Dr. Patrika M. Tsai is a pediatric gastroenterologist and and professor at UCSF. She has been on faculty since 2007. She is certified by the American Boards of Pediatrics, Pediatric Gastroenterology, Physician Nutrition Specialists, and Obesity Medicine. She is director of the pediatric celiac disease clinic and pediatric obesity clinic at UCSF known as the WATCH clinic (Weight Assessment for Teen and Child Health).

A native of Chattanooga, TN, she completed her undergraduate studies at Harvard University. After receiving her medical degree from the University of Tennessee, she completed a pediatrics internship and residency at Emory University in Atlanta. Through a fellowship at Harvard, Dr. Tsai received training in pediatric gastroenterology, hepatology, and nutrition at Children’s Hospital Boston and Massachusetts General Hospital. She earned her Master’s degree in Public Health from Harvard University. Her interests include general pediatric gastroenterology, celiac disease, aerodigestive disorders and childhood obesity. With one in three children and adolescents affected by overweight or obesity, she believes this is one of the most important health challenges facing our nation's youth.