What the data shows, and what it does not
The central finding came from Johns Hopkins researchers who analyzed Medicare Advantage plan and enrollment data from 2017 through 2026. Their estimate was striking: roughly 2.9 million enrollees had to leave their existing plan because it exited their county for 2026. Reuters reported the same figure and noted that the disruption hit rural enrollees at about twice the rate seen in urban areas. That finding is important, but it also needs to be stated precisely. These beneficiaries were not necessarily forced out of Medicare Advantage entirely. Many were required to choose a different Medicare Advantage plan. Others may have decided to move back to traditional Medicare. The disruption was still significant, but accuracy matters because readers deserve to know the difference between being forced to switch plans and being pushed out of the program altogether. The researchers found that annual forced disenrollment rates had averaged just above 1% from 2018 through 2024. That rate jumped to 6.9% in 2025 and then reached 10% for 2026, a dramatic break from the relative stability beneficiaries had grown used to. The underlying JAMA research letter tied the increase to a wave of plan exits, not simply routine reshuffling during open enrollment. At the same time, the federal government’s broader message sounded far calmer. In its 2026 rate announcement, CMS said payments to Medicare Advantage plans were projected to rise 5.06%, or by more than $25 billion. Later, CMS said in a public statement that Medicare Advantage and Part D were expected to remain stable in 2026, pointing to average premiums, benefits, and plan availability. Both things can be true at once. Nationally, the market can still look stable on average. For a meaningful share of actual enrollees, it can still be highly disruptive. That disconnect is what makes the 2026 story worth readers’ attention.Why this happened
The simplest explanation is that insurers trimmed or exited plans they no longer wanted to carry into 2026. The Johns Hopkins researchers said likely drivers included payment changes, revisions to risk adjustment, and higher-than-expected medical use among Medicare Advantage members. Reuters also reported that insurers had cited financial shortfalls in 2025 as they scaled back offerings heading into 2026. That context matters because this was not just random churn. It followed a period when Medicare Advantage had expanded rapidly, with more plans, richer extra benefits, and aggressive competition for enrollment. Once margins tightened, some insurers pulled back. That meant beneficiaries in certain counties were suddenly dealing with terminations that had been rare for years. CMS’s own 2026 plan crosswalk data tracks which plans were renewed, consolidated, or terminated. Those files do not read like consumer warnings, but they help explain why high-level stability language can obscure individual disruption. A market can retain broad national reach while still producing abrupt losses in specific counties and states. KFF found that the average Medicare beneficiary still had access to 32 Medicare Advantage prescription drug plans in 2026, down from 34 in 2025. That does not sound alarming by itself. But averages hide where the pain landed. When options fall from many plans to a few, or when a familiar plan vanishes in a rural county, the practical impact can be severe even if the national count still looks healthy.Where the disruption hit hardest
Some states saw far more turmoil than others. Reuters reported that in seven states, more than 40% of Medicare Advantage enrollees were affected by plan exits, with Vermont standing out at 92%. That figure gives the national story a human scale. For seniors in those markets, this was not a marginal change tucked away in government paperwork. It was a major shake-up in year-to-year coverage. Vermont became one of the clearest examples. Vermont Blue Advantage said it would stop offering Medicare Advantage plans for 2026, citing pressure in the market and high medical utilization among members. In places with fewer competing carriers to begin with, the exit of even one plan can leave beneficiaries with sharply reduced choices and new uncertainty around provider access. That is one reason rural areas were hit harder. If a metro area loses one insurer, beneficiaries may still have several viable alternatives. In smaller counties, a single withdrawal can reshape the whole menu.What it means for seniors
What readers should take away
The strongest version of this story is not that millions of seniors were forced off Medicare Advantage altogether. The evidence does not support that claim. The stronger, more accurate story is that nearly 3 million Medicare Advantage enrollees had to switch plans for 2026 because insurers exited markets, and that disruption exposed a real gap between national stability messaging and what many beneficiaries experienced on the ground. For readers, that is the point that matters. A program can post healthy enrollment, stable average premiums, and broad national availability while still producing painful instability for the people already enrolled. In 2026, that is exactly what happened for millions of Medicare Advantage beneficiaries.
Paul Anderson is a finance writer and editor at The Financial Wire. He has spent seven years writing about investment strategies and the global economy for digital publications across the US and UK. His work focuses on making sense of economic policy, cost-of-living issues, and the stories that affect everyday Americans.
