Physician profile
Edward C Chang
NPI 1669461141
$3,710.13
in general payments reported to CMS, 2019-2025
17 companies · $526 in 2025
The $526 reported for 2025 was more than what a typical Internal Medicine provider received nationally (typical 2025 total: $156).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $2,269 · 2020: $123 · 2021: $346 · 2022: $152 · 2023: $148 · 2024: $145 · 2025: $526.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $819.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $819.23 |
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 |
|---|---|---|---|
| Astrazeneca Pharmaceuticals LP | $1,303.62 | 2019-2025 | Breztri, Airsupra |
| Boehringer Ingelheim Pharmaceuticals, INC. | $522.26 | 2019-2023 | Jardiance |
| Pfizer INC. | $424.56 | 2019-2023 | |
| Merck Sharp & Dohme LLC | $284.83 | 2019-2020 | |
| Novartis Pharmaceuticals Corporation | $245.57 | 2019 | |
| Allergan, INC. | $182.63 | 2019 | |
| Janssen Pharmaceuticals, INC | $160.26 | 2019 | |
| Novo Nordisk INC | $151.85 | 2019-2025 | Ozempic |
| Aimmune Therapeutics, INC. | $124.97 | 2025 | Zenpep |
| Amgen INC. | $115.36 | 2019 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $52.17 | 2019 | |
| Astellas Pharma US INC | $31.23 | 2019-2025 | Vyloy |
| Takeda Pharmaceuticals U.S.A., INC. | $31.23 | 2019-2024 | Eohilia |
| Dynavax Technologies Corporation | $27.16 | 2025 | Heplisav-B |
| Lilly USA, LLC | $22.31 | 2019 |
Show all 17 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Radius Health, INC. | $17.89 | 2019 | |
| Daiichi Sankyo INC. | $12.23 | 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 Edward 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.