Amistem
Payments companies reported to CMS as associated with Amistem. "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 Amistem, 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 Amistem
These are the largest totals companies reported as associated with Amistem. 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) |
|---|---|---|---|
| Robert Greenhow | Lone Tree, CO | Orthopaedic Surgery | $373,908.29 |
| David Loucks | Lone Tree, CO | Orthopaedic Surgery | $373,632.30 |
| Tyler Goldberg | Austin, TX | Adult Reconstructive Orthopaedic Surgery | $99,685.06 |
| Derek Amanatullah | Stanford, CA | Adult Reconstructive Orthopaedic Surgery | $41,028.77 |
| Alexander Orem | Lebanon, NH | Orthopaedic Surgery | $31,997.61 |
| Michael Hellman | Lees Summit, MO | Orthopaedic Surgery | $30,792.56 |
| Yale Fillingham | Bryn Mawr, PA | Orthopaedic Surgery | $26,300.70 |
| Lucas Anderson | Coeur D Alene, ID | Orthopaedic Surgery | $21,759.76 |
| Omar Behery | Charlotte, NC | Orthopaedic Surgery | $21,620.75 |
| Friedrich Boettner | New York, NY | Adult Reconstructive Orthopaedic Surgery | $20,600.36 |
Prescribed Amistem?
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.