Kaiser Family Foundation releases its look at enrollment trends as of 2017.
Some highlights in the June 2017 Issue Brief:
Enrollment in MA plans has grown 71 percent since 2010 with one in three Medicare beneficiaries enrolled in the plans.
Enrollment is concentrated in a small number of firms with UnitedHealthcare and Humana serving 41 percent.
Get a detailed look at the sector in the 23 page KFF Issue Brief