Dr. Leung is a licensed Internal Medicine in IL. Graduated in 2001. Medical degree obtained from Universidad de Buenos Aires. Completed residency training at Cook County Hospital. Currently practices at Northwestern Medicine (Northwestern Medicine), located at 251 E. Huron, Chicago, IL 60611. Dr. Leung specializes in internal medicine and primary care.. In addition to English, Dr. Leung speaks Mandarin and Cantonese.