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Contact Information

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The following phone and address information is for Illinois residents enrolled in Blue Cross and Blue Shield of Illinois individual, family, and medicare health insurance plans:

Customer Service

(800) 538-8833

Medicare Supplement and Blue MedicareRx applications

Email applications to: help@ihealthagents.com

Mental Health Service

(800) 851-7498

Coverage while Traveling Outside of Illinois

(800) 810-2583

Health Care Provider Inquiry

(800) 972-8088

Claims Mailing Address

Mail claims to:
Blue Cross Blue Shield of Illinois
P.O. Box 3235
Naperville, IL 60566-7235
Fax: (630) 328-4356

Premium Payment Mailing Address

Mail Premium Payments to:
Blue Cross Blue Shield of Illinois
P.O. Box 3240
Naperville, IL 60566-7240

Medicare Supplement Premium Payment Mailing Address

Mail Premium Payments to:
BCBSIL Medicare Supplement Payment Team
Dept. 0038
Palatine, IL 60055-0038

Ways to Pay Your BCBSIL Premium

BlueCross BlueShield of Illinois offers several ways for members to pay their monthly premium:

  • Pay online: Make a quick one-time payment through the BCBSIL Payment Portal, or log in to Blue Access for Members from the BCBSIL Pay My Bill page to view your bill and manage payments.
  • Pay by phone: Call (800) 538-8833 and say “Member,” then “Make a payment” to reach the automated payment line.
  • Auto Bill Pay: Set up automatic monthly payments from your bank account so your premium is always paid on time. You can enroll through Blue Access for Members or by submitting an Automatic Premium Payment Authorization form.
  • Pay by mail: Send a check to the premium payment mailing address above (use the Medicare Supplement address if you have a Medigap plan).
  • First premium (binder) payment: New policies do not go into effect until the first premium is paid. New members can make their binder payment online at the BCBSIL binder payment page.

Grace Period Rules

If you miss a premium payment, how long you have to catch up depends on whether you receive a premium tax credit (subsidy) on your marketplace plan:

  • With a premium tax credit: Federal rules give you a 3-month grace period once you have paid at least one full month’s premium. Claims can be held during the second and third months, and if the past-due balance is not paid in full by the end of the grace period, coverage is terminated back to the end of the first month.
  • Without a premium tax credit: Your grace period is set by your policy, typically around 30 days. If payment is not received by the end of it, the policy lapses.

If you have fallen behind on your BCBSIL premium and are not sure where you stand, call us at 312.726.6565 and we can help you sort it out.