Mr Stewart trained in General Surgery then Otolaryngology Head and Neck Surgery in the West of Scotland and New Zealand, and became a Consultant in 2000.
Mr Stewart ran the Head and Neck Cancer service in Otago and Southland, New Zealand from 2000-3. He returned to the UK in 2003 and worked at Leeds Teaching Hospitals (then the largest trust in England) for 3 years, specialising in Benign Head and Neck Surgery and Facial Plastic Surgery.
Mr Stewart returned to the West of Scotland in 2006, and now practices as a General Otolaryngologist with an interest in Head and Neck Cancer Surgery. He continues to look after nasal, facial plastic and paediatric conditions, as he did in Leeds and Dunedin.