Green Bay is served by three major hospitals providing more than 1,200 beds, several clinics and health care agencies, and 20 nursing homes. St. Vincent Hospital, with 542 beds, is the city's largest hospital and a regional center for cancer treatment, neuroscience, pediatrics, trauma, rehabilitation, perinatal care, and poison information. Operated by Bellin Health, Bellin Memorial Hospital is a 167-bed general care facility that specializes in the treatment of heart disease, mental health and addictive services, obstetrics, and orthopedics. Employing more than 2,300 people, Bellin Health also operates the four-year Bellin School College of Nursing. St. Mary's Hospital, with 158 private rooms, houses one of the state's largest 24-hour emergency-wards; other services include an alcohol and drug abuse program and a sick child day care program. The Prevea Clinic has more than 100 physicians trained in 21 specialty care areas who treat patients from throughout northeastern Wisconsin.