Surgeon profile
Aaron Clark, MD, PHD
Neurosurgery · San Francisco, CA 94143NPI 1518295815
Database refreshed July 2026Live NPPES registry· Industry payments CY2025ⓘ sources
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Tracked procedure volumes
Latest federal claims release with year-over-year momentum. Orthopedics & cardiology tracked — more specialties coming.
191 Medicare cases/yr
190 patients
5 procedures
| Procedure | Cases | Trend | Patients |
|---|---|---|---|
| Lumbar Laminectomy CPT 63047 | 78 | ▲ +8% | 78 |
| Lumbar Fusion — Posterior CPT 22612 | 56 | ▲ +70% | 56 |
| Lumbar Fusion — Combined (TLIF/PLIF) CPT 22633 | 29 | ▼ -46% | 29 |
| Cervical Fusion (ACDF) CPT 22551 | 16 | ▲ +23% | 15 |
| Lumbar Discectomy CPT 63030 | 12 | ▼ -20% | 12 |
Industry relationships
CMS Open Payments, CY2025 general payments (published June 2026) — who already pays this surgeon.
Pulling CY2025 industry payments + 7-year history…