 2025 was less than what a typical Gastroenterology (Internal Medicine) provider received nationally (typical 2025 total: $636).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $150 · 2021: $12.72 · 2022: $131 · 2023: $564 · 2024: $277 · 2025: $165.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $906 · Education: $99.99.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $905.67 |
| Education | $99.99 |
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 |
|---|---|---|---|
| Janssen Biotech, INC. | $318.30 | 2023-2025 | Tremfya, Stelara |
| Abbvie INC. | $232.26 | 2023-2025 | Skyrizi, Rinvoq |
| Pfizer INC. | $151.62 | 2019-2023 | |
| E.R. Squibb & Sons, L.L.C. | $122.33 | 2023 | Zeposia |
| Janssen Scientific Affairs, LLC | $113.40 | 2022 | |
| Genzyme Corporation | $70.25 | 2023-2024 | |
| Celgene Corporation | $50.43 | 2021-2023 | Zeposia |
| Qol Medical, LLC | $41.25 | 2023-2024 | Sucraid, Sucraid |
| Gilead Sciences, INC. | $37.71 | 2023-2024 | |
| Fresenius Kabi USA, LLC | $28.12 | 2024 | Idacio |
| Amgen INC. | $25.18 | 2023 | Avsola |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $24.37 | 2019 | |
| Regeneron Healthcare Solutions, INC. | $23.57 | 2023 | Dupixent |
| Lilly USA, LLC | $23.47 | 2024 | Zepbound, Omvoh |
| Organon LLC | $19.62 | 2023 | Renflexis, Hadlima |
Show all 16 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Takeda Pharmaceuticals U.S.A., INC. | $17.86 | 2022 |
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 Michael Duffy 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.