@joycehocm you are welcome. I will have medicare next year. My health insurance is paying for all of that except the $210 monthly copay. My Cardiologist's nurse helped me to apply to assistance with Bristol Myers Squibb (BMS) (Camzyos' manufacturer) so they approved me to pay $200 monthly copay for me and I only pay $10 monthly copay.
Next year, I will purchase medicare part A and its supplemental B. I know they will not cover, people here told me my nurse will help me with the paperwork for BMS who will evaluate my income and an additional option with a 3rd party foundation that provides help for different kind of medicines among them Camzyos. By that time I will be able to find out how much I have to pay since I am aware medicare will not cover. I hope this helps.