Hi - Part of my work in NH is to do Medicare Counseling (including helping to review Medicare Part D plans) under the SHIP Program. Florida has a similar program -
SHINE - Home. Part of the issue could be that Part D plans can now have "Preferred Pharmacies", and that also accounts for some of the cost differences you're seeing. You can do a personalized Part D comparison on
Medicare.gov: the official U.S. government site for Medicare or work with a SHINE person - they have regular times they're available at TV.