@djchambers: regarding RX drug coverage - Medicare Part “B” has covered all injections done at the Dr office or hospital for my treatments.
Just an idea, but perhaps you could ask that your mail order pharmacy send the rx drug to be delivered to your Dr office (as if they were going to administer it!) - maybe they would bill rx as a Medicare Part “B”? Speak with your Dr.
Our cancer treatments are extremely costly. Health Insurance changes can alter our choice of best care. Be sure to read all the “fine” print! 🙂