The formulary finder at medicare.gov is the site to use for Part D plans.

If you think it appropriate to your friendship, you could call the clinic, get the specific contact information for the person they would need to speak with, and pass it on. Sometimes it is just too intimidating to make that first, cold call, not even really knowing who to ask for. Or you could offer to call with your friend present, so you could hand the phone off to them.

I don't know that I can help at all, but if you like, pm me with more information, i.e. the hospital and oncology clinic involved, the medications, if you know them, the part D plan, and info on any additional insurance.

Janie