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

YU-NAN HSU, DO

INTERNAL MEDICINE

Medical school: LAKE ERIE COLLEGE OF OSTEOPATHIC MEDICINE, ERIE

Graduated: 2010

NPI: 1922382407

Practice Locations (1)

17100 EUCLID ST

FOUNTAIN VALLEY, CA 927084004

9493451015

Source: CMS National Downloadable File, September 2026.