MBIs are required for all claims and transactions starting Jan. 1, 2020 (with few exceptions). Out with the old Health Insurance Claim Numbers (HICNs) and in with the new Medicare Beneficiary Identifiers (MBIs) as beneficiaries receive updated cards in advance of a Jan. 1, 2020, transition. As of Aug. 19, the Centers for Medicare & […]
New Medicare Beneficiary Identifiers (MBI)









