Physician profile
Gregory P Warren
NPI 1154309243
$1,052.67
in general payments reported to CMS, 2019-2025
25 companies · none reported in 2025
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $613 · 2020: $141 · 2021: $87.02 · 2022: $193 · 2023: $18.31.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $18.31.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $18.31 |
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 |
|---|---|---|---|
| Merck Sharp & Dohme LLC | $167.67 | 2019-2020 | |
| Janssen Biotech, INC. | $99.95 | 2022 | |
| Amgen INC. | $98.05 | 2019-2023 | Xgeva, Nplate |
| Novartis Pharmaceuticals Corporation | $81.35 | 2019-2020 | |
| Eisai INC. | $75.17 | 2019-2020 | |
| Seagen INC. | $62.63 | 2021-2022 | |
| Pharmacyclics LLC, An Abbvie Company | $55.19 | 2019-2022 | |
| Astrazeneca Pharmaceuticals LP | $54.57 | 2019-2020 | |
| Bayer Healthcare Pharmaceuticals INC. | $48.83 | 2019-2020 | |
| Astellas Pharma US INC | $37.11 | 2019-2020 | |
| Adc Therapeutics America, INC. | $29.57 | 2021-2022 | |
| Pfizer INC. | $28.68 | 2019-2020 | |
| Genentech USA, INC. | $24.96 | 2019 | |
| Incyte Corporation | $24.79 | 2019-2022 | |
| Janssen Scientific Affairs, LLC | $24.23 | 2019 |
Show all 25 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Emd Serono, INC. | $17.66 | 2019 | |
| Daiichi Sankyo INC. | $16.58 | 2019 | |
| Exelixis INC. | $15.97 | 2019 | |
| Lilly USA, LLC | $15.08 | 2020 | |
| Jazz Pharmaceuticals INC. | $13.49 | 2020 | |
| Abbvie INC. | $12.84 | 2019 | |
| Takeda Pharmaceuticals U.S.A., INC. | $12.41 | 2019 | |
| Janssen Pharmaceuticals, INC | $12.06 | 2019 | |
| Gilead Sciences, INC. | $11.92 | 2021 | |
| E.R. Squibb & Sons, L.L.C. | $11.91 | 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 Gregory Warren 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.