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

AMBREEN HASAN, MD

INTERNAL MEDICINE

Graduated: 2000

NPI: 1265600910

Practice Locations (1)

SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP

9961 SIERRA AVE

FONTANA, CA 923356720

9094275000

Source: CMS National Downloadable File, September 2026.

AMBREEN HASAN, MD | HealthCareAtlasUSA