Dr. Hao is a board-certified surgeon, specializing in Hepatobiliary and Pancreatic Surgery. He is a graduate of the University of the Philippines College of Medicine. He completed his residency in General Surgery and fellowship in Hepatobiliary and Pancreatic Surgery at the University of the Philippines Philippine General Hospital. He pursued further training as a Clinical Fellow in Laparoscopic and Robotic Hepatobiliary and Pancreatic Surgery at Severance Hospital, Sinchon-dong, South Korea.