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All Medicare claims submitted after January 1, 2020, are required to use the new MBI number. Effective January 1, 2020, claims filed without the MBI will deny for a mismatch of DCN/MBI combination not found in the MMIS.
The Medicare Access and CHIP Reauthorization Act (MACRA) required CMS to remove Social Security Numbers (SSNs) from the current SSN-based Health Insurance Claim Number (HICN)
Missouri Dual eligible Medicaid and Medicare participants have received their new cards.
If you have questions please call Provider Communications at 573-751-2896.