Spinesource, INC.
Reporting payments is a legal requirement; large totals often reflect large product portfolios.
$12Kgeneral payments (2019-2025)
$0.00research payments (2019-2025)
21clinicians 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.
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) |
|---|---|---|---|
| Thorkild Norregaard | Columbia, MO | Neurological Surgery | $5,128.00 |
| Nathan Wanderman | Woodbury, MN | Orthopaedic Surgery of The Spine | $1,387.27 |
| Louis Saeger | Edina, MN | Pain Medicine (Anesthesiology) | $1,063.83 |
| Bruce Dall | Kalamazoo, MI | Orthopaedic Surgery | $881.10 |
| George West | Houston, TX | Neurological Surgery | $769.12 |
| Robert Vande Guchte | Lincoln, NE | Orthopaedic Surgery of The Spine | $620.20 |
| Stephen Esses | Houston, TX | Orthopaedic Surgery of The Spine | $432.36 |
| Mudit Sharma | Manassas, VA | Neurological Surgery | $270.00 |
| Adam Lewis | Corpus Christi, TX | Neurological Surgery | $241.34 |
| Michael Chaparro | Loxahatchee, FL | Neurological Surgery | $228.95 |
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.