First you should know these are all apparently the same group although they are listed seperately on the Medicare.gov website.
On the Medicare.gov website you have a page to help you choose your Medicare Part D coverage. You are told to list all the drugs you are on, and then you are shown those companies that claim they will cover each and every one of those drugs.
We did that. We chose a plan covering all five of my husbands medications, United Healthcare Group. They have now denied two of his most important, life saving prescriptions.
He can die fast, or slow. Fast if he has a heart attack from not having his Corlanor. And very very slow and painfully as his bones soften in response to an over production of hormones from his Parathyroid Gland now that they have denied the Hectoral.