The news: Leading Medicare Advantage (MA) insurers will continue to exit markets in 2027, while tightening restrictions and reducing benefits in their remaining plans.

• About 390,000 people are enrolled in UnitedHealth Group plans that will be discontinued next year, per Bloomberg. UnitedHealth is the largest player in the MA market, and those members represent about 4% of its MA enrollment based on June KFF data.
• Humana, the second-largest MA insurer with just over 7 million members, said on its Q2 earnings call that it’s cutting plans covering about 600,000 people.
• Additionally, MA insurers will cut select benefits and narrow provider networks within plans, according to Bloomberg and Reuters.

These exits are a continuation of MA pullbacks over the past year-plus, driven by less favorable federal reimbursement rules and higher-than-expected post-pandemic medical care costs that squeezed insurer profit margins.

Why it matters: When insurers terminate MA plans or trim benefits, members face forced plan changes, potential provider access disruptions, and the challenge of finding new coverage. At least 1 million MA members must switch plans for next year, per Bloomberg, primarily because insurers have exited unprofitable markets. And that amount could be higher when counting enrollees from other MA insurers such as CVS Health/Aetna.

Medicare plans are already confusing to navigate and compare, so forcing members to change plans will compound existing knowledge gaps. Some 75% of Medicare beneficiaries say plan shopping is confusing, while 64% mistakenly believe all MA plans offer essentially the same coverage, including drug benefits and provider networks, per an October 2025 eHealth survey.

Implications for insurers and healthcare providers: MA members who are affected by plan changes can switch to Original Medicare or another MA plan starting October 15. Some will be automatically moved into another MA plan but may not understand how their coverage differs, while others may be unaware of upcoming changes or unsure how to navigate their options. For insurers, clear communication and enrollment support can ease disruption for departing members, helping limit dissatisfaction even when retention isn’t the goal.

Meanwhile, providers will likely see more patient churn. When a plan disappears, patients may move to a new MA plan, or enroll in another Medicare plan that could exclude their existing doctors or hospitals. That creates a risk of disrupted relationships and can shift patient volumes among competing health systems and practices. Providers will take on more of the burden of identifying affected patients, communicating which 2027 plans they accept, and directing them to authoritative plan information during open enrollment.

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