Surgeon profile
James Karlson, MD
Orthopedic Surgery · Cambridge, MA 02138NPI 1114915261
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.
49 Medicare cases/yr
49 patients
3 procedures
| Procedure | Cases | Trend | Patients |
|---|---|---|---|
| Arthroscopic Rotator Cuff Repair CPT 29827 | 17 | ▲ +21% | 17 |
| Knee Arthroscopy — Both Menisci CPT 29880 | 17 | ▲ +21% | 17 |
| Knee Arthroscopy — Meniscectomy CPT 29881 | 15 | ▼ -29% | 15 |
Industry relationships
CMS Open Payments, CY2025 general payments (published June 2026) — who already pays this surgeon.
Pulling CY2025 industry payments + 7-year history…