Tandem
Payments companies reported to CMS as associated with Tandem. "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 Tandem, 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 Tandem
These are the largest totals companies reported as associated with Tandem. 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) |
|---|---|---|---|
| Thorsten Seyler | Durham, NC | Adult Reconstructive Orthopaedic Surgery | $256,514.69 |
| Ran Schwarzkopf | Orange, CA | $132,000.96 | |
| William Lutes | Kenosha, WI | Adult Reconstructive Orthopaedic Surgery | $117,445.86 |
| James Comadoll | Salisbury, NC | Orthopaedic Surgery | $109,235.08 |
| Mathias Bostrom | White Plains, NY | Orthopaedic Surgery | $91,678.57 |
| George Haidukewych | Orlando, FL | Orthopaedic Surgery | $90,676.20 |
| Stephen Duncan | Lexington, KY | Adult Reconstructive Orthopaedic Surgery | $76,668.93 |
| Chancellor Gray | Gainesville, FL | Adult Reconstructive Orthopaedic Surgery | $62,936.40 |
| Mark Schinsky | Des Plaines, IL | Orthopaedic Surgery | $61,643.41 |
| Bradford Waddell | Dallas, TX | Orthopaedic Surgery | $60,457.09 |
Prescribed Tandem?
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.