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NEW Medicare Card Look-Up Tool

June 11, 2018

New Medicare Card: MBI Look-up Tool Available through your MAC

All Medicare Administrative Contractor (MAC) secure portal Medicare Beneficiary Identifier (MBI) look-up tools are ready for use. If you don’t already have access, sign up for your MAC’s portal to use the tool.

Submit four data elements about your patient through the tool, and we will return the MBI if we have already mailed the new Medicare card. Medicare is mailing new cards in phases by geographic location. For more information about the MBI, read the MLN Matters® Special Edition Article.

Currently mailing new cards to people who:

Live in Alaska, American Samoa, California, Delaware, District of Columbia, Guam, Hawaii, Maryland, Northern Mariana Islands, Oregon, Pennsylvania, Virginia, and West Virginia.