Dan was trained in Adelaide. He lived in Brisbane from 2007–2010, completing a PhD and a Master of Public Health at UQ and working at the RBWH. Dan lived in New York from 2010–2014 working at Columbia University in gastrointestinal cancer research.
Since 2015, Dan has run a bowel cancer research laboratory in Adelaide and works as a clinical gastroenterologist in private practice. Dan is a leader in gastrointestinal cancer research, with a special interest in colorectal cancer screening and prevention.