What happens to a member's enrollment in other MA plans when they enroll in a new MA plan?

When a member enrolls in a new Medicare Advantage (MA) plan, they are automatically disenrolled from their old plan. This is a fundamental rule governing MA plans and ensures that beneficiaries do not hold multiple enrollments simultaneously, which could lead to confusion regarding coverage and benefits. This automatic disenrollment helps to streamline the enrollment process and allows for clear coordination of benefits under the newly selected plan.

The system is designed this way to prevent overlapping coverage, which could complicate billing and claims processing. When a member decides to switch plans, they expect that the new plan will take effect without any gaps in coverage while also ensuring there are no conflicts with their previous enrollment.

In this context, the other choices do not align with how the enrollment process works for MA plans. Members cannot remain enrolled in both plans, nor can they choose to retain their old plan if they opt for a new one. Additionally, reapplication is not necessary as the automatic disenrollment takes care of the transition from the old plan to the new one seamlessly.