Dr. Chang Tou Choong studied his undergraduate medicine at Guy's Hospital Medical School, University of London. Graduating in 1985, he subsequently worked at various London teaching hospitals (Guys, Lewisham, Hammersmith, Charing Cross, King’s College and University College Hospital London) for 8 years. In 1990, he passed his MRCOG (UK) and FRCS (Glasgow) examinations. Between 1991 and 1993, he did obstetric ultrasound research at University College Hospital, London, leading to a Doctorate (MD) thesis on "Serial Ultrasound Assessment of the Growth Restricted Fetus" (University of London).

Dr. Chang has been working in Singapore since 1994 at the KK Women's Hospital from (1994-1998) and in Thomson Medical Centre since 1998. He was made a Consultant, Department of Maternal Fetal Medicine, KK Hospital in 1997. Since 1998, he has been the Head of the Fetal Assessment Unit (Centre for Prenatal Diagnosis and Obstetric Ultrasound) at Thomson Medical Centre. In 2005, Dr Chang was Associate Professor in O and G at the University of Auckland, New Zealand. Dr Chang was the President of the College of Obstetricians and Gynaecologists, Singapore (2007 – 2009).

His subs-specialty is Fetal Maternal Medicine and his interests are in the medical and surgical management of high risk pregnancies and complex obstetrics, ultrasound assessment of the at-risk fetus and invasive prenatal diagnostic procedures. Dr Chang does his obstetric deliveries and surgical operations at Thomson Medical Centre and Mt Elizabeth Novena Hospital.


+65 6253 4122

339 Thomson Road
#01-01 Thomson Medical Centre
Singapore 307677