Physician profile
William Mercer
NPI 1780687558
$760.50
in general payments reported to CMS, 2019-2025
16 companies · none reported in 2025
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $565 · 2020: $70.42 · 2024: $125.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $125.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $125.00 |
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 |
|---|---|---|---|
| Janssen Pharmaceuticals, INC | $155.49 | 2019-2020 | |
| Sanofi-Aventis U.S. LLC | $125.00 | 2024 | |
| Amgen INC. | $99.39 | 2019-2020 | |
| Lilly USA, LLC | $94.14 | 2019-2020 | |
| Novartis Pharmaceuticals Corporation | $62.74 | 2019 | |
| Takeda Pharmaceuticals U.S.A., INC. | $41.95 | 2019 | |
| Glaxosmithkline, LLC. | $27.62 | 2019 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | $26.88 | 2019 | |
| Sunovion Pharmaceuticals INC. | $26.73 | 2019 | |
| Allergan, INC. | $17.79 | 2019 | |
| Merck Sharp & Dohme LLC | $16.17 | 2019 | |
| Pfizer INC. | $14.03 | 2019 | |
| Novo Nordisk INC | $13.52 | 2019 | |
| Kowa Pharmaceuticals America, INC. | $13.28 | 2020 | |
| Amarin Pharma, INC. | $12.90 | 2019 |
Show all 16 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $12.87 | 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 William Mercer 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.