Physician profile
Gregory C Keller
NPI 1285638965
$3,614.49
in general payments reported to CMS, 2019-2025
19 companies · $152 in 2025
The $152 reported for 2025 was less than what a typical Orthopaedic Surgery of The Spine provider received nationally (typical 2025 total: $2,116).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $1,136 · 2020: $838 · 2021: $418 · 2022: $361 · 2023: $565 · 2024: $145 · 2025: $152.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $861.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $861.47 |
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 |
|---|---|---|---|
| The Institute of Musculoskeletal Science and Education | $896.20 | 2020-2021 | |
| Medtronic USA, INC. | $735.52 | 2019 | |
| Camber Spine Technologies LLC | $336.42 | 2020-2023 | |
| Medtronic, INC. | $294.94 | 2021-2023 | Mazor X System, Cd Horizon Spinal System |
| Alphatec Spine, INC | $262.37 | 2021-2022 | |
| Si-Bone, INC. | $251.86 | 2020-2024 | |
| Centinel Spine, LLC | $175.51 | 2019-2020 | |
| Corelink, LLC | $135.81 | 2019 | |
| Medical Device Business Services, INC. | $113.42 | 2019 | |
| Providence Medical Technology, INC. | $82.63 | 2025 | |
| Bioventus LLC | $80.35 | 2024-2025 | Durolane |
| Zimvie INC. | $74.38 | 2023 | |
| Highridge Medical LLC | $44.69 | 2024 | Biomet Spinalpak Non-Invasive Spine Fusion Stimulator System |
| Innovation Technologies INC | $30.17 | 2025 | Irrisept |
| Vertex Pharmaceuticals Incorporated | $22.21 | 2025 |
Show all 19 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Ethicon US, LLC | $21.56 | 2023 | Surgiflo Hemostatic Matrix, Surgicel Nu-Knit, Ethicon |
| Orthofix Medical, INC. | $18.95 | 2023 | Trinity Elite, Forza;Trinity Evolution |
| Csl Behring | $18.78 | 2021 | |
| Cerapedics INC. | $18.72 | 2021 |
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 Keller 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.