Medicare Advantage Cuts Force Millions to Shop for 2027 Coverage

The retreat, by the numbers

The largest private Medicare insurers are pulling out of markets that no longer make money for them, and seniors are absorbing the disruption. UnitedHealth Group and Humana are dropping Medicare Advantage plans that together cover more than one million people heading into the 2027 plan year. UnitedHealth confirmed about 390,000 affected members, and Humana's cuts reach about 600,000 enrollees.11 Analysts reviewing federal data found that CVS Health's Aetna and Centene are also shrinking their Medicare Advantage footprints.11

The one-million figure is only a starting point. A Medicare Market Insights review of federal data, reported by CNN, found that nearly 3.2 million Medicare Advantage enrollees, close to 11% of the total, must choose new coverage for 2027.17 A Modern Healthcare tally, which includes people whose carriers are leaving entirely and those hit by enrollment caps, puts the number of enrollees forced to shop at 3.8 million or more.18 More than one million people in stand-alone Part D drug plans are also losing their plans, according to Oliver Wyman.17 Early estimates were lower. In late September, Politico reported that UnitedHealthcare's withdrawal would affect about 180,000 members in 109 counties.16 The best explanation for the spread is that the scope kept growing as insurers released plan files and analysts worked through them. The Bloomberg figure counts only two companies. The larger estimates count the whole market, so they better describe what seniors face.

The county-level data point the same way. KFF found that UnitedHealth is leaving 228 counties while entering nine, and Humana is leaving 62 while entering four.12 Health Care Service Corporation, which runs several Blue Cross Blue Shield plans, is leaving 498 counties, and Centene is leaving 359.12 Molina Healthcare and Clear Spring Health's parent company are leaving the general-enrollment Medicare Advantage drug-plan market altogether.12 At least 11 insurers that sold individual Medicare Advantage plans in 2026 will not sell them in 2027, up from seven that left the year before. Almost all of them are owned by health systems.18

Where the reporting diverges: is this a crisis?

The federal government describes the market as stable. CMS projects that more than 99% of beneficiaries will still have access to at least one Medicare Advantage plan in 2027 and that 97% will have at least ten choices.12 It also expects the average monthly premium to fall from $14.37 to $12, and the total number of plans to dip only slightly, from 5,553 to about 5,532.12 CMS Administrator Mehmet Oz has highlighted the lower premiums.16

Both descriptions are accurate, but the national averages hide the real change. A falling premium tells seniors little when the cost of actually using the plan is rising. The average maximum out-of-pocket limit for Medicare Advantage plans is going up about 9% for 2027, and some insurers are cutting dental allowances and Part B premium "givebacks."13 Average drug deductibles are rising 23%.14 The Part D out-of-pocket cap goes from $2,100 to $2,400.14 Even the industry's own advocacy group, the Better Medicare Alliance, expects higher out-of-pocket costs and fewer extra benefits.16

The effects are also uneven by geography. KFF counts 193 counties, home to about 638,000 beneficiaries, where no general-enrollment Medicare Advantage drug plan will be available in 2027, up from 123 counties this year.17 Modern Healthcare's separate count finds 181 counties with no Medicare Advantage plans at all, up from 67.18 The two methods differ, but both show the number of counties without coverage roughly doubling or more, with rural areas hit hardest.12 National figures like the 99% access rate hide that concentration.

Why insurers are leaving

The insurers' explanation is mostly about money. CMS finalized an average payment increase of 2.48% for 2027, more than $13 billion in new money and well above the nearly flat 0.09% it proposed in January. Insurers still say payments have not kept up with medical costs.11 Higher use of care by seniors, pharmacy costs and changes to Part D that shift financial responsibility onto plans are all cited as pressures.12

The pullback is targeted rather than total. Special Needs Plans, which serve people with chronic conditions or people who qualify for both Medicare and Medicaid, are projected to grow about 9% even as other offerings shrink.13 Humana says it hopes to keep about 40% of its affected members by moving them into other Humana plans.13 One investor-focused analysis put it plainly: insurers are giving up reach in exchange for better returns.14 That framing fits the evidence better than any claim that the business has stopped working. The companies are cutting the parts that lose money and keeping the parts that don't.

