CMS hasn’t mailed the New Medicare Cards to the west coast yet, but you may encounter patients transferring or visiting from areas that already have their new Medicare Beneficiary Identifiers or MBIs. You may also have Railroad Retirement Board patients, whose cards have been mailed. There’s a sample of RRB cards at https://www.rrb.gov/sites/default/files/2017-10/New%20Medicare%20Card%20Sample_0.pdf.
CMS’s top priorities in moving to new Medicare cards and numbers are to make sure that Medicare patients have continuous access to care, and that providers have the tools and information needed to make the change. To look up a Medicare patient’s new Medicare number, see https://www.cms.gov/Medicare/New-Medicare-Card/Providers/New-Medicare-Card-Provider-Letter.pdf.