Dr Lee-Ong received his medical degree from the University of the Philippines Manila – College of Medicine and underwent residency training in general surgery at the Manila Doctors Hospital. He subsequently went for a clinical fellowship in minimally invasive surgery at the National University Hospital, Singapore. He is a

Fellow of Philippine College of Surgeons
Fellow of Philippine Society of General Surgeons
Fellow of Philippine Association of Laparoscopic and Endoscopic Surgeons

Member of
Philippine Hernia Society
Asia Pacific Hernia Society
Endoscopic and Laparoscopic Surgeons of Asia

Currently, Dr Lee-Ong is a contributing author in 2 textbooks on minimally invasive surgery and co-author of 5 articles published in international peer-reviewed journals. In addition, he is an active consultant at the Manila Doctors Hospital.