Masking the Medicare Beneficiary Identifier (MBI) on the Medicare Summary Notice (MSN)
The purpose of this change request is to establish a level of effort for re-masking the MBI on the MSN. The CMS is moving to establish the level of effort required to mask the MBI on all MSNs.
Issued by: Centers for Medicare & Medicaid Services (CMS)
Issue Date: July 28, 2022
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