Medicare Advantage Facts Data and Statistics - 2021

Medicare data statistics 2021Medicare Advantage Statistics 2021

This resource page provides pertinent information for consumers and insurance professionals compiled by the American Association for Medicare Supplement Insurance. Material may be shared and used. We would greatly appreciate credit to the “American Association for Medicare Supplement Insurance” with links back to this webpage. Thank you.


Medicare Supplement Statistics – 2021

Overall Medicare Insurance Data Statistics – 2020


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  • Medicare Advantage Plans in the United States; 2021Medicare-Advantage-Plans-2021

    There are over 3,500 Medicare Advantage (MA) plans available to beneficiaries across the United States.
    Just 10 years ago, fewer than 12 million members were enrolled in Medicare Advantage plans.

    Source: American Association for Medicare Supplement Insurance analysis of CMS data. April 2021.

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    Medicare-Advantage-Plan-Growth-2021Growth of Medicare Advantage Plans; 2021 versus 2020

    The number of Medicare Advantage (MA) plans available continues to grow.  The number of plans increased by 13% (402 plans) compared to 2020.  Source: American Association for Medicare Supplement Insurance analysis of CMS data. June 2021.

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    MA-plan-growth-2021-250States With Most Medicare Advantage Plans Available; 2021 versus 2020

    Florida has the most available Medicare advantage plans (527), followed by California (424), Texas (289), New York (276), Pennsylvania (246), Ohio (202), Michigan (169), Washington (157), Georgia (149) and Illinois (147).

    Source: American Association for Medicare Supplement Insurance analysis of CMS data. June 2021.

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    Medicare-advantage-plan-enrollees-2021MA Enrollees Continue to Grow

    Medicare Advantage (MA) is projected to grow by 2 million members this year reaching 26.5 million beneficiaries.  The top-25 Medicare Advantage insurers enroll a combined 21.6 million lives, or 87 percent of the national market.  Nine of these plans saw growth over 10% this past year. Source: Medicare Advantage, 2021 Wunderman Thompson, reprinted with permission by AAMSI.

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    Medicare-Advantage-statistics-2020Enrollment, Medicare Advantage

    Medicare Advantage (MA) penetration has grown from a low of 5.3 million participants (2003 & 2004) to 24.1 million in 2020.  The percent of Medicare beneficiaries grew from 13% (2003) to 39% (2020).

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    Medicare-advantage-market-penetration-by-countyMedicare Advantage Penetration Ranges from 1 to 70%

    The penetration of Medicare Advantage (MA) plans varies significantly from one county to the next – ranging from a low of 1 percent to over 70 percent in certain counties across the United States.

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    Medicare Advantage plans are another way to get your Medicare Part A and Part B coverage. Medicare Advantage Plans, sometimes called “Part C” or “MA Plans,” are offered by Medicare-approved private companies that must follow rules set by Medicare.

    Today, most Medicare Advantage plans include some form of drug coverage (Medicare Part D).  Unlike Medicare Supplement insurance, with an MA plan, in many cases, you’ll need to use health care providers who participate in the plan’s network and service area for the lowest costs. These plans set a limit on what you’ll have to pay out-of-pocket each year for covered services.  This can help protect you from unexpected costs. Some plans offer out-of-network coverage, but sometimes at a higher cost.

    It pays to compare your plan options.  To find a local Medicare insurance agent use the Association’s free directory.  Agents will list whether they offer both Medicare Advantage as well as Medicare Supplement plans.


    Advantage Statistics 2021 Not Found Here? Reporters and editors. You can call or Email us and we will work to get the data you are seeking. Phone Jesse Slome at 818-597-3205.

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