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If a Medicare member has secondary insurance coverage through one of our plans (such as the Federal Employee Program, Medex, a group policy, or coverage through a vendor), Medicare generally forwards claims to us for processing.
Once a month, Blue Cross forwards eligibility information (the member’s Medicare MBI number and effective dates of coverage) to the Centers for Medicare & Medicaid Services. Medicare uses this information when determining which claims should be forwarded to Blue Cross.
If: | Then: |
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The Medicare MBI number is missing from our eligibility file |
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The Medicare MBI number we have on file is invalid |
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The member is an out-of-state federal employee |
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Important: