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

MASON SHIEH, MD

EMERGENCY MEDICINE

Medical school: UNIVERSITY OF CALIFORNIA, IRVINE, CALIFORNIA COLLEGE OF MEDICINE

Graduated: 2012

NPI: 1467718486

Practice Locations (2)

CEP AMERICA - CALIFORNIA

250 S GRAND AVE

GLENDORA, CA 917414218

6269638411

REGENTS OF THE UNIVERSITY OF

101 THE CITY DR S

ORANGE, CA 928683201

7144567004

Source: CMS National Downloadable File, September 2026.

MASON SHIEH, MD | HealthCareAtlasUSA