Physician profile
William E Perez
NPI 1063455590
$1,734.73
in general payments reported to CMS, 2019-2025
6 companies · $1,556 in 2025
The $1,556 reported for 2025 was more than what 96% of Anesthesiology providers received nationally (typical 2025 total: $58.09).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2022: $163 · 2024: $15.86 · 2025: $1,556.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Consulting Fee: $1,540 · Food and Beverage: $31.51.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Consulting Fee | $1,540.00 |
| Food and Beverage | $31.51 |
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 |
|---|---|---|---|
| Renalytix Ai, INC. | $1,540.00 | 2025 | Kidneyintelx Blood Collection Convenience Kit |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $46.36 | 2022-2025 | Xifaxan |
| Redhill Biopharma INC. | $45.50 | 2022 | |
| Ironwood Pharmaceuticals, INC | $45.16 | 2022 | |
| Ardelyx, INC. | $42.86 | 2022 | |
| Takeda Pharmaceuticals U.S.A., INC. | $14.85 | 2022 |
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 Perez 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.