Mr Parker is a Consultant Ear, Nose and Throat Surgeon, previously at the Royal Hallamshire Hospital, Sheffield and now at Peak Medical Practice in the Hope Valley, Derbyshire and based in the Clinical Sciences Block at Huntbridge Hall, Matlock.  After qualifying from Leeds Medical School in 1981, he undertook Registrar and post-graduate research training in Bristol before becoming Senior Registrar to the Sheffield Teaching Hospitals in 1988 and then obtaining his Consultant appointment in 1992.

He is currently in NHS and private practice in the High Peak area of Derbyshire, centred upon  Chapel-en-le Frith and Sheffield.  Mr Parker has been Programme Director for the North Trent ENT training rotation and Lead clinician for Head and Neck cancer at the Royal Hallamshire Hospital in Sheffield. He is a member of the Court of Examiners at the Royal College of Surgeons of England.

Mr Parker has engaged in busy medico-legal practice from the early 1990s, concentrating on the areas of personal injury, acoustic shock, whiplash, noise induced hearing loss, voice disorder and occupational rhinosinusitis.