*All other parent organizations include organizations with less than 5% of enrollment. Percentages may not sum to 100% due to rounding. Parent organizations are based on ownership in 2025. For example, CVS acquired Aetna in 2018.
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Leading Medicare Advantage organizations by enrollment 2025
In 2025, some *** million Medicare Advantage (MA) beneficiaries were enrolled in a plan from the UnitedHealth Group Inc., which accounts for roughly ** percent of all MA enrollment. Medicare Advantage is an option that allows the beneficiary to receive care management from private health plan networks. It often also provides prescription drug benefits to the beneficiary without them having to enroll in a stand-alone Part D drug plan. This statistic depicts the leading Medicare Advantage organizations in the United States as of March 2025, based on enrollment.
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KFF. (July 28, 2025). Leading Medicare Advantage organizations based on enrollment in 2025 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 31, 2026, from /statistics/320694/medicare-advantage-organizations-within-medicare-in-the-us-by-enrollment/
KFF. "Leading Medicare Advantage organizations based on enrollment in 2025." Chart. July 28, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 31, 2026. /statistics/320694/medicare-advantage-organizations-within-medicare-in-the-us-by-enrollment/
KFF. (2025). Leading Medicare Advantage organizations based on enrollment in 2025. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 31, 2026. /statistics/320694/medicare-advantage-organizations-within-medicare-in-the-us-by-enrollment/
KFF. "Leading Medicare Advantage Organizations Based on Enrollment in 2025." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 28 Jul 2025, /statistics/320694/medicare-advantage-organizations-within-medicare-in-the-us-by-enrollment/
KFF, Leading Medicare Advantage organizations based on enrollment in 2025 ÌÇÐÄÆƽâ°æ, /statistics/320694/medicare-advantage-organizations-within-medicare-in-the-us-by-enrollment/ (last visited July 31, 2026)
Leading Medicare Advantage organizations based on enrollment in 2025 [Graph], KFF, July 28, 2025. [Online]. Available: /statistics/320694/medicare-advantage-organizations-within-medicare-in-the-us-by-enrollment/
