Surgeon profile

Mark Hamming

Orthopedic Surgery · Gurnee, IL 60031NPI 1861653453

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

Contactverified live in NPPES · Jul 6, 2026

Active NPI350 S GREENLEAF ST, GURNEE, IL 60031☎ 847-336-3335

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Operates atCMS affiliations, refreshed monthly

ADVOCATE CONDELL MEDICAL CENTER · LIBERTYVILLE, ILNORTHWESTERN LAKE FOREST HOSPITAL · LAKE FOREST, ILVISTA MEDICAL CENTER EAST · WAUKEGAN, ILNORTHWESTERN MEDICINE CENTRAL DUPAGE HOSPITAL · WINFIELD, IL

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Tracked procedure volumes

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

65 Medicare cases/yr

62 patients

3 procedures

Procedure	Cases	Trend	Patients
Total Knee Replacement (TKA) CPT 27447	27	≈ flat	24
Total Hip Replacement (THA) CPT 27130	25	▼ -11%	25
Knee Arthroscopy — Both Menisci CPT 29880	13	new	13

Industry relationships

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

$127 total received, 2025

5 payments

5 manufacturer relationships on file

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Relationship trajectory, 2019–2025

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…