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

MATTHEW S CHANG, MD

GASTROENTEROLOGY

Medical school: UNIVERSITY OF MICHIGAN MEDICAL SCHOOL

Graduated: 2006

NPI: 1598949521

Practice Locations (1)

PERMANENTE MEDICAL GROUP INC

2350 GEARY BLVD

SAN FRANCISCO, CA 941153305

4158332871

Source: CMS National Downloadable File, September 2026.

MATTHEW CHANG, MD | HealthCareAtlasUSA