Sion Surgical Instrument
Payments companies reported to CMS as associated with Sion Surgical Instrument. "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 Sion Surgical Instrument, 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 Sion Surgical Instrument
These are the largest totals companies reported as associated with Sion Surgical Instrument. 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) |
|---|---|---|---|
| Tamara Fountain | Deerfield, IL | Ophthalmic Plastic and Reconstructive Surgery | $47,818.70 |
| Jai Parekh | Woodland Park, NJ | Ophthalmology | $45,985.53 |
| Nathan Radcliffe | New York, NY | Ophthalmology | $43,538.03 |
| Brandon Ayres | Bala Cynwyd, PA | Ophthalmology | $32,320.50 |
| Kuldev Singh | Stanford, CA | Ophthalmology | $31,879.77 |
| Zarmeena Vendal | West Lake Hills, TX | Ophthalmology | $31,002.40 |
| Matthew Brink | Palm Beach Gardens, FL | Glaucoma Specialist | $30,145.23 |
| Michael Yim | Miami, FL | Ophthalmology | $26,837.89 |
| Christopher Spearman | Cranberry Township, PA | Ophthalmology | $25,591.52 |
| Arkadiy Yadgarov | Atlanta, GA | Glaucoma Specialist | $25,355.22 |
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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.