Dr. Ji is a licensed Internal Medicine in CA. Graduated in 2010. Medical degree obtained from Columbia University College of Physicians and Surgeons. Completed residency training at Columbia University. Currently practices at James Ji MD (James Ji MD), located at 8510 Balboa Blvd, Northridge, CA 91325. Dr. Ji specializes in internal medicine and primary care.. In addition to English, Dr. Ji speaks Mandarin and accepts new patients.