@rjd, When teriparatide was prescribed, the pharmacy called me to make sure I understood the cost. I didn't!!! so I called Medicare and was referred to my supplemental. My supplemental referred me to my Part D prescription plan and I was told $1927/month was the copay. I am not eligible for any financial assistance. I saw a second MD who prescribed Tymlos which is even more expensive and not included in my Part D formulary. I saw a third MD and he prescribed Evenity. I haven't made any decisions about medication and was surprised that he contacted the infusion center without further conversation - I was waiting for the results of the CTX and P1NP. I called the infusion center on Friday and they told me they couldn't tell me if Evenity was covered unless I had an appointment so I made an appointment and hope to hear back from them this week. I don't think I can take Evenity due to a blood clot DX in my 20s, but wanted to play this out pending further conversation with the doctor.

I forgot that Evenity is different (thanks @susanfalcon52) b/c it is given at an infusion center so I'm sure I'm wrong about that one and have to wonder why the my Part D prescription plan and the infusion center didn't tell me that. Based on what @windyshores wrote, I will call Medicare and double check on Tymlos. Nothing about this diagnosis is easy.