The Illinois Department of Healthcare and Family Services has named six insurers for inclusion in the state's Medicaid managed care program under a planned overhaul of the program that had been anticipated for months, the Chicago Tribune reported.

The department selected BlueCross BlueShield of Illinois, Harmony Health Plan Inc., IlliniCare Health Plan Inc., Meridian Health Plan of Illinois Inc., Molina Healthcare Inc., and CountyCare Health Plan, to take part in the program for the next four years through 2021. Unlike traditional Medicaid programs where the state typically oversees Medicaid benefits, private insurers manage such benefits under the Medicaid managed care program.

Four insurers currently participating in the program did not submit bids for participation in the revamped program. Two others, Aetna Better Health Inc. and NextLevel Health, were not selected for the program, the news outlet reported.

The six insurers that will no longer participate in the program cover more than 500,000 Medicaid participants statewide, according to Chicago Tribune. In February, Illinois Gov. Bruce Rauner outlined plans to enact broad changes to the program.