Toni: I am turning 65 in July and am an insulin dependent diabetic. I take two insulins which are rather expensive. I am concerned about the Part D Donut Hole because I’ve seen my husband struggle with his current choice. Last year, my husband Steve changed from his Medicare Supplement Plan with a separate Part D plan to a Medicare Advantage PPO plan.  He was told that his doctors were in the plan and all of my husband’s heart meds were covered.