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Illinois Department of Central Management Services

Plan Administrators

Plan Component	Administrator's Name	Customer Service Phone Numbers	Website Address
UnitedHealthcare Group Medicare Advantage PPO	UnitedHealthcare Customer Service Dept. PO Box 30769 Salt Lake City, UT 84130-0769	888-223-1092 TTY users, call 711	uhcretiree.com/soi
Aetna Medicare Plan (HMO)	Aetna Medicare PO Box 981106 El Paso, TX 79998-1106	855-223-4807 TTY users, call 711	stateofillinois.aetnamedicare.com
Health Alliance MAPD HMO	Health Alliance 3310 Fields South Drive Champaign, IL 61822	877-795-6131 TTY users, call 711	healthallianceretiree.org/soi
Humana Employer Medicare HMO	Humana Employer Medicare HMO PO Box 14168 Lexington, KY 40512	800-951-0125 TTY users, call 711	our.humana.com/soi
Medicare COB Unit	CMS Group Insurance 801 South 7th Street PO Box 19208 Springfield, IL 62794-9208	217-782-2548 800-442-1300 800-526-0844 (TDD/TTY)	benefitschoice.il.gov
Retirement System	Teachers' Retirement System 2815 W, Washington St. PO Box 19253 Springfield, IL 62794-9253	877-927-5877 TTY users, call 711	trsil.org
Medical Plans	MyBenefits Service Center 134 N. LaSalle Street Chicago, IL 60602	844-251-1777 844-251-1778 (TDD/TTY)	MyBenefits.illinois.gov