Dr. Hsia is Assistant Professor in the Department of Emergency Medicine at the University of California at San Francisco, and is an emergency physician at San Francisco General Hospital. Her research focuses on barriers to access to emergency care for vulnerable populations, as well as reimbursement and financing within health care systems. She has published on health services research both domestically and internationally and has presented her research at numerous national and international conferences. In addition to her research, she is currently developing the areas of concentration of global health within the UCSF Emergency Medicine Residency, and also serves on the Federal Government Legislative Committee of the American College of Emergency Physicians.

Her international experience includes work with a wide range of organizations, ranging from private, non-governmental organizations (International Rescue Committee in Rwanda), academic groups (Harvard AIDS Institute in Senegal and South Africa), as well as healthcare consulting (McKinsey & Company as an associate in Brussels, Belgium). She has also spent time with the Centers for Disease Control and Prevention in Atlanta, and the World Health Organization in Geneva, Switzerland, as well as conducted basic life support skills training overseas. Clinically, she has worked in Hong Kong, China, Guatemala, Eritrea, the United Kingdom, and France. She speaks English, Mandarin, Cantonese, French, and Spanish fluently.

Dr. Hsia holds a bachelor's degree from the Woodrow Wilson School of Public and International Affairs from Princeton University, her medical degree from Harvard Medical School, and her Masters of Science in health policy, planning, and financing from the London School of Economics and the London School of Hygiene and Tropical Medicine. She completed her residency training in emergency medicine at Stanford.