The National Center for Health Statistics (NCHS) is the main clearing house for US health statistics. Their goal is to provide information to inform decisions on public health and health policy. Detailed information on aspects of the US healthcare system is available here.
The Centers for Disease Control and Prevention (CDC) collects data on injury and mortality and makes it available through their Web Based Injury Statistics Query and Reporting System (WISQARS).
The Centers for Disease Control (CDC) Wide-ranging ONline Data for Epidemiologic Research (WONDER) provides access to public health information collected by the CDC.
Operated by the The Federal Interagency Forum on Child and Family Statistics (Forum) childstat is a clearing house for federal government information on children and adolescents.
The Center for Medicare and Medicaid Services (CMS) provides access to data related to their systems and services. Their served population includes older and low income Americans.
The American Hospital Association (AHA) is a trade organization and advocacy data that represents many US hospitals. They conduct an annual member survey and present data on hospital expenditures and usage as part of their advocacy role.
The American Association of Colleges of Nursing (AACN) research and data center collects information on higher education nursing programs in the united states.
The World Health Organization (WHO) is a United Nations agency charged with promoting health. Their data portal collects global, regional and national health information.
The Organization for Economic Co-operation and Development (OECD) is an intergovernmental organization with 38 member countries. They collect and distribute health data to improve the quality of international comparisons and economic analysis.