Physician profile
Warren Alperstein
NPI 1518220714
$488.83
in general payments reported to CMS, 2019-2025
7 companies · $26.03 in 2025
The $26.03 reported for 2025 was less than what a typical Pediatric Hematology-Oncology provider received nationally (typical 2025 total: $207).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $34.54 · 2020: $21.12 · 2022: $44.80 · 2023: $108 · 2024: $254 · 2025: $26.03.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $305 · Education: $82.99.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $305.38 |
| Education | $82.99 |
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 |
|---|---|---|---|
| Sobi, INC | $337.20 | 2023-2024 | |
| Novartis Pharmaceuticals Corporation | $60.57 | 2019-2025 | |
| Amgen INC. | $25.55 | 2022 | |
| Adaptive Biotechnologies Corporation | $25.14 | 2023 | Clonoseq |
| Jazz Pharmaceuticals INC. | $21.12 | 2020 | |
| Duchesnay USA Incorporated | $19.25 | 2022 |
1 company reported research payments only; those appear in the research section below.
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 Warren Alperstein 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.