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 MAA, MD

GENERAL SURGERY

Medical school: HARVARD MEDICAL SCHOOL

Graduated: 1994

NPI: 1356305866

Practice Locations (1)

CHINESE HOSPITAL ASSOCIATION

845 JACKSON ST, B1

SAN FRANCISCO, CA 941334851

4156772370

Source: CMS National Downloadable File, September 2026.