Physician profile
John C Williamson
NPI 1073566709
$1,806.30
in general payments reported to CMS, 2019-2025
23 companies · none reported in 2025
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $980 · 2020: $423 · 2021: $243 · 2022: $52.14 · 2023: $88.40 · 2024: $19.84.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $108.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $108.24 |
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 |
|---|---|---|---|
| Astellas Pharma US INC | $240.02 | 2019-2021 | |
| Abbvie INC. | $225.81 | 2019-2023 | Botox |
| Medtronic USA, INC. | $202.79 | 2019 | |
| Janssen Biotech, INC. | $190.77 | 2019-2021 | |
| Pfizer INC. | $168.16 | 2019-2020 | |
| Endo Pharmaceuticals INC. | $149.83 | 2019-2020 | |
| Amgen INC. | $98.07 | 2019-2021 | |
| Boston Scientific Corporation | $95.20 | 2019-2024 | Intracept |
| Relievant Medsystems, INC. | $67.79 | 2022-2023 | Intracept |
| Antares Pharma, INC. | $49.60 | 2019 | |
| Convatec INC. | $44.49 | 2019-2020 | |
| Dendreon Pharmaceuticals LLC | $44.11 | 2019-2020 | |
| Therapeuticsmd, INC. | $34.33 | 2019 | |
| Myriad Genetic Laboratories, INC. | $30.37 | 2020-2021 | |
| Becton, Dickinson and Company | $26.87 | 2022 |
Show all 23 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Bard Peripheral Vascular, INC. | $23.77 | 2023 | |
| Blue Earth Diagnostics | $20.95 | 2020 | |
| Allergan, INC. | $20.87 | 2021 | |
| Tolmar Pharmaceuticals, INC. | $15.32 | 2021 | |
| Acerus Pharmaceuticals Corporation | $15.15 | 2021 | |
| Ambu INC. | $14.41 | 2021 | |
| Aytu Biopharma, INC. | $14.20 | 2019 | |
| Urogen Pharma, INC. | $13.42 | 2020 |
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 John Williamson 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.