New Medicare Cards: It’s Zero Not O

Originally published in the February 27, 2019 issue of MGMA’s Washington Connection
Reprinted with permission from MGMA

In response to MGMA member concerns whether new Medicare Beneficiary Identifiers (MBIs) contain the number “0” or the letter “O” on new Medicare cards, CMS clarified that the MBI uses numbers 0-9 and all uppercase letters except for S, L, O, I, B, and Z. As a reminder, starting Jan. 1, 2020, Medicare will only accept the MBI on claims, and practices can access their MBIs via your Medicare Administrative Contractor web portal. Download the member-benefit New Medicare Card Toolkit for additional information on the transition to the new cards and numbers.