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

KENNETH WEITUNG LIEN, MD

ALLERGY/IMMUNOLOGY

Medical school: UNIVERSITY OF CHICAGO, PRITZKER SCHOOL OF MEDICINE

Graduated: 1998

Offers telehealth

NPI: 1396823092

Practice Locations (1)

20400 LAKE CHABOT RD, SUITE 304

CASTRO VALLEY, CA 945465316

5105370700

Source: CMS National Downloadable File, September 2026.