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

MARIA C QUAN, MD

OBSTETRICS/GYNECOLOGY

Graduated: 1989

NPI: 1043281405

Practice Locations (3)

UNIVERSITY HEALTHCARE ALLIANCE

20642 JOHN DR

CASTRO VALLEY, CA 945465103

8889241036

VISTA COMMUNITY CLINIC

1000 VALE TERRACE DR

Vista, CA 920845218

VISTA COMMUNITY CLINIC

1000 VALE TERRACE DR

VISTA, CA 920845218

7606315000

Source: CMS National Downloadable File, September 2026.

MARIA QUAN, MD | HealthCareAtlasUSA