Cones
Payments companies reported to CMS as associated with Cones. "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 Cones, 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 Cones
These are the largest totals companies reported as associated with Cones. 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) |
|---|---|---|---|
| Ronald Hillock | Las Vegas, NV | Orthopaedic Surgery | $10,205.58 |
| Charlie Yang | Denver, CO | Orthopaedic Surgery | $10,172.44 |
| David So | Newport Beach, CA | Orthopaedic Surgery | $9,976.11 |
| Matthew Barber | Mobile, AL | Orthopaedic Surgery | $1,575.00 |
| Derek Amanatullah | Stanford, CA | Adult Reconstructive Orthopaedic Surgery | $1,200.00 |
| Herrick Siegel | Birmingham, AL | Orthopaedic Surgery | $1,078.37 |
| Timothy Kavanaugh | Scottsdale, AZ | Orthopaedic Surgery | $772.27 |
| Mark Tuttle | Denver, CO | Adult Reconstructive Orthopaedic Surgery | $325.84 |
Prescribed Cones?
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.