Founded in 1898, the American Hospital Association (AHA), located in Chicago, Illinois, is the national organization that represents and serves all types of hospitals, health care networks, and their patients and communities. The AHA provides education for health care leaders and is a source of information on health care issues and trends. Close to 5,000 hospitals, health care systems, networks, other providers of care and 37,000 individual members form the AHA.

Hospitals in the United States | Professional associations | 1898 establishments