Surgeon profile
Colleen Hammerstone, PA-C
Physician Assistant · Allentown, PA 18103NPI 1285038166
Database refreshed July 2026Live NPPES registry· Industry payments CY2025ⓘ sources
Checking live NPPES registry…
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Tracked procedure volumes
Latest federal claims release with year-over-year momentum. Orthopedics & cardiology tracked — more specialties coming.
127 Medicare cases/yr
120 patients
1 procedure
| Procedure | Cases | Trend | Patients |
|---|---|---|---|
| Total Knee Replacement (TKA) CPT 27447 | 127 | ▲ +18% | 120 |
Industry relationships
CMS Open Payments, CY2025 general payments (published June 2026) — who already pays this surgeon.
Pulling CY2025 industry payments + 7-year history…