Medicare
Plans come in various designs including special assistance. Seeking the best design for a year or for a life time takes time and understanding.
Plan A - Hospital
Plan B - Doctor
Plan C - Med Advantage
Plan D - Pharmacy
Plans F- N - Medigap Plans//Supplemental Plans
It is best to be aware of options ahead of the time to make a choice. There are a number of companies depending on the state where you retire, prices are currently within a window yet different, and the current mix of options ask you to decide based on your need.
This is part of managing your wealth - it is an obligation you will have and must fit into your budget.