As the Deputy Medical Director of Epidemiology a the Orange County Health Care Agency (OCHCA), DR. Cheung's activities include physician education and providing clinical and epidemiological expertise for communicable diseases surveillance, outbreak, investigations, and public health emergency preparedness.
Prior to coming to OCHCA in 2004, she worked as a hospital-based pediatric infectious diseases consultant and also assisted with influenza surveillance at the State level. She is board certified in Pediatric Infectious Diseases and Pediatrics. She completed Pediatrics Infectious Diseases fellowship at the University of California (UC), San Francisco, a Preventative Medicine residency at UC Berkeley/UCSF, and a Pediatrics residency at UC Irvine. She received her M.D. from Jefferson Medical College, Pennsylvania, her MPH from UC Berkeley, and her B.A. from Princeton University.