Medicare Advantage Exits Hit Nearly 1 Million Seniors in 2027

What happened

The two biggest private insurers in Medicare are cutting back sharply for 2027. UnitedHealthcare says about 390,000 members are enrolled in plans it is discontinuing, and Humana puts its own exits at roughly 600,000 enrollees. Together that comes to about 990,000 people.36 The timing matters for those members. Medicare's annual open enrollment runs from October 15 through December 7, and the discontinued plans end on December 31.36

The news isn't entirely new. Humana CFO Celeste Mellet first gave the 600,000 figure on a July earnings call, which works out to about 8% of the company's roughly 7.2 million Medicare Advantage members.34 UnitedHealthcare dated its non-renewal notices October 2.32 National attention came later in October, once open enrollment had started and seniors began comparing plans.3339

The cuts don't fall evenly across plan types. UnitedHealthcare aimed mainly at preferred provider organization (PPO) plans. These let members see doctors outside the network, and they cost insurers more to run.32 UnitedHealthcare President Bobby Hunter described this as a continuation of the company's push toward health maintenance organizations (HMOs) and special needs plans.34 Humana took a narrower approach. Mellet said the company dropped low-return plans and kept profitable ones instead of cutting across the board.34 Several outlets report that Humana went after plans rated 3.5 stars or lower.3637

Where the coverage diverges

The reporting agrees on the numbers. It disagrees on what they mean, and how outlets describe the stakes depends a lot on the framing they chose.

The first split is over the word "lose." Some coverage says hundreds of thousands of people will lose coverage, and attributes the decision to protecting corporate profits, a framing that cites Fortune.3139 Both insurers push back on that. Humana says most affected members will be offered another plan, and UnitedHealthcare says its affected members can move to a different UnitedHealthcare Medicare Advantage plan.33 Neither framing tells the whole story. Nobody in these plans loses Medicare. Anyone who doesn't pick a new plan goes back to Original Medicare automatically.36 But Original Medicare has no annual out-of-pocket cap and no built-in drug coverage. People who fall back to it also lose the dental, vision and hearing benefits most Advantage plans include.40 For someone who misses the deadline, that is a real drop in protection, even if "lost coverage" overstates it.

The second split is over scale. Reports based on Bloomberg described more than one million seniors affected3235. Most later reporting settled on "nearly" a million, or about 990,000.3638

The third split, and the most important, is about why this is happening. UnitedHealthcare blames higher costs and heavier use of medical services across the industry.33 Hunter listed funding pressure, rising medical and drug costs, and increased utilization as the main forces.36 The government doesn't accept the idea that it is underpaying plans. CMS finalized a 2.48% average payment increase for 2027, worth more than $13 billion, which is far more generous than the near-flat 0.09% it proposed in January.32 CMS Administrator Mehmet Oz framed the agency's approach as "slashing handouts to big insurance companies" while keeping premiums stable.8 Both accounts can be true. The pay raise doesn't undo higher utilization, and plan exits are the tool insurers use to protect margins when benefits alone can't absorb rising costs.

"Stable" on paper, leaner in practice

CMS calls the 2027 Medicare Advantage market stable. It projects the weighted average monthly premium will fall from $14.37 to $12, and that 97% of beneficiaries will be able to choose from at least 10 plans.36 Analysts who looked closely at plan details see something different. They say insurers are raising cost-sharing, moving members into narrower networks and cutting extra benefits.34 A Leerink Partners review of the Medicare Plan Finder found that many large carriers trimmed dental benefits and increased cost-sharing for 2027, though they mostly held primary-care costs steady. Clover Health's out-of-pocket maximum rose by $1,144 for every sampled member.34

That gap matters more than the headline premium. A low premium hides a lot when the deductible, network and dental allowance are all getting worse. Consultant Alexis Levy put it simply: seniors who keep their plan shouldn't assume they keep the same benefits.34

The market is also getting smaller. Government projections based on insurer feedback put 2027 Medicare Advantage enrollment at about 34 million, roughly 6% below today. Humana's footprint is shrinking from about 85% of U.S. counties to just over 80%.32 Analysts say Aetna and Centene are pulling back too.32 Growth is shifting to chronic-condition special needs plans, which carry higher margins, and to HMOs, which control spending through tighter networks.34 In practice, PPO-style flexibility is becoming a premium product, and more seniors are being moved into managed care.

