Dr Mangahis has undertaken three years of extensive studies in Internal Medicine in the Philippines, where he was awarded the White Coat Award for Professionalism and Ethical Practice of Medicine by the University of Santo Tomas Hospital. Dr Mangahis then moved to live in Australia. His medical experiences include General Medicine, Cardiology, Palliative Care, Medical Oncology, Rheumatology and Immunology, Geriatrics, Respiratory Medicine, Renal Medicine, Gastroenterology, and Infectious Diseases. He is also a certified in Primary Care Dermatology and Skin Cancer Medicine, and holds a Diploma in Child Health.
Dr Mangahis speaks Tagalog in addition to English.