Professor Clark holds consultant positions in Head and Neck Surgery at Chris O’Brien Lifehouse and Royal Prince Alfred hospitals and is a conjoint Clinical Professor at the University of Sydney. He is the Director of head and neck cancer research at the Sydney Head and Neck Cancer Institute (SHNCI) and head and neck research lead at the Royal Prince Alfred Institute of Academic Surgery (RPA-IAS). He was awarded a Member of the Order of Australia (AM) in 2019 for his contribution to head and neck surgery and was appointed a Master Surgeon by the International Federation of Head and Neck Oncological Societies (IFHNOS). He has over 220 peer review publications, particularly in the fields of head and neck cancer genomics, metastatic skin cancer, oral cancer, facial reconstruction and patient education. He  is a founding member Sydney Facial Nerve Service and Chairman of Beyond Five, Australia’s head and neck patient education website.

Professor Clark’s undergraduate medical training took place at the University of NSW and he trained as a general surgeon before undertaking Head and Neck subspecialty training at St. Vincent’s, Royal Prince Alfred (under the late Professor Chris O’Brien) and Westmead Hospitals in Sydney. He undertook a two-year fellowship in Head and Neck oncologic and reconstructive surgery at the Department of Otolaryngology, Head and Neck Surgery, University Health Network, Toronto Canada as part of the American Head and Neck Society advanced oncologic training program. He completed a postgraduate Masters of Biostatistics at the University of Sydney in 2012.

Professor Clark’s clinical focus is on surgery for salivary gland tumours, mouth cancer, digital planning for precision jaw reconstruction and dental rehabilitation, facial nerve reconstruction for cancer, and transoral robotic surgery (TORS) for throat cancer. He has a particular expertise in Head and Neck microvascular reconstruction and has trained > 30 international surgeons in these areas since commencing work at Royal Prince Alfred in 2006.