CMS announced the Medicare Part B premium amounts today. The premium that most Medicare Part B beneficiaries will owe is $99.90 per month. The details for recent enrollees and high income enrollees are available here. That's about a 3% increase over 2011 which is in line with the S&P health care index for Medicare payments that the FEHBlog tracks.
This information is very relevant to FEHB plans because there is a large cadre of retired FEHB enrollees who are Medicare eligible.