Physician profile
Joy W Chang
NPI 1194091827
$42,730.33
in general payments reported to CMS, 2019-2025
9 companies · $7,428 in 2025
The $7,428 reported for 2025 was more than what 92% of Gastroenterology (Internal Medicine) providers received nationally (typical 2025 total: $636).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2021: $6,580 · 2022: $3,852 · 2023: $16K · 2024: $8,905 · 2025: $7,428.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Consulting Fee: $29K · Food and Beverage: $2,341 · Travel and Lodging: $1,070.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Consulting Fee | $28,887.25 |
| Food and Beverage | $2,341.47 |
| Travel and Lodging | $1,070.07 |
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 |
|---|---|---|---|
| Genzyme Corporation | $15,544.82 | 2021-2025 | |
| Takeda Pharmaceuticals U.S.A., INC. | $14,038.20 | 2021-2025 | Eohilia |
| Regeneron Pharmaceuticals, INC. | $5,340.00 | 2023-2025 | Dupixent |
| Regeneron Healthcare Solutions, INC. | $3,459.85 | 2023-2024 | Dupixent |
| E.R. Squibb & Sons, L.L.C. | $2,400.00 | 2024 | |
| Lucid Diagnostics INC. | $1,000.00 | 2021 | |
| Astrazeneca Pharmaceuticals Lp | $465.00 | 2022 | |
| Phathom Pharmaceuticals, INC. | $371.04 | 2024-2025 | Voquezna |
| Sanofi-Aventis U.S. LLC | $111.42 | 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 Joy 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.