Rich, Are you saying that Medicare Part B is paying 80% and your medigap Plan F covers the other 20%? I am so curious because I will need to go on Medicare soon. I have a CIDP diagnosis and have been getting IVIG for about 12 years, about twice per wk. I have been getting at home, and I understand I will no longer be able to do this, but will have to go to outpatient or infusion center. But I have been told by some that my meds will fall under Part D. If so, that will be a killer for me, since the cheapest I can find will cost at least $26,000 per year. Any info will help. Thanks!