St Mungo's

St Mungo's Hospital for Magical Maladies and Injuries is a fictional hospital, where the Medics at the hospital are not called doctors, but are known as Healers and wear lime-green robes.
Founded by famous wizard Healer Mungo Bonham, St Mungo's is located in London.
To enter the premises, one has to step through the window of what appears to be a derelict department store called Purge & Dowse Ltd.