Physician profile
Wei-Chung Chen
NPI 1699066381
$4,307.45
in general payments reported to CMS, 2019-2025
18 companies · $735 in 2025
The $735 reported for 2025 was more than what a typical Gastroenterology (Internal Medicine) provider received nationally (typical 2025 total: $636).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $288 · 2020: $315 · 2021: $583 · 2022: $863 · 2023: $722 · 2024: $802 · 2025: $735.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $2,259.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $2,258.86 |
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 |
|---|---|---|---|
| Abbvie INC. | $2,647.36 | 2019-2025 | Skyrizi, Rinvoq, Linzess |
| Janssen Biotech, INC. | $638.63 | 2019-2025 | Tremfya, Stelara |
| Merck Sharp & Dohme LLC | $194.35 | 2019-2024 | Dificid, Zinplava |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $163.52 | 2019-2023 | Xifaxan |
| Genzyme Corporation | $106.87 | 2022-2025 | |
| Takeda Pharmaceuticals U.S.A., INC. | $100.96 | 2019-2024 | Entyvio |
| Celgene Corporation | $90.72 | 2021-2024 | Zeposia |
| Aimmune Therapeutics, INC. | $48.64 | 2025 | Zenpep, Vowst |
| Ardelyx, INC. | $47.27 | 2023-2024 | Ibsrela |
| Pfizer INC. | $43.95 | 2021-2022 | |
| Redhill Biopharma INC. | $43.84 | 2020 | |
| Lilly USA, LLC | $41.76 | 2024-2025 | Omvoh |
| Qol Medical, LLC | $36.94 | 2019-2020 | |
| Medtronic, INC. | $25.36 | 2021 | |
| Regeneron Healthcare Solutions, INC. | $21.98 | 2023 | Dupixent |
Show all 18 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Ironwood Pharmaceuticals, INC | $20.43 | 2024 | |
| Allergan, INC. | $19.55 | 2019 | |
| Gilead Sciences, INC. | $15.32 | 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 Wei-Chung Chen 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.