NorthBay Health is a premier, nonprofit healthcare system in Solano County, California, established in 1959. It operates two main hospitals—NorthBay Medical Center in Fairfield and NorthBay VacaValley Hospital in Vacaville—along with a vast network of primary/specialty care practices. As a Mayo Clinic Care Network member, it offers advanced services, including Level II Trauma, comprehensive cardiac care, and neurosciences.