Dr. Lien is a licensed Family Medicine in CA. Graduated in 1998. Medical degree obtained from Drexel Medical College of Pennsylvania. Completed residency training at Hahnemann University Hospital. Currently practices at Thoi H. LienMD (Thoi H. LienMD), located at 8054 Garvey Ave, Rosemead, CA 91770. Dr. Lien specializes in family medicine and primary care.. In addition to English, Dr. Lien speaks Mandarin.