Surgeon profile

John Hammock, M.D.

Clinical Cardiac Electrophysiology · Quincy, IL 62301NPI 1912082975

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

Contactverified live in NPPES · Jul 7, 2026

Active NPI927 BROADWAY ST, QUINCY, IL 62301☎ 217-224-6423

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Operates atCMS affiliations, refreshed monthly

BLESSING HOSPITAL · QUINCY, ILILLINI COMMUNITY HOSPITAL · PITTSFIELD, ILSCOTLAND COUNTY HOSPITAL · MEMPHIS, MOMEMORIAL HOSPITAL · CARTHAGE, ILMC DONOUGH DISTRICT HOSPITAL · MACOMB, IL

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Tracked procedure volumes

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

117 Medicare cases/yr

115 patients

4 procedures

Procedure	Cases	Trend	Patients
AFib Ablation CPT 93656	52	▼ -10%	51
Pacemaker — Dual Chamber CPT 33208	33	▲ +94%	32
Leadless Pacemaker Insertion CPT 33274	21	▲ +11%	21
SVT Ablation CPT 93653	11	new	11

Industry relationships

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

$1,225 total received, 2025

47 payments

6 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…