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

KAREN CHANG, DO

INTERNAL MEDICINE

Medical school: LAKE ERIE COLLEGE OF OSTEOPATHIC MEDICINE, ERIE

Graduated: 2016

NPI: 1861855439

Practice Locations (1)

SAN BERNARDINO GASTROENTEROLOGY ASSOCIATES INC

2006 N RIVERSIDE AVE, SUITE B

RIALTO, CA 923774697

9096444033

Source: CMS National Downloadable File, September 2026.

KAREN CHANG, DO | HealthCareAtlasUSA