Dr. Lei Mary Chen is a California state licensed medical doctor, specializing in Internal Medicine. Graduated Magna Cum Laude from Fudan University Shanghai Medical College, completed residency training in St. John's Episcopal Hospital-South, Dr. Chen's clinical interests include internal medicine and primary care. Dr. Chen currently is working at Optum Care, located in 18780 Amar Rd #107 Walnut CA 91789 Dr. Chen's clinic interests include internal medicine and primary care. Please call +1-626-810-6777 to contact. Access cdoc101.com on a desktop computer to view more details. | |||