Physician profile
Ian Greenberg
NPI 1649791542
$6,579.89
in general payments reported to CMS, 2019-2025
18 companies · $175 in 2025
The $175 reported for 2025 was less than what a typical Gastroenterology (Internal Medicine) provider received nationally (typical 2025 total: $636).
See the full distribution for Gastroenterology (Internal Medicine)
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2020: $202 · 2021: $870 · 2022: $1,280 · 2023: $2,067 · 2024: $1,986 · 2025: $175.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Travel and Lodging: $2,116 · Food and Beverage: $2,112.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Travel and Lodging | $2,116.02 |
| Food and Beverage | $2,111.99 |
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 |
|---|---|---|---|
| Boston Scientific Corporation | $2,197.55 | 2021-2025 | Apollo Esg System, Resolution 360 Clip, Radial Jaw 4 |
| Abbvie INC. | $1,231.15 | 2021-2024 | |
| Wilson Cook Medical Incorporated | $756.72 | 2023 | Fusion |
| Erbe USA INC | $470.29 | 2020-2022 | |
| E.R. Squibb & Sons, L.L.C. | $338.31 | 2021-2024 | Zeposia |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $257.20 | 2021 | |
| Gilead Sciences, INC. | $242.02 | 2020-2022 | |
| Intercept Pharmaceuticals, INC. | $229.83 | 2022-2023 | Ocaliva |
| Cook Medical LLC | $177.63 | 2023 | Hemospray |
| Olympus America INC. | $145.05 | 2024 | Endoclot Phs |
| Ardelyx, INC. | $111.46 | 2023 | Ibsrela |
| Apollo Endosurgery US INC | $111.12 | 2022-2023 | Overstitch Endoscopic Suturing System |
| Regeneron Healthcare Solutions, INC. | $100.63 | 2022 | |
| Fujifilm Healthcare Americas Corporation | $75.00 | 2023 | |
| Pentax of America, INC. | $74.91 | 2022 |
Show all 18 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Laborie Medical Technologies Corp. | $22.84 | 2022 | |
| Takeda Pharmaceuticals U.S.A., INC. | $20.97 | 2023 | Gattex |
| Celgene Corporation | $17.21 | 2023 | Zeposia |
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 Ian Greenberg 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.