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 / CA

JOHN W HANN, MD

FAMILY PRACTICE

Medical school: UNIVERSITY OF CALIFORNIA, GEFFEN SCHOOL OF MEDICINE

Graduated: 2011

NPI: 1689968224

Practice Locations (2)

THE REGENTS OF THE UNIVERSITY OF CALIFORNIA-IRVINE

101 THE CITY DR S

ORANGE, CA 928683201

7144567890

UNIVERSITY OF CALIFORNIA IRVINE

800 N MAIN ST

SANTA ANA, CA 927013576

7144566324

Source: CMS National Downloadable File, September 2026.

JOHN HANN, MD | HealthCareAtlasUSA