Gregory WrightUnitedHealthcareMedicare open enrollment season is quickly approaching. During this time, Medicare beneficiaries make important choices that affect their medical costs, the doctors they see and prescription coverage for next year.Whether they are enrolling in Medicare for the first time or looking to change their coverage during Medicare’s annual enrollment, Dr. Anne Docimo, chief medical officer of UnitedHealthcare and responsible for outcomes of more than 50 million Medicare members, offered some useful tips and information to help older adults, their caregivers and newly eligible beneficiaries on what they need to know about signing up or renewing benefits during this open enrollment season.Docimo said, “When can people enroll in a Medicare plan? Timing