Physician profile
Mark I Eisenfeld
NPI 1407016462
$428.30
in general payments reported to CMS, 2019-2025
10 companies · none reported in 2025
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $113 · 2020: $168 · 2021: $16.23 · 2022: $15.62 · 2023: $86.79 · 2024: $28.69.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $115.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $115.48 |
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 |
|---|---|---|---|
| Astrazeneca Pharmaceuticals LP | $123.26 | 2020 | |
| Genzyme Corporation | $113.12 | 2019 | |
| Myriad Genetic Laboratories, INC. | $65.34 | 2023 | Prolaris |
| Mentor Worldwide LLC | $30.04 | 2020 | |
| Takeda Pharmaceuticals U.S.A., INC. | $21.45 | 2023 | Entyvio |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $16.23 | 2021 | |
| Mercury Enterprises, INC. | $15.62 | 2022 | |
| Janssen Biotech, INC. | $14.66 | 2024 | Tremfya |
| Vivus LLC | $14.55 | 2020 | |
| Glaukos Corporation | $14.03 | 2024 | Istent Trabecular Micro-Bypass System Model Is3 |
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 Mark Eisenfeld 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.