Ryanodex
Payments companies reported to CMS as associated with Ryanodex. "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 Ryanodex, 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 Ryanodex
These are the largest totals companies reported as associated with Ryanodex. 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) |
|---|---|---|---|
| Daniel Cole | Los Angeles, CA | Anesthesiology | $129.12 |
| Jeffrey Feldman | Philadelphia, PA | Pediatric Anesthesiology | $129.12 |
| Elizabeth Rebello | Houston, TX | Anesthesiology | $129.12 |
| Sampreet Dhaliwal | Pontiac, MI | Anesthesiology | $120.18 |
| Ferdous Nipu | Pontiac, MI | Internal Medicine | $120.17 |
| Shirin Yusubov | Grafton, WI | Anesthesiology | $120.17 |
| Jennifer Semaan | Pontiac, MI | Anesthesiology | $120.17 |
| Bassil Darwich | Pontiac, MI | Anesthesiology | $120.17 |
| Rudram Naidu Muppuri | Detroit, MI | Anesthesiology | $120.17 |
| Andrew Shorr | Washington, DC | Pulmonary Disease | $95.53 |
Prescribed Ryanodex?
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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.