Physician profile
John A Williamson
NPI 1083732176
$5,527.59
in general payments reported to CMS, 2019-2025
17 companies · $1,970 in 2025
The $1,970 reported for 2025 was more than what 90% of Diagnostic Radiology providers received nationally (typical 2025 total: $112).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $514 · 2020: $237 · 2021: $1,115 · 2022: $780 · 2023: $418 · 2024: $492 · 2025: $1,970.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $2,057 · Travel and Lodging: $824.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $2,056.98 |
| Travel and Lodging | $823.70 |
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 | $1,994.50 | 2022-2025 | Obsidio, Therasphere Y90 Glass Microspheres 7.0 Gbq (US Commercial), Therasphere Y90 Glass Microspheres 10 Gbq |
| Terumo Medical Corporation | $1,276.38 | 2019-2022 | |
| Penumbra, INC. | $455.69 | 2020-2025 | Indigo System, Ruby Coil |
| Sirtex Medical INC | $365.97 | 2023-2025 | Lava Les (Liquid Embolic System) |
| Inari Medical, INC. | $259.42 | 2019-2023 | Ct Thrombectomy System Kit, Flowtriever Catheter, S |
| Stryker Corporation | $191.17 | 2023-2025 | Flowtriever, Photonsaber Y, Photonblade |
| Cook Medical LLC | $153.23 | 2019-2025 | Rosen |
| Medtronic, INC. | $149.56 | 2025 | Emprint, Abre |
| Biocompatibles, INC. | $144.49 | 2019 | |
| Bard Peripheral Vascular, INC. | $142.56 | 2020-2021 | |
| Angiodynamics, INC. | $125.06 | 2022 | |
| Siemens Medical Solutions USA, INC. | $107.27 | 2024 | Artis Icono Floor, Somatom Force |
| Teleflex LLC | $72.42 | 2023 | Oncontrol Powered Driver |
| Bayer Healthcare Pharmaceuticals INC. | $27.92 | 2020 | |
| Cardiva Medical, INC. | $25.72 | 2025 | Cardiva Vascade 5f Vcs |
Show all 17 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Bluewind Medical | $20.76 | 2024 | Revi |
| Argon Medical Devices, INC. | $15.47 | 2021 |
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.