CMS learned of a MAXIMUS breach effecting 407,000 beneficiaries.
Impacted beneficiaries will be issued a new Medicare number accompanied by a letter. (View HERE)
The letter asks beneficiaries to:
- begin using the new Medicare number on December 29th and
- alert providers of their new Medicare number.
Plans will receive the related enrollment codes alerting them about the Medicare number changes. Plans have a process in place to update their internal systems accordingly. The 1-800-Medicare team has been notified.
Additional detail related to specific plans, beneficiaries, or geographical information are not available.