Physician profile
John Francis Grehan
NPI 1275549784
$187,122.78
in general payments reported to CMS, 2019-2025
22 companies · $41K in 2025
The $41K reported for 2025 was more than what 97% of Thoracic Surgery (Cardiothoracic Vascular Surgery) providers received nationally (typical 2025 total: $796).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $16K · 2020: $36K · 2021: $14K · 2022: $513 · 2023: $34K · 2024: $46K · 2025: $41K.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Royalty Or License: $116K · Food and Beverage: $2,884 · Travel and Lodging: $1,695.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Royalty Or License | $116,163.00 |
| Food and Beverage | $2,883.84 |
| Travel and Lodging | $1,694.75 |
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 |
|---|---|---|---|
| Zimmer Biomet Holdings, INC. | $122,233.40 | 2019-2025 | Sternalock, Sternalock 360 System, Cable-Ready |
| Atricure, INC. | $34,634.70 | 2019-2025 | Synergy Ablation System, Atriclip Laa Exclusion System |
| Jace Medical LLC | $21,388.21 | 2019-2021 | |
| Abbott Laboratories | $6,809.51 | 2019-2023 | Portico, Navitor |
| Edwards Lifesciences Corporation | $996.76 | 2019-2024 | |
| Abiomed | $337.58 | 2023-2025 | Impella |
| Getinge USA Sales, LLC | $194.34 | 2020-2022 | |
| Artivion, INC. | $129.82 | 2023-2025 | On-X Aortic Heart Valve With Conform-X Sewing Ring and Extended Holder, Amds-Ascyrus Medical |
| Wound Management Technologies, INC | $51.91 | 2019 | |
| W. L. Gore & Associates, INC. | $44.06 | 2021 | |
| Pfizer INC. | $36.23 | 2022-2025 | |
| Becton, Dickinson and Company | $33.96 | 2024 | Progel Applicator Spray Tips |
| Smith+Nephew, INC. | $33.70 | 2024 | Stravix |
| Amgen INC. | $32.51 | 2024-2025 | Repatha, Repatha |
| Davol INC. | $26.36 | 2025 | Progel Applicator Spray Tips |
Show all 22 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Lsi Solutions INC | $25.91 | 2024 | Cor-Knot |
| Convatec INC. | $24.33 | 2025 | |
| Intuitive Surgical, INC. | $21.52 | 2019 | |
| Daiichi Sankyo INC. | $20.31 | 2023 | Injectafer |
| Medtronic Vascular, INC. | $17.99 | 2019 | |
| Ethicon US, LLC | $15.49 | 2023 | Ethicon |
| Astrazeneca Pharmaceuticals Lp | $14.18 | 2023 | Farxiga |
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 John Grehan 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.