800-635-1928: Blue Cross and Blue Shield of Illinois Medical Management

Quick answer

(800) 635-1928 reaches Blue Cross and Blue Shield of Illinois (medical management department). It is answered by automated phone menu. From the greeting, press 1 or say “provider” for healthcare provider; say “member” for member.

Line at a glance

Health planBlue Cross and Blue Shield of Illinois
DepartmentMedical Management Department
PurposeMedical management line for Blue Cross and Blue Shield of Illinois where providers choose outpatient, authorization or behavioral health requests.
Answered byAutomated phone menu
How to respondKeypad or voice
Supported languagesEnglish
HoursNot stated in the greeting
Have readyNothing requested in the greeting

Shortcuts and conditional instructions

Questions about (800) 635-1928

Who answers 800-635-1928?

The Blue Cross and Blue Shield of Illinois Medical Management Department.

How do providers request an inpatient or home health authorization?

Press 1 or say provider, then say 'authorization'.

Which option covers mental health services?

Say 'behavioral health' for mental health or chemical dependency.

Disclaimer

The information provided on this page is for general informational purposes only and does not constitute billing, coding, or reimbursement advice. Nothing on this page should be relied upon as a substitute for clinician assessment, professional billing guidance, or as a definitive statement of any payor's billing requirements or policies.

Payor agreements, fee schedules, and billing policies vary and are subject to change. Before submitting any claims related to maternity care services, including claims affected by the 2027 CPT code revisions, please consult the applicable payor agreements, coverage policies, and billing guidelines to confirm current requirements for their specific payor contracts.

Substrate makes no representation or warranty regarding the accuracy, completeness, or timeliness of the payor-specific information presented here. Providers are solely responsible for ensuring that all claims are submitted in accordance with applicable payor requirements, and Substrate assumes no liability for claim denials, underpayments, or other adverse outcomes arising from reliance on this information.