GlassScriptPhysician profile
William J Tsai
NPI 1952356560
$2,378.85
in general payments reported to CMS, 2019-2025
18 companies · $81.02 in 2025
The $81.02 reported for 2025 was less 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: $702 · 2020: $295 · 2021: $442 · 2022: $209 · 2023: $468 · 2024: $182 · 2025: $81.02.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $731.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $731.16 |
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 | $492.10 | 2019-2023 | Wegovy |
| Lilly USA, LLC | $349.41 | 2020-2023 | Mounjaro |
| Astrazeneca Pharmaceuticals LP | $326.09 | 2019-2025 | Farxiga, Airsupra |
| Covidien LP | $172.12 | 2019 | |
| Astellas Pharma US INC | $125.13 | 2020-2022 | |
| Si-Bone, INC. | $125.00 | 2019 | |
| Pfizer INC. | $120.56 | 2020 | |
| Amgen INC. | $120.39 | 2024 | Repatha |
| Idorsia Pharmaceuticals US INC | $113.46 | 2023 | Quviviq |
| Esperion Therapeutics, INC. | $96.50 | 2020-2021 | |
| Allergan, INC. | $79.19 | 2019-2020 | |
| Amarin Pharma, INC. | $63.56 | 2020-2021 | |
| Merck Sharp & Dohme LLC | $51.87 | 2020-2021 | |
| Abbvie INC. | $50.09 | 2021 | |
| Exact Sciences Corporation | $31.18 | 2025 | The Cologuard Plus Collection Kit |
Show all 18 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Novartis Pharmaceuticals Corporation | $25.05 | 2019 | |
| Cook Medical LLC | $23.16 | 2021 | |
| Janssen Pharmaceuticals, INC | $13.99 | 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 William Tsai 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.