Dr Nelson is a General Cardiologist with a subspecialty interest in non-invasive Cardiac Imaging. He graduated from the University of New South Wales in 1989 and has trained at St Vincent's, St George and Prince of Wales hospitals in Sydney.

Dr Nelson completed a Clinical Research Fellowship and Master of Philosophy in Cardiac Imaging Science at University of Queensland / Princess Alexandra Hospital / The Wesley Hospital in Brisbane.

He also completed a 2-year Clinical Echocardiography Fellowship at Hearts 1st Laboratory at Greenslopes Private Hospital in Brisbane and continued to work at the same site as a consultant cardiologist. He has also worked as a consultant cardiologist at Echo Services laboratory in Perth and at Ryde Hospital in Sydney.