Physician profile
Brian K Chang
NPI 1245364926
$12,978.48
in general payments reported to CMS, 2019-2025
16 companies · $143 in 2025
The $143 reported for 2025 was less than what a typical Radiation Oncology provider received nationally (typical 2025 total: $172).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $2,494 · 2021: $124 · 2022: $8,956 · 2023: $80.22 · 2024: $1,182 · 2025: $143.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Consulting Fee: $1,050 · Food and Beverage: $355.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Consulting Fee | $1,050.00 |
| Food and Beverage | $355.28 |
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 |
|---|---|---|---|
| Myovant Sciences INC. | $8,955.71 | 2022 | |
| Viewray Technologies INC | $2,428.21 | 2019 | |
| Astrazeneca Pharmaceuticals LP | $1,050.00 | 2024 | Tagrisso, Imfinzi |
| Reflexion Medical, INC. | $125.00 | 2023-2025 | Reflexion Medical Radiotherapy System |
| Regeneron Healthcare Solutions, INC. | $123.50 | 2021 | |
| Sumitomo Pharma America, INC. | $69.74 | 2023-2025 | Orgovyx |
| Novartis Pharmaceuticals Corporation | $57.13 | 2023-2025 | |
| Merck Sharp & Dohme LLC | $28.91 | 2024-2025 | Keytruda |
| Varian Medical Systems, INC. | $27.10 | 2019 | |
| Accuray Incorporated | $26.16 | 2019 | |
| Siemens Medical Solutions USA, INC. | $23.37 | 2024 | Truebeam |
| Bayer Healthcare Pharmaceuticals INC. | $20.24 | 2024 | |
| Progenics Pharmaceuticals, INC. | $16.61 | 2023 | Pylarify |
| Boston Scientific Corporation | $14.28 | 2025 | Spaceoar Vue System - 10ml |
| Elekta, INC. | $12.52 | 2019 |
1 company reported research payments only; those appear in the research section below.
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 Brian 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.