Xlif
Payments companies reported to CMS as associated with Xlif. "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 Xlif, 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 Xlif
These are the largest totals companies reported as associated with Xlif. 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) |
|---|---|---|---|
| Mark Freeborn | Kirkland, WA | Orthopaedic Surgery of The Spine | $628,589.93 |
| Adam Kanter | Pittsburgh, PA | Neurological Surgery | $187,712.44 |
| Ashish Patel | Elmhurst, IL | Orthopaedic Surgery | $149,992.32 |
| David Okonkwo | Pittsburgh, PA | Neurological Surgery | $141,289.75 |
| Steven Ludwig | Baltimore, MD | Orthopaedic Surgery of The Spine | $131,312.36 |
| Hamid Hassanzadeh | Bethesda, MD | Orthopaedic Surgery | $127,232.62 |
| William Smith | Las Vegas, NV | Neurological Surgery | $108,831.70 |
| Frank Phillips | Chicago, IL | Orthopaedic Surgery of The Spine | $99,166.96 |
| Gregory Mundis | La Jolla, CA | Orthopaedic Surgery of The Spine | $92,706.90 |
| David Xu | Columbus, OH | Neurological Surgery | $74,073.17 |
Prescribed Xlif?
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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.