Dr Neomal (Nemes) Sandanayake graduated in medicine from The University of Sydney in 1998, undergoing his physician and gastroenterology training at Royal Prince Alfred, Concord and Royal North Shore Hospitals between 1998 and 2005. He moved to the United Kingdom in 2006 for an endoscopy Fellowship at University College London Hospital, and between 2007 and 2010 undertook research in pancreatic and bile duct cancer for which he was awarded a Doctor of Philosophy in Medicine by The University of Sydney.

Nemes is a Visiting Medical Officer at Royal North Shore, North Shore Private, Macquarie University and The Mater Hospitals. He has previously been a Staff Specialist in Hepatology at Concord Hospital.

He is a member of the Gastroenterological Society of Australia. He regularly attends meetings in Australia and overseas, is active in research in gastrointestinal cancer, and has published original works. He is involved in undergraduate and postgraduate teaching at The University of Sydney and at Royal North Shore Hospital.

He has certification in endoscopy, colonoscopy and ERCP, and is interested in all aspects of gastroenterology and hepatology.