Physician profile
Thomas Chang
NPI 1689672743
$2,084.97
in general payments reported to CMS, 2019-2025
11 companies · $710 in 2025
The $710 reported for 2025 was more than what a typical Vascular & Interventional Radiology provider received nationally (typical 2025 total: $537).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $28.41 · 2021: $125 · 2022: $304 · 2023: $168 · 2024: $750 · 2025: $710.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $1,628.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $1,628.07 |
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 |
|---|---|---|---|
| Angiodynamics, INC. | $927.20 | 2024-2025 | Auryon Laser System 100-120 Vac, Smart Port Ct |
| Medtronic, INC. | $376.93 | 2021-2023 | Onyx Frontier, Telescope |
| Abbott Laboratories | $334.38 | 2021-2025 | Esprit, Perclose Proglide, Armada |
| Cook Medical LLC | $137.42 | 2025 | Zenith Spiral-Z |
| Inari Medical, INC. | $120.20 | 2021-2023 | Ct Thrombectomy System Kit, Flowtriever Catheter, S |
| Cordis US Corp. | $96.60 | 2025 | Brite Tip Radianz |
| Boston Scientific Corporation | $31.49 | 2022 | |
| Cardiovascular Systems INC. | $17.05 | 2019 | |
| Chiesi USA, INC. | $16.87 | 2022 | |
| Cardiva Medical, INC. | $15.47 | 2022 | |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $11.36 | 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 Thomas Chang 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.