Washington Hospital Center is a not-for-profit 926-bed acute care teaching and research hospital based in Northwest Washington, D.C. It is the largest hospital in the nation's capital and among the 25 largest hospitals in the United States. Washington Hospital Center is the flagship facility for the MedStar Health system. It consistently ranks among the nation's top hospitals as measured by entities such as U.S.News & World Report, Money, Consumer Checkbook and Solucient. The Washington Heart program is a national leader in the research, diagnosis and treatment of cardiovascular disease; its angioplasty lab is recognized by the DuPont Foundation as the busiest in the nation. Washington Hospital Center's neurosciences program offers the full range of surgical and minimally invasive treatment and operates the only JCAHO-accredited Primary Stroke Center in the District of Columbia. Its Washington Cancer Institute provides the latest in cancer treatment and therapies and access to cutting-edge clinical trials. Washington Hospital Center is renowned for its emergency services. It is home to the busiest Level One trauma center and emergency department in the District of Columbia, the National Capital region's adult burn center, the MedSTAR Transport helicopter medevac program, and the ER One Institute.