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The TV campaign, which first aired in 2018 and stars 78-year-old Joe Namath, is for the Medicare Coverage Helpline. With a crinkled smile, Namath lists a handful of health care benefits - from no co-pays to home-delivered meals - intended to attract callers on Medicare.

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.

Sources of Coverage among Medicare Beneficiaries, 2020

The Medicare commercial that features Joe Namath is intended to sell Medicare Advantage plans through their partner company. Medicare Advantage plans are available through many reputable private insurance companies. The Joe Namath commercial is not from Medicare or any government agencies.

Spending on Part B services (including physician services, outpatient services, and physician-administered drugs) accounts for the largest share of Medicare benefit spending (48% in 2021).

With a Medicare Advantage Plan, you may have coverage for things Original Medicare doesn't cover, like fitness programs (gym memberships or discounts) and some vision, hearing, and dental services (like routine check ups or cleanings).

Health insurance companies that are the biggest players in privatized Medicare Advantage coverarge, including Cigna, CVS Health's Aetna, Elevance Health, Humana and UnitedHealth Group are launching plans in scores of new counties for 2024.

Overall, Puerto Rico has the highest Medicare Advantage penetration, with 94 percent of Medicare beneficiaries enrolled in a Medicare Advantage plan. A decade ago, the share of Medicare beneficiaries in Medicare Advantage plans did not exceed 50% in any state (other than Puerto Rico).

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.

Medicare Advantage Plans, sometimes called “Part C” or “MA Plans,” are offered by private companies approved by Medicare. If you join a Medicare Advantage Plan, the plan will provide all of your Part A (Hospital Insurance) and Part B (Medical Insurance) coverage.

A Medicare Advantage (MA) plan is a type of health plan offered by a private company that contracts with Medicare to provide you with all your Medicare Parts A and B benefits. MA plans include health maintenance organizations, preferred provider organizations, private fee-for-service plans, and Special Needs Plans.