Physician profile
John P Hammerstein
NPI 1265573307
$9,944.50
in general payments reported to CMS, 2019-2025
11 companies · $128 in 2025
The $128 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: $6,050 · 2020: $1,267 · 2021: $2,412 · 2022: $14.98 · 2023: $54.48 · 2024: $18.25 · 2025: $128.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $201.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $200.70 |
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 |
|---|---|---|---|
| Crossroads Orthopedics, LLC | $3,667.00 | 2020-2021 | |
| Smith+Nephew, INC. | $2,463.63 | 2019-2025 | Visionaire, Real Intelligence, Journey II |
| Wright Medical Technology, INC. | $1,829.70 | 2019 | |
| Djo, LLC | $1,250.00 | 2019 | |
| Arthrex, INC. | $423.74 | 2019 | |
| Medical Device Business Services, INC. | $105.15 | 2019 | |
| Trilliant Surgical LLC. | $91.39 | 2025 | Arsenal Ankle |
| Stryker Corporation | $46.38 | 2019 | |
| Avanos Medical | $32.13 | 2019 | |
| Orthofix Medical, INC. | $20.40 | 2025 | Physio-Stim |
| Angiodynamics, INC. | $14.98 | 2022 |
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 Hammerstein 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.