The insurers are also counting on members staying with them. Humana kept just over 40% of the members affected by its 2025 exits and expects about the same this time.37 That suggests more than half of displaced Humana members may end up with another insurer or in Original Medicare.

Drug prices: relief and new costs at once

The plan exits are hitting at the same time as a mixed picture on drug costs. The annual cap on out-of-pocket Part D spending rises from $2,100 to $2,400 in 2027. The standard deductible goes from $615 to $700.1 Negotiated prices also take effect January 1 for 15 more drugs, including Ozempic, Rybelsus and Wegovy. CMS expects that to save enrollees about $685 million in out-of-pocket costs.1 Spread over about 5.3 million Part D users of those drugs, that saving is modest. On the other side, CMS estimates the program itself will spend about $12 billion less after rebates.6

Premiums are where the official story and the plan-level story diverge. A temporary premium stabilization program that started under Biden is ending after 2026.2 CMS says the average standalone Part D premium will rise by less than a dollar, to $36 a month.8 But the national base beneficiary premium is rising 6%, to $41.33, the largest increase the law allows.7 A Forbes sampling of ZIP codes in Fort Lauderdale, Los Angeles and Milwaukee found no zero-premium Part D plans at all. In Milwaukee, every plan raised its premium.10 For people pushed out of Medicare Advantage who now need a standalone drug plan, that shift will be felt directly.

The same pressures are hitting employers

What happens in Medicare Advantage isn't separate from the rest of the system. Employers are expecting their steepest benefit-cost increase in more than two decades. Marsh projects an 8.2% rise per employee in 2027, the highest since 2003, even after employers cut benefits. Without those cuts, the figure would be 11%.22 Aon projects 9.5%, which would push average cost per employee above $19,000.24 Business Group on Health puts the median at 9.2% before plan changes.25

The causes look a lot like the ones insurers cite for Medicare: hospital prices, cancer drugs and demand for GLP-1s.21 Marsh also points to provider consolidation, which gives health systems more leverage in price negotiations. It adds that when government payments lag inflation, providers try to make up the shortfall from private plans.24 This is cost-shifting, and workers end up paying for it. About two-thirds of large employers expect to raise employees' share of premiums.22 Aon estimates worker spending on premiums and out-of-pocket costs at nearly $5,300 a year.23

Medicaid cuts raise hospital costs for everyone else

The third pressure point is Medicaid. Under the 2025 One Big Beautiful Bill Act, most adults without dependents in Medicaid expansion states must document 80 hours a month of work or a qualifying activity. States have to start checking by December 31, 2026.16 The Urban Institute estimates 4.9 to 10.1 million people could lose Medicaid by 2028.19 That research also finds that 19% to 37% of people who already work could lose coverage anyway, often because of documentation problems.17

The effect on hospitals is direct. The Commonwealth Fund projects operating margins in expansion states falling 11.7% to 13.3%, and safety-net hospital margins falling by up to 29.6%.11 In Connecticut, officials expect about 164,000 residents to lose coverage, and hospitals are planning for losses in the hundreds of millions of dollars.1314 When hospitals provide more care that never gets paid, the gap tends to show up in the commercial rates employers already describe as unaffordable.24

The bottom line

The Humana and UnitedHealthcare exits are best understood as one sign of a broader pullback across the health system, not a single corporate decision. Insurers, employers and state Medicaid programs are all reacting to the same rising costs by pushing more of them onto patients. That happens through narrower networks, higher deductibles, stricter eligibility rules or bigger paycheck deductions. The nearly one million affected seniors have firm deadlines: December 7 for open enrollment, and a special election period that runs through February 28, 2027.40 The broader problem has no deadline, and nothing in this enrollment season suggests anyone is moving to fix it.