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Contact Us

Medicare-eligible Retirees

For members with questions about membership, benefits, billing or claims, please find the phone number below:

Plan Help:

Medicare Plan Enrollment & Education Helpline
1-877-842-7564 TTY 711

Blue Cross Group Medicare Advantage Open Access (PPO)℠
1-877-397-7129 TTY 711

Blue Cross Group MedicareRx (PDP)℠
1-877-688-1795 TTY 711

BlueSecure℠
1-800-409-9462 TTY 711

Help is available during these times:
October 1 – March 31: Daily, 8:00 a.m. to 8:00 p.m. local time.
April 1 – September 30: Monday through Friday, 8:00 a.m. to 8:00 p.m. local time.
Alternate technologies (for example, voicemail) will be used on weekends and holidays.

Additional Assistance:

HCSC Employee Services
1-866-977-7378

Medicare Plan Billing Questions
1-888-541-7107

Social Security Administration
1-800-772-1213 (TTY 1-800-325-0778)
between 8:00 am – 7:00 pm., Monday through Friday

Prime Therapeutics-RX
1-800-423-1973 TTY 711

Prime Therapeutics LLC provides pharmacy benefit management services for Blue Cross and Blue Shield of Illinois.  Blue Cross and Blue Shield of Illinois, as well as several independent Blue Cross and Blue Shield Plans, has an ownership interest in Prime Therapeutics LLC.

Last Updated: 11022021
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This Information is a solicitation for insurance.

Medicare Supplement Insurance Plan Notice:
Not connected with or endorsed by the U.S. Government or Federal Medicare Program.

BlueSecure, a retiree group supplemental medical plan, is offered by Blue Cross and Blue Shield of Illinois, a Division of Health Care Service Corporation, a Mutual Legal Reserve Company, an Independent Licensee of the Blue Cross and Blue Shield Association. Not connected with or endorsed by the U.S. Government or Federal Medicare Program.

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