Physician profile
David P Chang
NPI 1487638581
$13,161.66
in general payments reported to CMS, 2019-2025
54 companies · $1,553 in 2025
The $1,553 reported for 2025 was more than what 91% of Internal Medicine providers received nationally (typical 2025 total: $156).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $2,106 · 2020: $1,645 · 2021: $2,205 · 2022: $1,958 · 2023: $1,772 · 2024: $1,921 · 2025: $1,553.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $5,246.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $5,246.12 |
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 |
|---|---|---|---|
| Novo Nordisk INC | $1,602.44 | 2019-2025 | Ozempic, Rybelsus, Tresiba |
| Astrazeneca Pharmaceuticals LP | $1,257.67 | 2019-2025 | Farxiga, Airsupra, Breztri |
| Abbvie INC. | $1,238.92 | 2019-2025 | Vraylar, Ubrelvy, Qulipta |
| Pfizer INC. | $1,087.83 | 2019-2025 | |
| Lilly USA, LLC | $1,057.78 | 2019-2025 | Mounjaro, Zepbound, Jardiance |
| Glaxosmithkline, LLC. | $663.75 | 2020-2025 | Trelegy Ellipta, Shingrix, Arexvy |
| Novartis Pharmaceuticals Corporation | $524.65 | 2019-2025 | |
| Janssen Pharmaceuticals, INC | $400.90 | 2020-2025 | Spravato |
| Takeda Pharmaceuticals U.S.A., INC. | $374.47 | 2019-2023 | Trintellix |
| Sanofi-Aventis U.S. LLC | $373.81 | 2019-2022 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $368.34 | 2019-2025 | Xifaxan |
| Boehringer Ingelheim Pharmaceuticals, INC. | $365.77 | 2019-2025 | Jardiance, Synjardy, Tradjenta |
| Amgen INC. | $340.47 | 2019-2023 | Repatha, Otezla |
| Allergan, INC. | $279.34 | 2019-2020 | |
| Astellas Pharma US INC | $264.24 | 2019-2024 | Veozah |
Show all 54 companies
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 David 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.