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

ANDREA S TIENG, MD

GASTROENTEROLOGY

Graduated: 2003

NPI: 1356528566

Practice Locations (2)

10801 FOOTHILL BLVD, SUITE 106

RANCHO CUCAMONGA, CA 917307695

9092557200

10408 INDUSTRIAL CIR

REDLANDS, CA 923744548

9097967803

Source: CMS National Downloadable File, September 2026.

ANDREA TIENG, MD | HealthCareAtlasUSA