Premier Health is a medical network of three hospitals and two major health centers in the Dayton region. Premier Health, which employs 14,000 workers, is the second-largest employer in the Dayton region and ninth-largest employer in Ohio. They contribute about $2 billion a year in positive economic impact. Hospitals included in the network are: * Miami Valley Hospital - Dayton, Ohio, United States. * Atrium Medical Center - Middletown, Ohio, United States. * Upper Valley Medical Center - Troy, Ohio, United States.