@lulu1944 A person at Medicare.gov was very helpful today. Now I know that to check the formularies for Part D plans I need to know the dosages of the drugs, the quantity and the frequency of the prescription. That is another small research project since I am not presently taking any meds.

@lulu1944 I may not have read your post(s) correctly and you may have already called your State Insurance Office for help. They can help with looking at the Advantage Plans with the D plan included, built into the insurance plan...meaning you are no longer on Original Medicare when you have Advantage Plan you are basically going right into and directly involved with an Insurance Carrier Plan. They can also help you with the Original Medicare Plan in which you choose a Supplemental Plan (Medigap) where you stay on Original Medicare and add a Supplemental Plan and a D Plan. You then pick and choose your D plan according to what medications the Plan D('s ) cover(s). You can change the D Plan each year during the open enrollment period if you need to change due to a change in mediations etc.
It is much easier to understand the Supplemental Plans because each plan is plainly explained .....Plans G, N, K L and possibly F for example vs the Advantage Plans are very difficult to understand because each insurance company can have differences from one another, somewhat.
Hope I am not repeating what you already know. As you know open enrollment gives you more time yet to grasp all this information. It can be very trying but as you know this decision is so important health wise, financial wise and the long term.
Barbara