Gmk Efficiency
Payments companies reported to CMS as associated with Gmk Efficiency. "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 Gmk Efficiency, 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 Gmk Efficiency
These are the largest totals companies reported as associated with Gmk Efficiency. 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) |
|---|---|---|---|
| Michael Hellman | Lees Summit, MO | Orthopaedic Surgery | $1,133.71 |
| Brian Culp | Princeton, NJ | Orthopaedic Surgery | $1,098.25 |
| Ajay Premkumar | Atlanta, GA | Adult Reconstructive Orthopaedic Surgery | $1,050.00 |
| Matthew Christie | Nashville, TN | Adult Reconstructive Orthopaedic Surgery | $750.00 |
| Joseph Greene | Louisville, KY | Orthopaedic Surgery | $700.00 |
| Eric Smith | Boston, MA | Adult Reconstructive Orthopaedic Surgery | $193.98 |
| Adam Olsen | Boston, MA | Orthopaedic Surgery | $137.15 |
| Waleed Al-Hardan | Dansville, NY | Orthopaedic Surgery | $134.96 |
| Shelton Mckenzie | Washington, DC | Foot and Ankle Surgery | $123.50 |
| Richard Thoms | Niantic, CT | Orthopaedic Surgery | $92.62 |
Prescribed Gmk Efficiency?
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.