Professor Richardson took his first Degree with Honours in Cell Biology and Immunology at the University of London and qualified in clinical medicine at the Middlesex Hospital Medical School, in 1973.
Following three years as an intern, and then a residency in Internal Medicine, he turned to Paediatrics and he has remained in this field ever since. Most of his paediatric career has been based at Great Ormond Street Hospital for Children (GOSH) in London, but a considerable period of time has been spent overseas on specific assignments. He is a general paediatrician with a special clinical interest in children with specific learning and behavioural difficulties.
During 1979, he worked for Save the Children Fund (a UK based global charity) in Burkina Fasso, West Africa and in Nicaragua, Central America. In 1980, he devised and wrote a master plan to establish a comprehensive integrated paediatric service in Brunei, SE Asia and then, at the request of the Government of Brunei, stayed on for five years to implement and further develop the plan. On leaving Brunei in 1985, he spent two years in Muscat in the Sultanate of Oman as Senior Paediatric Consultant and advisor to the Ministry of Health. In 1987, he returned to the United Kingdom to take up an academic position in the University of London, firstly as Lecturer and then as Senior Lecturer in International Child Health. In 1986, he was appointed Honorary Consultant Physician at Great Ormond Street Hospital for Children.
In 1990, he co-founded WhizzKidz, a children’s charity that has become the largest supplier of mobility aids and specialist services to disabled children outside of the NHS. Professor Richardson is an internationally acknowledged authority on the emerging fields of eHealth and Telemedicine. He lectures frequently on the subject and his opinions and views have been sought in various media worldwide.