The local effects are already visible. Blue Cross Blue Shield of Massachusetts is ending Medicare Advantage coverage for about 20,000 seniors, about 65% of them in Worcester County, where executives say local care costs exceed federal payments. Mass Advantage is shutting down its coverage for about 7,500 members.15 Some seniors who keep their plans are losing their doctors instead. Becker's has tracked 35 health systems ending contracts with Medicare Advantage insurers in 2026.20

The deadline risk

Members whose plans end can pick a new plan during open enrollment, which runs Oct. 15 to Dec. 7. Those who do nothing are moved to original Medicare, and UnitedHealthcare says they will have a special window through Feb. 28, 2027, to choose a new Medicare Advantage plan.1119 The risk is that original Medicare does not cover prescription drugs unless the person signs up for a separate Part D plan. A senior who ignores the termination letter could find the gap in January at the pharmacy counter.17 People who lose a Medicare Advantage plan this way also get a limited guaranteed right to buy certain Medigap policies without being turned down or charged more because of their health.19

Lower drug prices arrive at the same time

Not all the news for 2027 is bad. Medicare's second round of negotiated drug prices takes effect Jan. 1 and covers 15 drugs, with cuts of 38% to 85% from 2024 list prices.26 Semaglutide, sold as Ozempic, Wegovy and Rybelsus, drops from $959 to $274 for a 30-day supply. The diabetes drug Janumet falls 85% to $80.23 CMS estimates that Part D enrollees will save about $685 million out of pocket.28

The savings for patients are modest next to the size of the program, and how much any one person saves depends on the plan's tiers and deductibles.22 Safety-net clinics also face a tradeoff: for about 41% of drug formulations on the list, the 340B discount price that clinics already get may still be lower than Medicare's negotiated price.25 On balance, the new prices help, but they offset only part of the rising deductibles and out-of-pocket limits seniors face.

The same cost pressure in job-based coverage and Medicaid

The pullback in Medicare Advantage is one sign of cost pressure across the whole system. KFF's 2026 employer survey found the average family premium rose 5% to $28,303, while workers' share jumped 9% to $7,471. That is faster than wage growth of 3.7% and inflation of 2.7%.31 Forecasts for 2027 are worse. Marsh projects an 8.2% increase, the largest since 2003, Aon projects 9.5%, and WTW projects 11.1% before plan changes.3336 Employers have underestimated their actual health spending for three years running.33 These reports cite the same causes insurers cite: higher use of care, hospital prices and drug costs.31

Medicaid adds another layer. Under the 2025 budget law, most adults in the expansion group must document 80 hours a month of work or qualifying activity starting Jan. 1, 2027, and must renew eligibility every six months.3 The Urban Institute projects that work requirements alone could cut enrollment by 3 million to 7 million people in an average month of 2028, and by up to 10.1 million when combined with the more frequent checks.6 Nebraska started early, and more than 1,000 people there had lost or been denied coverage by August. Reported cases include people who should have been exempt.4

Hospitals sit where all these pressures meet. The American Hospital Association estimates that the law's Medicaid cuts will raise rural hospitals' uncompensated care by nearly $20 billion and put more than 300 rural hospitals at risk of closing, converting or cutting services.41 Hospital leaders warn that unpaid care eventually gets passed on to insured patients through higher prices.45

The takeaway

Read together, the coverage shows costs being pushed down the line. Insurers are leaving counties where payments don't cover expenses, employers are shifting premiums onto workers, and Medicaid is moving its costs onto paperwork and onto hospitals. Each step lands on patients. Rural relief bills are pending, and advocates expect action after the Nov. 3 midterms, possibly in a year-end funding bill.43 For the seniors now sorting through termination letters, the Dec. 7 deadline matters more than the national averages.