Sx-One Microknife
Payments companies reported to CMS as associated with Sx-One Microknife. "Associated with" is CMS's wording: it links a payment to a product without saying the money was spent on it.
By year
Payments reported as associated with Sx-One Microknife, per program year, as reported to CMS.
Who makes it
Specialties most often involved
Where the associated payments went, by the receiving clinician's specialty.
Clinicians most associated with Sx-One Microknife
These are the largest totals companies reported as associated with Sx-One Microknife. They are typically speaking or consulting arrangements, which companies must report by law; appearing here is not evidence of anything improper.
| Clinician | Location | Specialty | Associated payments (2023-2025) |
|---|---|---|---|
| Richard Schaefer | Fond Du Lac, WI | Plastic and Reconstructive Surgery | $130,376.53 |
| Victor Marwin | Lexington, KY | Orthopaedic Surgery | $83,243.38 |
| Kevin Chung | Ann Arbor, MI | Plastic Surgery | $52,141.69 |
| Matthew Kirsch | Rochester, MN | Orthopaedic Surgery | $48,650.03 |
| Michael Cohn | Boca Raton, FL | Hand Surgery | $42,869.50 |
| Steven Niedermeier | Arlington, TX | Hand Surgery | $42,821.26 |
| Keith Nord | Jackson, TN | Surgery of The Hand (Surgery) | $31,095.22 |
| John Nelson | Raleigh, NC | Orthopaedic Surgery | $20,224.65 |
| Paul Paterson | Vero Beach, FL | Hand Surgery | $19,300.20 |
| Ariana Demers | Sonora, CA | Sports Medicine (Orthopaedic Surgery) | $16,787.54 |
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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.