- Superior Ambulance Service (Green Oaks, IL)
- Overview Grayslake ER Standby 24 hour shifts Superior Air-Ground Ambulance Service, Inc. was started in 1959 with one ambulance and today is the largest independent, ... locally owned, and operated emergency medical services provider in the Midwest. Superior employs more than 2,500 licensed EMT, Paramedics and Nurses, operating a fleet of more than 500 ambulances throughout Illinois, Indiana, Ohio, Michigan, and Wisconsin.… more