Please find the phone number, hours of operations and other related detail to contact AARP - MedicareRxPlan . You can share your experiences as well as improve customer support, but its not the beat way to reach AARP - MedicareRxPlan . You can contact AARP - MedicareRxPlan by calling on a phone number shown below. You can also talk to a live person of AARP - MedicareRxPlan on phone or directly make a call to the corporate headquarters of AARP - MedicareRxPlan . Phone Number: 888-867-5575 Call and Help Time: Average Wait: 33 mins — 24 hours, 7 days Reach a live person: Press 1; hold through message.