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

SONJA W TANG, MD

INTERNAL MEDICINE

Medical school: LOMA LINDA UNIVERSITY SCHOOL OF MEDICINE

Graduated: 1994

NPI: 1710046321

Practice Locations (2)

SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP

9961 SIERRA AVE

FONTANA, CA 923356720

9094275000

SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP

1301 CALIFORNIA ST

REDLANDS, CA 923742910

9098093222

Source: CMS National Downloadable File, September 2026.

SONJA TANG, MD | HealthCareAtlasUSA