Physician profile
Prerana Aghamkar Williamson
NPI 1114344207
$37,426.82
in general payments reported to CMS, 2019-2025
5 companies · $9,004 in 2025
The $9,004 reported for 2025 was more than what 93% of Pediatric Gastroenterology providers received nationally (typical 2025 total: $195).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2023: $368 · 2024: $28K · 2025: $9,004.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Compensation For Services Other Than Consulting, Including Serving As Faculty Or As A Speaker At A Venue Other Than A Continuing Education Program: $31K · Travel and Lodging: $3,837 · Consulting Fee: $1,396 · Food and Beverage: $1,387.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Compensation For Services Other Than Consulting, Including Serving As Faculty Or As A Speaker At A Venue Other Than A Continuing Education Program | $30,806.66 |
| Travel and Lodging | $3,837.04 |
| Consulting Fee | $1,396.00 |
| Food and Beverage | $1,387.12 |
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 |
|---|---|---|---|
| Genzyme Corporation | $22,024.80 | 2023-2025 | |
| Regeneron Healthcare Solutions, INC. | $15,322.89 | 2024-2025 | Dupixent |
| Janssen Biotech, INC. | $30.17 | 2025 | Tremfya |
| Celgene Corporation | $28.36 | 2024 | |
| Mirum Pharmaceuticals, INC. | $20.60 | 2025 | Livmarli |
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 Prerana Williamson 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.