Zsfab, INC.
Reporting payments is a legal requirement; large totals often reflect large product portfolios.
$99Kgeneral payments (2019-2025)
$0.00research payments (2019-2025)
27clinicians paid
General and research payments are shown separately, never blended. Research payments are often institution-directed and tied to clinical trials.
General payments by year
General payments only, as reported to CMS. Research payments are totaled above and not included in these bars.
Specialties it works with most
Clinicians with the largest reported totals
Often long-running consulting, speaking, or advisory relationships, which companies must report by law. A large total is not evidence of anything improper.
| Clinician | Location | Specialty | General payments (2019-2025) |
|---|---|---|---|
| Michael Thambuswamy | Tulsa, OK | Neurological Surgery | $25,371.28 |
| Daniel Harwell | Tulsa, OK | Neurological Surgery | $17,620.43 |
| Jeffrey Moore | Oklahoma City, OK | Orthopaedic Surgery of The Spine | $11,859.37 |
| Fernando Villamil | San Juan, PR | Orthopaedic Surgery of The Spine | $10,257.58 |
| Jahangir Asghar | Plantation, FL | Orthopaedic Surgery of The Spine | $8,505.51 |
| Niranjan Kavadi | Birmingham, AL | Orthopaedic Surgery | $6,856.33 |
| Peter Passias | Durham, NC | Orthopaedic Surgery of The Spine | $5,156.76 |
| Jason Pittman | Boston, MA | Orthopaedic Surgery of The Spine | $4,402.38 |
| Anthony Salerni | Gilford, NH | Neurological Surgery | $2,829.01 |
| Michael Hasz | Reston, VA | Orthopaedic Surgery of The Spine | $2,151.91 |
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.