St Mary's Hospital is a hospital

Hospital

A hospital is a health care institution providing patient treatment by specialized staff and equipment. Hospitals often, but not always, provide for inpatient care or longer-term patient stays....

 located in Paddington

Paddington

Paddington is a district within the City of Westminster, in central London, England. Formerly a metropolitan borough, it was integrated with Westminster and Greater London in 1965...

, London

London

London is the capital city of :England and the :United Kingdom, the largest metropolitan area in the United Kingdom, and the largest urban zone in the European Union by most measures. Located on the River Thames, London has been a major settlement for two millennia, its history going back to its...

, England

England

England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

 that was founded in 1845. Since the UK's first academic health science centre

Academic health science centre

An academic health science centre is a partnership between one or more universities and healthcare providers focusing on research, clinical services, education and training...

 was created in 2008, it is operated by Imperial College Healthcare NHS Trust

Imperial College Healthcare NHS Trust

Imperial College Healthcare NHS Trust is an NHS trust based in London, United Kingdom. It is the largest NHS trust in England and together with Imperial College London forms an academic health science centre....

, which also operates Charing Cross Hospital

Charing Cross Hospital

Charing Cross Hospital is a general, acute hospital located in London, United Kingdom and established in 1818. It is located several miles to the west of the city centre in the London Borough of Hammersmith and Fulham....

, Hammersmith Hospital

Hammersmith Hospital

Hammersmith Hospital is a major teaching hospital in West London. It is part of Imperial College Healthcare NHS Trust in the London Borough of Hammersmith and Fulham, and is associated with the Imperial College Faculty of Medicine...

, Queen Charlotte's and Chelsea Hospital and Western Eye Hospital

Western Eye Hospital

Western Eye Hospital includes the only 24-hour emergency ophthalmology department in west London and treats a wide range of eye conditions from glaucoma to wet age-related macular degeneration , a major cause of blindness....

; and runs some services at St Charles Hospital in Ladbroke Grove

Ladbroke Grove

Ladbroke Grove is a road in west London, in the Royal Borough of Kensington and Chelsea. It is also sometimes the name given informally to the immediate area surrounding the road. Running from Notting Hill in the south to Kensal Green in the north, it is located in North Kensington and straddles...

.

Until 1988 the hospital ran St Mary's Hospital Medical School

St Mary's Hospital Medical School

St Mary's is the youngest of the constituent schools of Imperial College, London, founded in 1854 as part of the new hospital in Paddington. During its existence in the 1980s and 90s, it was the most popular medical school in the country, with an application to place ratio of 27:1 in 1996.St Mary's...

, part of the federal University of London

University of London

-20th century:Shortly after 6 Burlington Gardens was vacated, the University went through a period of rapid expansion. Bedford College, Royal Holloway and the London School of Economics all joined in 1900, Regent's Park College, which had affiliated in 1841 became an official divinity school of the...

. In 1988 it merged with Imperial College London

Imperial College London

Imperial College London is a public research university located in London, United Kingdom, specialising in science, engineering, business and medicine...

, and then with Charing Cross and Westminster Medical School

Charing Cross and Westminster Medical School

Charing Cross and Westminster Medical School existed as a legal entity for 13 years, as the midpoint of a series of mergers which strategically consolidated the many small medical schools in west London into one large institution under the aegis of Imperial College LondonIn 1984, Charing Cross...

 in 1997 to form Imperial College School of Medicine

Imperial College School of Medicine

The Imperial College School of Medicine is the medical school of Imperial College London in England, and one of the United Hospitals....

.