For more than 20 years, the Dartmouth Atlas Project has documented glaring variations in how medical resources are distributed and used in the United States. The project uses Medicare data to provide information and analysis about national, regional, and local markets, as well as hospitals and their affiliated physicians. This research has helped policymakers, the media, health care analysts and others improve their understanding of our health care system and forms the foundation for many of the ongoing efforts to improve health and health systems across America.

The downloadable datasets linked to below will be most useful to researchers, issuers, and others who have a need for the raw data about qualified health plans and stand-alone dental plans offered on healthcare.gov.

Kaiser is a non-profit organization focusing on national health issues, as well as the U.S. role in global health policy. Unlike grant-making foundations, Kaiser develops and runs its own policy analysis, journalism and communications programs, sometimes in partnership with major news organizations.

We serve as a non-partisan source of facts, analysis and journalism for policymakers, the media, the health policy community and the public. Our product is information, always provided free of charge — from the most sophisticated policy research, to basic facts and numbers, to in depth health policy news coverage provided by our news service, KHN, to information young people can use to improve their health or the general public can use to understand the health reform law.

The mission of the National Center for Health Statistics (NCHS) is to provide statistical information that will guide actions and policies to improve the health of the American people. As the Nation's principal health statistics agency, NCHS leads the way with accurate, relevant, and timely data.