Seniors on Medicare will have to pay more than $20 more per month extra in premiums next year, a large increase that officials in part attributed to possible coverage of a pricey and controversial new Alzheimer's drug. The Biden administration announced Friday that the monthly premium for Medicare Part B, which covers services like doctors office visits, will increase by $21.60, from $148.50 in 2021 to $170.10 in 2022.
