Alexander qualified in 1989 and initially practiced in Brighton and London before setting up Horsham Osteopaths with Henry Lee in 1992. They originally worked in Piries Place, Horsham, before establishing New Street Clinic in 1999. Alexander also worked for a number of years for the Maidstone College of Osteopathy as a clinic tutor, teaching students osteopathic techniques and supervising the student clinic. He is married with three children.