Huntsville Hospital is a leading health care provider in Alabama serving as the regional referral center and state-designated Level 1 Trauma Center for North Alabama and southern Tennessee. It is the second-largest hospital in Alabama and is national-ranked by U.S. News & World Report and Healthgrades in a number of clinical areas, most notably Cardiac Surgery. It is the flagship in the Huntsville Hospital Health System (HH Health System) which is among the largest health systems in the United States. The HH Health System includes hospitals in Huntsville, Madison, Athens, Decatur, Boaz, Guntersville, Moulton, Red Bay, Sheffield and Fayetteville, Tenn.