Charing Cross and Westminster Medical School in the context of "Imperial College London"

St Mary's Hospital is a teaching hospital in Paddington, in the City of Westminster, London, founded in 1845. Since the UK's first academic health science centre was created in 2008, it has been operated by Imperial College Healthcare NHS Trust, which also operates Charing Cross Hospital, Hammersmith Hospital, Queen Charlotte's and Chelsea Hospital and the Western Eye Hospital.

Until 1988 the hospital ran St Mary's Hospital Medical School, part of the federal University of London. In 1988 it merged with Imperial College London, and then with Charing Cross and Westminster Medical School in 1997 to form Imperial College School of Medicine. In 2007 Imperial College became an independent institution when it withdrew from the University of London.

St Mary's Hospital Medical School was the youngest of the constituent medical schools of Imperial College School of Medicine, founded in 1854 as part of the new hospital in Paddington. During its existence in the 1980s and 1990s, it was the most popular medical school in the country, with an application to place ratio of 27:1 in 1996.

St Mary's continued comparatively unmoved by the other nomadic medical schools in the area, until its merger with Imperial College in 1988, and the foundation of Imperial College School of Medicine in 1997 by the merger with Charing Cross and Westminster Medical School.