Illinois

Payers with state-specific directory entries in Illinois, plus BCBS entities the prefix research maps to this state.

State-specific directory entries

Payers in Illinois

Blue Cross Blue Shield of IllinoisCommercialIllinoisVerified · August 2026
CountyCareManaged MedicaidIllinoisNot Verified
Medicaid (State Programs)MedicaidIllinoisVerified · August 2026

BCBS prefix research

BCBS entities in Illinois

Health Care Service Corporation (BCBS)1382 prefixes

1382 prefixes in the research registry map to Illinois — try the BCBS Prefix Lookup. Research data only: prefix mapping never verifies a phone number.