CMS recently notified Medicare plans that they processed 1.3 million Medicare Beneficiary Identifier reassignments with an effective date of April 14, 2026. It's likely the new MBIs are related to a data breach. ⟶
You may live in a state with declared emergencies that offer Special Enrollment Periods for Medicare Advantage and prescription drug plans. Do your clients qualify?
Effective October 1, 2025, Sonder Health Plans Medicare Advantage plans will be terminated. Sonder Health Plans is under an order of liquidation due to insolvency.