Physician profile
Oi Chung
NPI 1104085893
$5,074.63
in general payments reported to CMS, 2019-2025
12 companies · $267 in 2025
The $267 reported for 2025 was more than what a typical Physician Assistant provider received nationally (typical 2025 total: $183).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2021: $976 · 2022: $2,002 · 2023: $579 · 2024: $1,251 · 2025: $267.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $2,097.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $2,096.81 |
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 |
|---|---|---|---|
| Gilead Sciences, INC. | $1,879.64 | 2021-2025 | Vemlidy, Livdelzi, Epclusa |
| Abbvie INC. | $1,664.68 | 2021-2025 | |
| Eko Health, INC. | $399.00 | 2022 | |
| Phathom Pharmaceuticals, INC. | $287.22 | 2024-2025 | Voquezna |
| Astrazeneca Pharmaceuticals LP | $250.00 | 2021 | |
| Madrigal Pharmaceuticals | $244.76 | 2024-2025 | Rezdiffra, Resmetirom |
| Redhill Biopharma INC. | $140.48 | 2022 | |
| Ardelyx, INC. | $112.81 | 2024-2025 | Ibsrela |
| Braintree Laboratories, INC. | $35.44 | 2021 | |
| Bayer Healthcare Pharmaceuticals INC. | $22.56 | 2022 | |
| Aimmune Therapeutics, INC. | $22.09 | 2024 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $15.95 | 2021 |
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 Oi Chung 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.