HealthCareAtlasUSA

This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.

Doctors / NJ

JOHN C HAHN, MD

GASTROENTEROLOGY

Medical school: RUTGERS NEW JERSEY MEDICAL SCHOOL

Graduated: 1985

NPI: 1538272091

Practice Locations (1)

534 AVE E, SUITE 1C

BAYONNE, NJ 070023987

2018230450

Source: CMS National Downloadable File, September 2026.