Physician profile
Chuan Chang
NPI 1245225341
$2,089.22
in general payments reported to CMS, 2019-2025
18 companies · $516 in 2025
The $516 reported for 2025 was more than what a typical Neurodevelopmental Disabilities (Pediatrics) provider received nationally (typical 2025 total: $136).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $341 · 2021: $26.27 · 2022: $151 · 2023: $204 · 2024: $851 · 2025: $516.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $1,571.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $1,571.01 |
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 |
|---|---|---|---|
| Glaxosmithkline, LLC. | $721.42 | 2021-2025 | Nucala, Bexsero, Penmenvy |
| Bayer Healthcare Pharmaceuticals INC. | $269.05 | 2022-2025 | |
| Aimmune Therapeutics, INC. | $125.03 | 2024 | |
| Astrazeneca Pharmaceuticals Lp | $125.00 | 2024 | Breztri |
| Intuitive Surgical, INC. | $123.44 | 2024 | |
| Kiniksa Pharmaceuticals International, Plc | $108.88 | 2024 | Arcalyst |
| Boehringer Ingelheim Pharmaceuticals, INC. | $100.00 | 2019 | |
| Janssen Pharmaceuticals, INC | $90.00 | 2019 | |
| Collegium Pharmaceutical, INC. | $82.96 | 2025 | Jornay Pm |
| Seqirus USA INC | $78.65 | 2022-2025 | Flucelvax Quadrivalent, Flucelvax |
| Neos Therapeutics, Lp | $77.59 | 2019-2024 | Adzenys Xr-Odt |
| Merck Sharp & Dohme LLC | $39.38 | 2019-2024 | Gardasil, Vaxelis, Vaxneuvance |
| Tris Pharma INC | $35.67 | 2019 | |
| Adlon Therapeutics L.P. | $34.59 | 2019 | |
| Integra Lifesciences Corporation | $31.98 | 2024 | Acclarent Aera |
Show all 18 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Vertical Pharmaceuticals, LLC | $16.84 | 2019 | |
| Ironshore Pharmaceuticals INC. | $15.95 | 2019 | |
| Sanofi Pasteur INC. | $12.79 | 2022 |
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 Chuan 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.