A/Prof Jason Phua is Deputy Chief Executive (Clinical Transformation) of the National University Health System (NUHS), Chief Executive Officer of Alexandra Hospital (AH), and a respiratory physician and intensivist practising at AH and National University Hospital (NUH).

He is the Co-Chair of the National COVID-19 Intensive Care Unit Committee, the Co-Chair of the National Intensive Care Unit Repository (NICUR), and the Chair of the Asian Critical Care Clinical Trials (ACCCT) Group. He previously served as the Head of the Division of Respiratory and Critical Care Medicine at NUH, the President of the Society of Intensive Care Medicine (SICM) Singapore, and the Chair of the Asia Ventilation Forum.