Dr Lee is a medical oncologist who has completed his training at Royal North Shore Hospital and has an interest in neuro-oncology.  He has recently completed a neuro-oncology fellowship under the supervision of Dr Helen Wheeler and is currently furthering his research in malignant brain tumours and clotting through the Bill Walsh Translational Cancer Research Laboratory at the Kolling Institute, University of Sydney with the support of a scholarship from the Rebecca Cooper Foundation.  Dr Lee is also a visiting medical officer at Armidale Hospital where he supervises and co-ordinates the care of general oncology patients in the Armidale region.

He has been the senior medical registrar at Royal North Shore Hospital (2012 -2013) with ongoing involvement in the training of basic physician trainees.  In addition, Dr Lee is also heavily involved with teaching of medical students of the Sydney Medical School - Northern - both in clinical tutorials,lectures and examination and basic science research projects.