Thanks for correcting , I'm actually confused about that

I do have a few questions want to ask :

 1. do all the MA need to pay part B or only MA 0 needs to pay part B ? 

2. Initially Part B depends on the income , what if my income change in a few yrs ? would it be easy to adjust the Part B income base ? 

3. As someone mentioned , would it be hard to switch from MA to Medicap ? how about other way around ? 

 

Thanks very much