Physician profile
Gregory Mcmahon
NPI 1295116218
$79,201.74
in general payments reported to CMS, 2019-2025
43 companies · $56K in 2025
The $56K reported for 2025 was more than what 99% of Urology providers received nationally (typical 2025 total: $631).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2020: $37.38 · 2021: $440 · 2022: $476 · 2023: $3,915 · 2024: $18K · 2025: $56K.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Consulting Fee: $43K · Compensation For Services Other Than Consulting, Including Serving As Faculty Or As A Speaker At A Venue Other Than A Continuing Education Program: $21K · Food and Beverage: $9,976 · Travel and Lodging: $4,102 · Education: $103.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Consulting Fee | $43,239.51 |
| Compensation For Services Other Than Consulting, Including Serving As Faculty Or As A Speaker At A Venue Other Than A Continuing Education Program | $20,828.00 |
| Food and Beverage | $9,976.30 |
| Travel and Lodging | $4,101.85 |
| Education | $103.06 |
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 |
|---|---|---|---|
| Janssen Biotech, INC. | $47,739.75 | 2021-2025 | Carvykti, Rybrevant, Erleada |
| Janssen Scientific Affairs, LLC | $9,471.30 | 2023-2025 | Erleada, Akeega |
| Bayer Healthcare Pharmaceuticals INC. | $5,003.82 | 2023-2025 | |
| Ferring Pharmaceuticals INC. | $4,767.70 | 2025 | Adstiladrin |
| Astellas Pharma US INC | $2,980.03 | 2022-2025 | Xtandi |
| Telix Pharmaceuticals | $1,998.70 | 2023-2025 | Illuccix |
| Astrazeneca Pharmaceuticals LP | $1,561.25 | 2025 | Imfinzi, Lynparza |
| Janssen Global Services, LLC | $1,266.60 | 2025 | |
| Boston Scientific Corporation | $718.66 | 2020-2025 | Spaceoar System, Rezum Generator, Spaceoar Vue System - 10ml |
| Dendreon Pharmaceuticals LLC | $563.20 | 2022-2025 | Provenge |
| Teleflex LLC | $381.56 | 2021-2024 | Urolift, Solesta |
| Immunitybio, INC. | $378.35 | 2025 | |
| Tolmar, INC. | $266.40 | 2023-2025 | Jatenzo, Eligard |
| Angiodynamics, INC. | $242.00 | 2023-2025 | Nanoknife |
| Novartis Pharmaceuticals Corporation | $236.92 | 2024-2025 |
Show all 43 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Pfizer INC. | $195.61 | 2023-2025 | |
| Axonics, INC. | $165.72 | 2022-2023 | Axonics |
| Merck Sharp & Dohme LLC | $159.16 | 2021-2025 | Keytruda, Lynparza |
| Abbvie INC. | $133.52 | 2024-2025 | |
| Sumitomo Pharma America, INC. | $117.81 | 2024-2025 | Orgovyx, Gemtesa |
| Coloplast Corp | $97.54 | 2021 | |
| Verity Pharmaceuticals INC. | $82.75 | 2023-2025 | Trelstar |
| Myriad Genetic Laboratories, INC. | $79.90 | 2022-2023 | Prolaris |
| Bioprotect Medical, INC. | $74.53 | 2024-2025 | Bioprotect Balloon Implant System |
| Urogen Pharma, INC. | $73.44 | 2023-2025 | Jelmyto |
| Dentsply Ih Ab | $47.33 | 2025 | Lofric |
| Calyxo, INC. | $45.05 | 2024-2025 | Cvac Aspiration System |
| Civco Medical Instruments | $38.09 | 2025 | |
| Medtronic, INC. | $31.39 | 2024 | Abre |
| Progenics Pharmaceuticals, INC. | $29.80 | 2025 | |
| Profound Medical Corp. | $28.01 | 2025 | Tulsa-Pro |
| Millicent US INC | $23.41 | 2025 | Intrarosa |
| Accord Healthcare, INC. | $23.17 | 2023 | |
| Olympus America INC. | $21.54 | 2025 | Itind System |
| Mimedx Group, INC. | $21.31 | 2025 | |
| Vertex Pharmaceuticals Incorporated | $20.39 | 2025 | |
| Sandoz INC. | $19.29 | 2025 | Jubbonti |
| Tempus Ai, INC | $17.90 | 2024 | |
| 180 Medical, INC. | $17.75 | 2023 | |
| Avation Medical, INC. | $17.01 | 2025 | Vivally System |
| Antares Pharma, INC. | $16.34 | 2025 | Xyosted |
| Endo USA, INC. | $14.60 | 2025 | Xiaflex |
| Daiichi Sankyo INC. | $13.14 | 2020 |
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 Gregory Mcmahon 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.