Mastergraft Matrix Ext
Payments companies reported to CMS as associated with Mastergraft Matrix Ext. "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 Mastergraft Matrix Ext, 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 Mastergraft Matrix Ext
These are the largest totals companies reported as associated with Mastergraft Matrix Ext. 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) |
|---|---|---|---|
| Martin Pham | Los Angeles, CA | Neurological Surgery | $2,220.00 |
| Brett Freedman | Rochester, MN | Orthopaedic Surgery | $1,620.00 |
| Bayard Carlson | Minneapolis, MN | Orthopaedic Surgery | $1,160.00 |
| Johannes Bernbeck | Los Alamitos, CA | Orthopaedic Surgery of The Spine | $185.97 |
| Matthew Schwabero | Beloit, WI | Physician Assistant | $88.54 |
| Michael Roh | Rockford, IL | Orthopaedic Surgery | $88.53 |
| Kamil Okroj | Rockford, IL | Orthopaedic Surgery of The Spine | $88.53 |
| Zubair Ahammad | Toledo, OH | Neurological Surgery | $44.29 |
| Hazem Eltahawy | Detroit, MI | Neurological Surgery | $33.52 |
| Royce Woodroffe | Des Moines, IA | Neurological Surgery | $29.27 |
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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.