Topera, INC.
Reporting payments is a legal requirement; large totals often reflect large product portfolios.
$2.4Mgeneral payments (2019-2025)
$0.00research payments (2019-2025)
16clinicians 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) |
|---|---|---|---|
| Sujata Narayan | Stanford, CA | Family Medicine | $1,153,143.16 |
| Karen Underwood | Scottsdale, AZ | Pediatric Critical Care Medicine | $775,823.60 |
| Sanjiv Narayan | Stanford, CA | Clinical Cardiac Electrophysiology | $337,157.67 |
| Anil Garde | Riverside, CA | Gastroenterology (Internal Medicine) | $18,743.57 |
| Benzy Padanilam | Indianapolis, IN | Clinical Cardiac Electrophysiology | $11,307.40 |
| William Denman | Boston, MA | Anesthesiology | $11,307.40 |
| Eric Prystowsky | Indianapolis, IN | Clinical Cardiac Electrophysiology | $11,015.02 |
| Marcus Schamberger | Indianapolis, IN | Pediatric Cardiology | $9,807.41 |
| Sotirios Tsimikas | San Diego, CA | Interventional Cardiology | $9,045.92 |
| Gregory Altemose | Miramar Beach, FL | Clinical Cardiac Electrophysiology | $9,045.92 |
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.