Si Development
Payments companies reported to CMS as associated with Si Development. "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 Si Development, 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 Si Development
These are the largest totals companies reported as associated with Si Development. 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) |
|---|---|---|---|
| Phillip Esce | Spartanburg, SC | Neurological Surgery | $216.54 |
| Michael Chioffe | Chicago, IL | Orthopaedic Surgery | $216.54 |
| Azmi Nasser | Phoenix, AZ | Physical Medicine & Rehabilitation | $216.54 |
| George Elkanich | Las Vegas, NV | Orthopaedic Surgery of The Spine | $216.54 |
| Jennifer Dais | Peoria, AZ | Interventional Pain Medicine | $216.54 |
| Issada Thongtrangan | Scottsdale, AZ | Orthopaedic Surgery | $216.54 |
| Hugh Mcdermott | Maywood, IL | Physical Medicine & Rehabilitation | $216.54 |
| Daniel Williams | Pinehurst, NC | Orthopaedic Surgery of The Spine | $216.54 |
| Babajide Ogunseinde | Longview, TX | Orthopaedic Surgery | $216.54 |
| George Picetti | Sacramento, CA | Orthopaedic Surgery of The Spine | $216.54 |
Prescribed Si Development?
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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.