Dr Collins completed his undergraduate education at the University of Newcastle in 1998 and completed cardiology training at the John Hunter Hospital in 2005. Dr Collins then completed Fellowships in Adult Congenital Heart Disease and Interventional Cardiology at the Toronto General Hospital/University Health Network, Toronto, Canada. Particular interests include congenital heart disease, pulmonary hypertension, peri-operative cardiology assessment and interventional cardiology, focusing on complex coronary and interatrial interventions, including atrial septal defect and patent foramen ovale closure. Dr Collins performs procedures at both Lingard Private Hospital and Lake Macquarie Private Hospital.

Dr Collins is currently head of the cardiology department at the John Hunter Hospital, Newcastle, Australia and conjoint Associate Professor at the University of Newcastle. Nick has been involved in education at undergraduate and postgraduate levels, as well as research projects, focusing on congenital heart disease, pulmonary hypertension and interventional cardiology.