Procysbi
Payments companies reported to CMS as associated with Procysbi. "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 Procysbi, 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 Procysbi
These are the largest totals companies reported as associated with Procysbi. 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) |
|---|---|---|---|
| Mark Benfield | Cullman, AL | Pediatric Nephrology | $119,229.28 |
| Joshua Zaritsky | Phoenix, AZ | Pediatric Nephrology | $78,518.85 |
| Mark Joseph | Portland, OR | Pediatric Nephrology | $56,554.30 |
| Bonnie Smeryage | Hollywood, FL | Pediatrics (Nurse Practitioner) | $53,352.08 |
| Deborah Stein | Boston, MA | Pediatric Nephrology | $23,267.65 |
| Reza Seyedsadjadi | Boston, MA | Neurology (Psychiatry & Neurology) | $23,178.08 |
| Ladan Golestaneh | New Haven, CT | Nephrology (Internal Medicine) | $22,650.71 |
| Paul Grimm | Palo Alto, CA | Pediatric Nephrology | $20,404.41 |
| Song Ching Ong | Birmingham, AL | Nephrology (Internal Medicine) | $18,242.20 |
| Katherine Twombley | Jacksonville, FL | Pediatric Nephrology | $12,867.73 |
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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.