Surgeon profile
Matthew Siljander, MD
Orthopedic Surgery · Newport Beach, CA 92660NPI 1831509355
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.
115 Medicare cases/yr
110 patients
2 procedures
| Procedure | Cases | Trend | Patients |
|---|---|---|---|
| Total Hip Replacement (THA) CPT 27130 | 63 | ▼ -5% | 59 |
| Total Knee Replacement (TKA) CPT 27447 | 52 | ▼ -24% | 51 |
Industry relationships
CMS Open Payments, CY2025 general payments (published June 2026) — who already pays this surgeon.
Pulling CY2025 industry payments + 7-year history…