Riwospine, INC.
Reporting payments is a legal requirement; large totals often reflect large product portfolios.
$90Kgeneral payments (2019-2025)
$0.00research payments (2019-2025)
51clinicians paid
General and research payments are shown separately, never blended. Research payments are often institution-directed and tied to clinical trials.
General payments by year
General payments only, as reported to CMS. Research payments are totaled above and not included in these bars.
Products most associated with its payments
Specialties it works with most
Clinicians with the largest reported totals
Often long-running consulting, speaking, or advisory relationships, which companies must report by law. A large total is not evidence of anything improper.
| Clinician | Location | Specialty | General payments (2019-2025) |
|---|---|---|---|
| Jang Yoon | San Francisco, CA | Neurological Surgery | $30,451.67 |
| Adedayo Ashana | Raleigh, NC | Orthopaedic Surgery | $18,949.45 |
| Mark Mahan | Salt Lake City, UT | Neurological Surgery | $7,854.45 |
| Peter Shin | Albuquerque, NM | Neurological Surgery | $6,349.34 |
| Kevin Huang | Boston, MA | Neurological Surgery | $3,955.31 |
| Andrew Simpson | Boston, MA | Orthopaedic Surgery | $2,644.00 |
| Douglas Linville | Atanta, GA | Orthopaedic Surgery | $2,148.80 |
| Stewart Kerr | Fairbanks, AK | Orthopaedic Surgery of The Spine | $1,405.73 |
| Olaide Ajayi | Fort Worth, TX | Neurological Surgery | $1,392.50 |
| Kenneth Nwosu | Torrance, CA | Orthopaedic Surgery | $1,318.36 |
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.