Mary Mercy Hospital is a beautiful full-service, 304-bed acute care hospital, located in Livonia, MI, that provides comprehensive care, including a 24-hour emergency department, general medicine, inpatient and outpatient surgery, physical medicine and rehabilitation, intensive care unit, cancer, cardiology, geriatrics and birthing and women's health. Saint Joseph Mercy Health System is part of Trinity Health , one of the largest multi-institutional Catholic health care delivery systems in the nation, serving communities in 21 states with 86 hospitals, 128 continuing care facilities and home health and hospice programs.