Physician profile
Nathan C Hammel
NPI 1558435644
$1,246.62
in general payments reported to CMS, 2019-2025
15 companies · $37.01 in 2025
The $37.01 reported for 2025 was less than what a typical Orthopaedic Surgery provider received nationally (typical 2025 total: $569).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $239 · 2020: $43.80 · 2021: $192 · 2022: $182 · 2023: $367 · 2024: $186 · 2025: $37.01.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $590.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $590.07 |
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 |
|---|---|---|---|
| Stryker Corporation | $640.31 | 2021-2025 | Mako, Triathlon, Na |
| Lima USA, INC. | $146.43 | 2023 | Lantern Surgical Assistant |
| Onkos Surgical, INC. | $135.07 | 2019 | |
| Next Science LLC | $80.89 | 2021 | |
| Depuy Synthes Sales INC. | $48.23 | 2019-2023 | Orthovisc |
| Bioventus LLC | $47.18 | 2024 | Durolane, Exogen Ultrasound Bone Healing System |
| Pacira Therapeutics, INC. | $27.44 | 2019 | |
| Acumed LLC | $22.75 | 2025 | Acumed |
| Encore Medical, LP | $18.63 | 2020 | |
| Zimmer Biomet Holdings, INC. | $18.53 | 2019 | |
| Endo Pharmaceuticals INC. | $17.34 | 2020 | |
| Sanofi-Aventis U.S. LLC | $16.31 | 2019 | |
| Fidia Pharma USA INC. | $14.46 | 2019 | |
| Innovation Technologies INC | $13.05 | 2023 | Irrisept |
1 company reported research payments only; those appear in the research section below.
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 Nathan Hammel 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.