"Assistance Publique-Hôpitaux de Paris" (AP-HP) or Paris Hospitals' Public Aid is the regional and university hospital center in the Ile de France. Its missions include health care, teaching, research and prevention. The AP-HP is composed of 39 hospitals or hospital groups covering 750 hospital departments, 5 general services and 4 Paramedic Services in the Ile de France region. It employs 90 658 people practicing over 150 professions. (http://www.ap-hp.fr)

Although the AP-HP no longer owns the original medieval building in which it used to be housed earlier, since the Hôtel-Dieu burnt down in 1788, its property today includes some of the greatest 17th to 20th century buildings, including 42 buildings or parts of buildings classified as Historic Monuments, which also include two private mansions, and 60 buildings registered in the Additional List. On the whole, the institution owns 470 hectares of land, including 131 ha in Paris, with 3.5 million-sq.m. of built-up areas.

The AP-HP has a Heritage and Logistics Department that is in charge of AP-HP's property and real estate and manages, maintains and enhances this architectural heritage in consultation with the Ministry of Culture and also looks after new construction. In addition, it draws up policies related to property, real estate logistics as well as hospital ecology for the institution.

The AP-HP has a museum that is open to the public and houses several collections on the history of medicine. Set up in 1935, it is located in the buildings (classified as Historical Monuments) of the Hôtel de Miramion, where the old "Pharmacie Centrale des Hôpitaux" or Central Hospital Pharmacy used to be in the past.

The AP-HP also has an archives department that was set up by putting all the hospital archives under one roof during the French Revolution. Its task is to preserve historical documents and incunabula (since 1157), which retrace eight centuries of the history of medicine in France, as well as hospital architecture and construction.

The AP-HP is a member of the "Société Française d’Histoire des Hôpitaux" - the French Hospital History Agency - which recognized it for the work it had done on the history of medicine for the institution's 500th anniversary. A study of the historical typologies of hospital buildings conducted in partnership with the "École Nationale des Ponts et Chaussées" was granted an award by the Agency on 14 March 2000.

The International Affairs Department helps in the development of cooperation projects at the international and European scale.