Dr Ang is a medical graduate of the National University of Singapore (1989), and was trained in General Surgery followed by specialisation in Plastic Surgery at the Singapore General Hospital.

Since 2005, Dr Ang's private practice is based at the Mount Elizabeth Medical Centre. This practice specialises in Aesthetic, Plastic and Reconstructive Surgery, with particular emphasis and expertise in Breast Aesthetic and Reconstructive procedures. Dr Ang maintains admitting privileges and operating rights at Mount Elizabeth, Gleneagles and East Shore Hospitals.