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

KATHY ONG, OD

OPTOMETRY

Graduated: 2002

NPI: 1609038629

Practice Locations (1)

1127 4TH ST, SUITE A

SAN RAFAEL, CA 949013006

4152957811

Source: CMS National Downloadable File, September 2026.

KATHY ONG, OD | HealthCareAtlasUSA