Vivigen Mis Delivery System
Payments companies reported to CMS as associated with Vivigen Mis Delivery System. "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 Vivigen Mis Delivery System, 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 Vivigen Mis Delivery System
These are the largest totals companies reported as associated with Vivigen Mis Delivery System. 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) |
|---|---|---|---|
| Shirvinda Wijesekera | Hamden, CT | Orthopaedic Surgery of The Spine | $54,241.99 |
| Peter Grossi | Raleigh, NC | Neurological Surgery | $9,869.10 |
| Raul Vasquez-Castellanos | Miami, FL | Neurological Surgery | $6,142.50 |
| Sep Bady | Las Vegas, NV | Orthopaedic Surgery | $805.10 |
| Efrem Cox | Las Vegas, NV | Neurological Surgery | $673.94 |
| Tushar Patel | Chevy Chase, MD | Orthopaedic Surgery | $667.89 |
| Gary Flangas | Las Vegas, NV | Neurological Surgery | $652.64 |
| Angela Murray | Fortuna, CA | Medical | $606.35 |
| Ronald Koe | Henderson, NV | Orthopaedic Surgery | $606.21 |
| Debra Nelson | Las Vegas, NV | Neurological Surgery | $581.48 |
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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.