Payer ID
MIBLS
MIBLS is the main BCBS of Michigan payer ID; Michigan FEP uses MIFEP. Medicare Plus Blue PPO, Blue Cross Complete (Medicaid), and BCN have separate routing.
Timely Filing Limit (TFL)
Medicare Plus Blue (MA): 2 years. Commercial timely-filing limit not confirmed — verify
Appeal Window
Appeals/clinical editing disputes per the BCBSM provider manual
Clearinghouse
Availity / approved clearinghouse to payer ID MIBLS
Provider Services
800-344-8525
Claims Fax
Varies — confirm via portal / clearinghouse
Claims Address
Professional: BCBSM, P.O. Box 312500, Detroit, MI 48231-2500. Institutional (UB-04): P.O. Box 310166, Detroit, MI 48231-0166.
Provider Portal
https://www.bcbsm.com/providers
Claims addresses differ by product/claim type. Physicians 800-344-8525; hospitals 800-249-5103.
Values vary by plan, region, and contract and can change. Confirm in the payer portal or with your clearinghouse before filing.
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