Physician profile
John A Walker
NPI 1477780344
$27,409.42
in general payments reported to CMS, 2019-2025
21 companies · $7,164 in 2025
The $7,164 reported for 2025 was more than what 87% of Vascular & Interventional Radiology providers received nationally (typical 2025 total: $537).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $973 · 2020: $2,567 · 2021: $3,742 · 2022: $582 · 2023: $546 · 2024: $12K · 2025: $7,164.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Consulting Fee: $10K · Honoraria: $5,000 · Food and Beverage: $2,518 · Travel and Lodging: $2,028.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Consulting Fee | $10,000.00 |
| Honoraria | $5,000.00 |
| Food and Beverage | $2,517.82 |
| Travel and Lodging | $2,027.88 |
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 |
|---|---|---|---|
| Guerbet LLC | $15,000.00 | 2024-2025 | Lipiodol, Lipiodol |
| Argon Medical Devices, INC. | $3,500.00 | 2021 | |
| Shionogi INC | $3,244.08 | 2019-2020 | |
| Boston Scientific Corporation | $2,684.11 | 2021-2025 | Therasphere Y90 Glass Microspheres 10 Gbq, Therasphere Y90 Glass Microspheres 7.0 Gbq (US Commercial) |
| Sirtex Medical INC | $1,439.81 | 2020-2024 | Lava Les (Liquid Embolic System) |
| Cook Medical LLC | $399.68 | 2019-2023 | Rosch-Uchida |
| Medtronic, INC. | $320.73 | 2022-2025 | Kyphon Express II Kyphopak Tray, Emprint |
| Ethicon US, LLC | $187.99 | 2020-2024 | Surgiflo Hemostatic Matrix, Ethicon, Neuwave |
| Bard Peripheral Vascular, INC. | $180.75 | 2020-2022 | |
| Inari Medical, INC. | $162.85 | 2023-2024 | Flowtriever Catheter, S, Ct Thrombectomy System Kit |
| Janssen Pharmaceuticals, INC | $78.62 | 2022-2024 | Xarelto |
| Penumbra, INC. | $43.67 | 2024 | Indigo System |
| Cascination Ag | $29.01 | 2024 | Cas-One Ir |
| Cardiva Medical, INC. | $26.74 | 2022 | |
| Trisalus Life Sciences, INC. | $26.72 | 2021-2022 |
Show all 21 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Siemens Medical Solutions USA, INC. | $18.70 | 2025 | Microthermx Microwave Ablation System |
| Angiodynamics, INC. | $16.02 | 2019 | |
| Baylis Medical Technologies INC. | $14.62 | 2024 | |
| Smiths Medical Asd, INC. | $12.17 | 2019 | |
| Ekos Corporation | $11.81 | 2019 | |
| Dova Pharmaceuticals | $11.34 | 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 John Walker 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.