State of Illinois EMPLOYEES We've been a trusted partner for 30+ years. Open Enrollment is May 1- June 1. Coverage begins July 1. Find out more about our state-wide coverage. Visit HealthAlliance.org/ Stateofllinois or call (800) 851-3379. Health Alliance" TM State of Illinois EMPLOYEES We've been a trusted partner for 30+ years. Open Enrollment is May 1- June 1. Coverage begins July 1. Find out more about our state-wide coverage. Visit HealthAlliance.org/ Stateofllinois or call (800) 851-3379. Health Alliance" TM