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

MARY LEONG, OD

OPTOMETRY

Medical school: SOUTHERN CALIFORNIA COLLEGE OF OPTOMETRY

Graduated: 2002

NPI: 1003968249

Practice Locations (2)

WINSON ONG OD

5109 LONE TREE WAY

ANTIOCH, CA 945318484

9257575577

BALFOUR VISION OPTIX OPTOMETRY INC

3840 BALFOUR RD, A

BRENTWOOD, CA 945131641

9255130323

Source: CMS National Downloadable File, September 2026.

MARY LEONG, OD | HealthCareAtlasUSA