Dr Leschziner graduated from Oxford and London. His neurology training was completed at the National Hospital for Neurology and Neurosurgery, Queen Square, Charing Cross and Guy?s and St Thomas? hospitals. He undertook a Sleep / Neurology fellowship at St Thomas' Hospital and Queen Square prior to his Consultant post.
He works as a Consultant neurologist at Guy?s and St Thomas' within the Department of Neurology, and is clinical lead for the Guy's Hospital Sleep Disorders Centre, one of the largest sleep centres in Europe.