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

MAI SIE FIONA CHAN, MD

INTERNAL MEDICINE

Medical school: STANFORD UNIVERSITY SCHOOL OF MEDICINE

Graduated: 2001

Offers telehealth

NPI: 1326136557

Practice Locations (1)

929 CLAY ST, SUITE 303

SAN FRANCISCO, CA 941081570

4159566633

Source: CMS National Downloadable File, September 2026.

MAI SIE CHAN, MD | HealthCareAtlasUSA