In the U.S., public hospitals receive significant funding from local, state, and/or federal governments. Currently, many urban public hospitals in the U.S. playing the role of safety-net hospitals, which do not turn away the under insured and uninsured, may charge Medicaid, Medicare, and private insurers for the care of patients. Public hospitals, especially in urban areas, have a high concentration of uncompensated care and graduate medical education as compared to all other American hospitals. 23% of emergency care, 63% of burn care and 40% of trauma care are handled by public hospitals in the urban cities of the United States. Many public hospitals also develop programs for illness prevention with the goal of reducing the cost of care for low-income patients and the hospital, involving Community Health Needs Assessment and identifying and addressing the social, economic, environmental, and individual behavioral determinants of health.