Also, if you're a higher-income retiree, the Medicare Part B income bracket you fall in may be impacted in 2018 as well due to changes with the Medicare Access and CHIP Reauthorization Act of 2015.  2018 IRMAA Part B Changes  

My mom had the same issue and brought it to my attention. After doing some research I found a good website that provided useful information and other options that would give her the same coverage and reduce the cost. I found out that Plan F is going ...