Payer directory
Blue Cross and Blue Shield of Illinois provider contacts
Provider phone number, Prior authorization, Payer ID, Claims address, from Blue Cross and Blue Shield of Illinois's own provider pages.
Provider customer service (Commercial): 1-800-972-8088. From Blue Cross and Blue Shield of Illinois's own page on bcbsil.com, verified October 23, 2026. 4 more entries by plan type below.
Provider phone number
| For | Type | Value | Payer page says | Verified |
|---|---|---|---|---|
| Provider customer serviceCommercial | Phone | 1-800-972-8088 | 800-972-8088 (Monday through Friday, 8 a.m. to 11:30 p.m. CT; and Saturday, 6 a.m. to 3:30 p.m. CT)bcbsil.com | |
| Provider customer service, Medicare AdvantageMedicare Advantage | Phone | 1-877-774-8592 | Medicare Advantage (PPO and HMO): 877-774-8592bcbsil.com | |
| Provider customer service, Medicaid (BCCHP)Medicaid | Phone | 1-877-860-2837 | Medicare Advantage (PPO and HMO): 877-774-8592 Medicaid (BCCHP): 877-860-2837bcbsil.com | |
| FEP customer serviceFEP | Phone | 1-800-972-8382 | FEP customer service: 800-972-8382bcbsil.com | |
| BlueCard eligibility line | Phone | 1-800-676-2583 | Call for out-of-state Blue Cross and Blue Shield member eligibility and benefits 800-676-2583bcbsil.com |
Blue Cross and Blue Shield of Illinois provider phone number
Prior authorization
| For | Type | Value | Payer page says | Verified |
|---|---|---|---|---|
| Medical Management (prior authorization questions)Commercial | Phone | 1-800-572-3089 | Commercial (non-HMO): 800-572-3089bcbsil.com | |
| Medical Management (prior authorization questions)Medicaid | Phone | 1-877-860-2837 | Medicare Advantage (PPO): 877-774-8592 Medicaid (BCCHP): 877-860-2837bcbsil.com | |
| Prior authorization and out-of-network referrals phoneMedicare Advantage | Phone | 1-877-774-8592 | Prior authorization and out-of-network referrals Phone: 877-774-8592bcbsil.com | |
| Prior authorization and out-of-network referrals faxMedicare Advantage | Fax | 1-855-874-4711 | Fax: 855-874-4711bcbsil.com | |
| Carelon contact center | Phone | 1-866-455-8415 | Carelon Contact Center: 866-455-8415bcbsil.com |
Payer ID
| For | Type | Value | Payer page says | Verified |
|---|---|---|---|---|
| Medicare Advantage electronic claims payer IDMedicare Advantage | Payer ID | 66006 | Electronic payer ID 66006bcbsil.com |
Claims address
| For | Type | Value | Payer page says | Verified |
|---|---|---|---|---|
| Paper commercial claimsCommercial | Mailing address | BCBSIL, PO Box 660603, Dallas, TX 75266-0603 | commercial paper claims may be submitted to this address: BCBSIL, PO Box 660603, Dallas, TX, 75266-0603.bcbsil.com | |
| Paper claims, Blue Cross Community Health PlansMedicaid | Mailing address | Blue Cross Community Health Plans, c/o Provider Services, PO Box 650712, Dallas, TX 75265-0712 | Blue Cross Community Health Plans, c/o Provider Services, PO Box 650712, Dallas, TX 75265-0712bcbsil.com | |
| Paper claimsMedicare Advantage | Mailing address | Blue Cross Medicare Advantage, c/o Provider Services, PO Box 3686, Scranton, PA 18505 | Blue Cross Medicare Advantage, c/o Provider Services, PO Box 3686, Scranton, PA 18505bcbsil.com |
Rivvi lists only what Blue Cross and Blue Shield of Illinois publishes on its own provider pages (bcbsil.com). A topic with nothing verified is left off. This page does not say which providers or plans Blue Cross and Blue Shield of Illinois contracts with.
Related
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- Blue Cross and Blue Shield of Illinois prior authorization
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- Blue Cross and Blue Shield of Illinois claims address
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Source: Blue Cross and Blue Shield of Illinois's own provider pages, linked in each table. Checked . Last updated . How Rivvi sources data. Spot an error? hello@rivvi.ai.
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