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

YI ZHENG, MD

GASTROENTEROLOGY

Graduated: 1998

Also: INTERNAL MEDICINE

Offers telehealth

NPI: 1851622427

Practice Locations (1)

2121 YGNACIO VALLEY RD, SUITE E105

WALNUT CREEK, CA 945983340

9253849276

Source: CMS National Downloadable File, September 2026.