Amp
Payments companies reported to CMS as associated with Amp. "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 Amp, 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 Amp
These are the largest totals companies reported as associated with Amp. 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) |
|---|---|---|---|
| Jeffrey Bash | Middletown, CT | Orthopaedic Surgery of The Spine | $212,709.41 |
| Joseph Aferzon | Portland, CT | Surgery | $154,875.89 |
| Alexander Iezza | Santa Rosa, CA | Orthopaedic Surgery | $78,093.16 |
| Keneth Strenge | Paducah, KY | Orthopaedic Surgery of The Spine | $77,181.09 |
| Clint Hill | Paducah, KY | Orthopaedic Surgery | $44,431.06 |
| Gene Massey | Myrtle Beach, SC | Orthopaedic Surgery of The Spine | $41,750.00 |
| Christopher Brown | Durham, NC | Orthopaedic Surgery | $23,750.00 |
| Frank Valone | Saint Louis, MO | Orthopaedic Surgery | $16,743.65 |
| Alp Ozpinar | Springfield, OR | Neurological Surgery | $11,000.00 |
| Andrew Vivas | Valencia, CA | Neurological Surgery | $10,500.00 |
Prescribed Amp?
See what its makers reported for your doctor. Two steps, private, no account.
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.