Dr. Chien is a licensed Cardiology in CA. Graduated in 1984. Medical degree obtained from Washington University School of Medicine. Completed residency training at Stanford Medicine. Currently practices at Mercy Medical Group (Mercy Medical Group), located at 2013 Coffee Rd, Modesto, CA 95355. Dr. Chien specializes in Anti-arrhythmic drug therapy, Arrhythmia, Electrophysiology study, Pacemaker services.. In addition to English, Dr. Chien speaks Mandarin, Cantonese, and Shanghainese.