MADP serves as a consumer protection, allowing beneficiaries a 45-day period, after they have enrolled in an Medicare Advantage plan during the Open Enrollment Period, to decide whether the plan is right for them. The Medicare Advantage Disenrollment Period (MADP) lasts from January 1st through February 14th of each year. As the name implies, the Medicare Advantage Disenrollment Period is an opportunity to disenroll from Medicare Advantage plans. During the MADP, a beneficiary can switch from a Medicare Advantage plan to traditional Medicare. It also provides an opportunity to enroll in a Part D drug plan for those beneficiaries who have not already done so.