Starting in April 2018, Medicare beneficiaries will begin receiving new Medicare ID cards that don’t have Social Security numbers on them. This change was announced in September 2017, and it’s an effort to combat identity theft and fraud. The new cards, which will be mailed out over the course of a year (all beneficiaries will have them by April 2019), will have randomly generated ID numbers instead of Social Security numbers. You can continue to use your current card until your new one arrives. Once it does, you’ll want to destroy and securely dispose of your old one, and begin using the new one instead.
