This 365-bed hospital is part of St. John Providence Health System and is home to 20,000 employees, 3,200 physicians, 175 medical offices and 10 hospitals in six counties. The system is part of Ascension Health, a Catholic organization that is the largest non-profit health system in the nation. Providence Hospital has more than 3,400 staff members, 1,500 physicians and about 150 residents in 19 residency programs. After more than 100 years in Detroit, the hospital moved to the suburbs in 1965. A few years ago, it opened a sister hospital, 200-bed, patient-friendly Providence Park Hospital in a 200-acre wooded campus in Novi, Mich.