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

RAY J HSIAO, MD

INTERNAL MEDICINE

Medical school: UNIVERSITY OF CALIFORNIA, SAN DIEGO SCHOOL OF MEDICINE

Graduated: 1989

Offers telehealth

NPI: 1164507869

Practice Locations (2)

1850 S AZUSA AVE, SUITE 308

HACIENDA HEIGHTS, CA 917456854

6268547866

201 W GARVEY AVE, SUITE 108

MONTEREY PARK, CA 917547420

6265731023

Source: CMS National Downloadable File, September 2026.

RAY HSIAO, MD | HealthCareAtlasUSA