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

CHAO SUN, OD

OPTOMETRY

Medical school: NEW ENGLAND COLLEGE OF OPTOMETRY

Graduated: 2016

NPI: 1043669062

Practice Locations (2)

4301 VALE ST

Irvine, CA 926042249

520 N MAIN ST, SUITE 120

SANTA ANA, CA 927014623

Source: CMS National Downloadable File, September 2026.

CHAO SUN, OD | HealthCareAtlasUSA