Dr Barker graduated from Imperial Medical School in 1999, He intercalated in Charing Cross Hospital in 1996. He completed his general medical rotation in Kent and Worcestershire, obtaining MRCP in 2004. He spent one year abroad working at The Royal Perth Hospital, Australia.
Dr Barker completed his general Radiology training at Chelsea & Westminster Hospital, London, obtaining a Fellowship of the Royal College of Radiologists in 2007. He also completed a fellowship in Neuroradiology at The National Hospital or Neurology & Neurosurgery, Great Ormond Street and St. Georges Hospitals from 2008 - 2009.
He was appointed Consultant Radiologist at Frimley Park NHS Foundation Trust in 2009.he is a general Radiologist with sub-specialty interest in Neuroradiology and cross-sectional Imaging.