Source: Sarah Jane Tribble, KFF Health News (NPR)

Enrollment in Medicare Advantage plans has grown substantially in the past few decades, enticing more than half of eligible people, primarily those 65 or older, with low premium costs and perks like dental and vision insurance. As the private plans' share of the Medicare patient pie has ballooned to 30.8 million people, so too have concerns about the insurers' aggressive sales tactics and misleading coverage claims.

While beneficiaries who enrolled first in traditional Medicare are guaranteed to qualify for a Medigap policy without pricing based on their medical history, Medigap insurers can deny coverage to beneficiaries transferring from Medicare Advantage plans or can base their prices on medical underwriting.

Read Full Article: Some older Americans feel trapped in Medicare Advantage plans