Medicare Advantage Plans must offer emergency coverage outside of the plan's service area (but not outside the U.S.). Many Medicare Advantage Plans also offer extra benefits such as dental care, eyeglasses, or wellness programs. Most Medicare Advantage Plans include Medicare prescription drug coverage (Part D).

What is a Medicare Advantage plan? Medicare Advantage plans are offered by private insurance companies - like Humana - contracted by the federal government.

Together, UnitedHealthcare and Humana account for nearly half (47%) of all Medicare Advantage enrollees nationwide. In nearly a third of counties (32%; or 1,013 counties), these two firms account for at least 75% of Medicare Advantage enrollment.

Lower out of pocket costs Under Medicare Advantage, each plan negotiates its own rates with providers. You may pay lower deductibles and copayments/coinsurance than you would pay with Original Medicare. Some Medicare Advantage plans have deductibles as low as $0.

UnitedHealthcare UnitedHealthcare, alone, accounts for 29% of all Medicare Advantage enrollment in 2023, or 8.9 million enrollees. Together, UnitedHealthcare and Humana account for nearly half (47%) of all Medicare Advantage enrollees nationwide.

Plan F has the most enrollees overall. But Plan G has the second most enrollees. While these plans are the most popular, it's essential to consider your healthcare needs and not enroll in something just because everyone else has that policy.

Together, UnitedHealthcare and Humana account for nearly half (47%) of all Medicare Advantage enrollees nationwide. In nearly a third of counties (32%; or 1,013 counties), these two firms account for at least 75% of Medicare Advantage enrollment.

If you joined a Medicare Advantage Plan during your Initial Enrollment Period, you can change to another Medicare Advantage Plan (with or without drug coverage) or go back to Original Medicare (with or without a drug plan) within the first 3 months you have Medicare Part A & Part B.

In total, 3,998 Medicare Advantage plans are available nationwide for individual enrollment in 2023 – a 6 percent increase in the number of plans (228 more plans) offered in 2022 and the largest number of plans available over the period we examined, which goes back to 2010 (Figure 2; Appendix Table 1).

UnitedHealthcare Best Overall AARP/UnitedHealthcare UnitedHealthcare (UHC) is the largest provider of Medicare Advantage plans. UnitedHealthcare's MA plans - co-branded with AARP - earn high marks for plan quality and member experience.

One of the biggest differences between Part C plans and Original Medicare (also known as fee-for-service) is that Medicare Advantage often has limited networks of doctors and hospitals and charges you more to see out-of-network providers - if you're allowed to see them at all.

Lower out of pocket costs Under Medicare Advantage, each plan negotiates its own rates with providers. You may pay lower deductibles and copayments/coinsurance than you would pay with Original Medicare. Some Medicare Advantage plans have deductibles as low as $0.