Physician profile
Frederick Greenstein
NPI 1174583686
$1,596.59
in general payments reported to CMS, 2019-2025
18 companies · $318 in 2025
The $318 reported for 2025 was less than what a typical Urology provider received nationally (typical 2025 total: $631).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $480 · 2020: $99.54 · 2021: $326 · 2022: $42.62 · 2023: $206 · 2024: $124 · 2025: $318.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $371 · Education: $278.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $370.58 |
| Education | $278.05 |
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 |
|---|---|---|---|
| Astellas Pharma US INC | $678.86 | 2019-2025 | Xtandi |
| Pfizer INC. | $163.84 | 2019-2025 | |
| Sumitomo Pharma America, INC. | $148.10 | 2024-2025 | Orgovyx, Gemtesa |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $96.95 | 2019 | |
| Janssen Biotech, INC. | $87.61 | 2019-2023 | |
| Verity Pharmaceuticals INC. | $82.82 | 2021-2023 | Trelstar |
| Dendreon Pharmaceuticals LLC | $55.07 | 2020-2021 | |
| Medtronic, INC. | $50.00 | 2021 | |
| Ambu INC. | $46.41 | 2021 | |
| Abbvie INC. | $43.02 | 2021-2022 | |
| Merck Sharp & Dohme LLC | $24.57 | 2020 | |
| 180 Medical, INC. | $21.15 | 2019 | |
| Axonics, INC. | $21.05 | 2024 | Axonics |
| Glaxosmithkline, LLC. | $18.18 | 2019 | |
| Myovant Sciences INC. | $16.28 | 2021 |
Show all 18 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Myriad Genetic Laboratories, INC. | $15.50 | 2023 | Prolaris |
| Endo Pharmaceuticals INC. | $14.98 | 2022 | |
| Neotract INC. | $12.20 | 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 Frederick Greenstein 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.
Share this page
Keep an eye on this page
Get an email when the next June refresh changes this page. No account needed.
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.