Graduated in 1982 and completed higher training at Charing Cross Hospital London/West Middlesex University Hospital in Geriatric and General Medicine. Consultant Physician at the Lister Hospital, Stevenage since 1996.
Full-time physician and senior most consultant at East and North Hertfordshire NHS Trust in elderly care. Has interest in all aspects of medical problems relating to old age.
Professor Khan is Director of Medical Education and Associate Medical Director for East and North Hertfordshire NHS Trust. He is Associate Postgraduate Dean Health Education East of England, Visiting Professor University of Hertfordshire and Academic Medical Lead for The School of Life and Medical Sciences, Clinical and Pharmaceutical Sciences, University of Hertfordshire
Academic affiliations include Recognised Clinical Teacher University of Cambridge. Examiner for the Royal College of Physicians MRCP and Diploma in Geriatric Medicine. He has strong research interests and has over 100 publications.