Surgeon profile

John Hamilton, MD

Orthopedic Surgery · Marshalltown, IA 50158NPI 1982720231

Database refreshed July 2026Live NPPES registry· Industry payments CY2025ⓘ sources

Contactverified live in NPPES · Jul 7, 2026

Active NPI421 E MERLE HIBBS BLVD, MARSHALLTOWN, IA 50158☎ 641-844-2213

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Operates atCMS affiliations, refreshed monthly

UNITYPOINT HEALTH - MARSHALLTOWN · MARSHALLTOWN, IAFRANKLIN GENERAL HOSPITAL · HAMPTON, IAMARY GREELEY MEDICAL CENTER · AMES, IA

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Tracked procedure volumes

Latest federal claims release with year-over-year momentum. Orthopedics & cardiology tracked — more specialties coming.

37 Medicare cases/yr

36 patients

2 procedures

Procedure	Cases	Trend	Patients
Total Knee Replacement (TKA) CPT 27447	19	▲ +12%	19
Arthroscopic Rotator Cuff Repair CPT 29827	18	new	17

CMS Open Payments, CY2025 general payments (published June 2026) — who already pays this surgeon.

$262 total received, 2025

3 payments

3 manufacturer relationships on file

See exactly which companies pay this surgeon — and how much — with a paid plan.

7-year payment trajectory (who's warming up, who's cooling off on this surgeon) is a paid feature. Unlock

Pulling CY2025 industry payments + 7-year history…