MA, BM, BCH (OXON) 1973, DM (OXON) 1985,
MRCP (UK) 1976, FRACP 1989, FRCP (LOND) 1992, FCSANZ 2004
Stewart was initially drawn to cardiology by the process of diagnosis from examination and investigation. He was inspired by mentors Dr Sam Oram (Kings College Hospital Medical School) and by Dr Jim Raftery (Northwick Park Hospital).
He held House Officer posts at Northwick Park Hospital which included rotation through Cardiology, and in Cardiology at Hammersmith Hospital. In 1978 he was Research Fellow in Cardiology at Northwick Park where he undertook original research into 24hr ambulatory blood pressure recording. In 1981-82 Stewart was Registrar in Cardiology at the Royal Infirmary, Bristol, and there followed a year in Sydney where he was Research and Clinical Fellow in Cardiology at the Royal North Shore Hospital.
Stewart returned to the UK in 1984 to be Senior Registrar in Cardiology at St Mary's Hospital, London.
From 1986 - 2003 Stewart was Consultant Cardiologist at Hutt and Wellington Hospitals, duties which included the running of the Hypertension Clinic in Wellington.
In 2003 he was appointed Associate Professor of Medicine, Wellington School of Medicine and Health Sciences, and from 2009 - 2016 was Head of the Department of Medicine.
He continued to provide clinical cardiology services for CCDHB, undertaking OP clinics at Kenepuru Hospital and at Kapiti, together with inpatient responsibilities until retirement from CCDHB in April 2016.
Consultant cardiologist Wakefield Hospital and at the Ropata Medical Centre, and subsequent private cardiology practice at Waikanae.
Retired in 2018.