Is Your Medicare Plan Disappearing in 2027? What to Do Before Open Enrollment
Millions of Medicare beneficiaries have grown accustomed to treating fall enrollment season as an annual exercise in comparing premiums and extra benefits. In recent years, however, another question has become increasingly important: Will the plan you have today even exist next year? Medicare Advantage insurers have been eliminating individual plans, withdrawing from counties and consolidating offerings as medical costs rise and companies reassess which markets remain profitable.
The disruption was substantial heading into 2026. About 2.6 million people, representing roughly 13% of beneficiaries enrolled in individual Medicare Advantage plans with prescription drug coverage, were in plans that terminated at the end of 2025, according to KFF. Another group of beneficiaries was affected by plan consolidations that could automatically move them into another offering from the same insurer.
The final 2027 consumer landscape is still emerging as of September 1, 2026, so it would be premature to claim that a specific number of millions of beneficiaries will lose plans next year. CMS has finalized 2027 payment and benefit rules, and insurers have submitted their bids, but beneficiaries are only now approaching the period when Annual Notices of Change and non-renewal notices reveal what those decisions mean at the individual-plan level. The lesson from the last two years is clear enough: automatic renewal should never be mistaken for automatic continuity.
Medicare Advantage Is Retrenching After Years of Expansion
Medicare Advantage has not been in a long-term decline since 2018. In fact, plan availability expanded dramatically for years before beginning to contract more recently. The important trend is that the market has moved from rapid expansion toward consolidation as insurers become more selective about counties, benefits and products.
For 2026, 3,373 individual Medicare Advantage plans were available nationwide, down 9% from 2025. UnitedHealthcare exited 225 counties while entering only 14, Humana exited 198 while entering five, Elevance left 181 and CVS exited 160. The retreat affected rural areas disproportionately, although the overwhelming majority of beneficiaries whose plans ended still had another Medicare Advantage option available.
Rural beneficiaries have more reason to pay attention because fewer insurers can mean fewer substitutes when one leaves. In 2026, less than 1% of beneficiaries lived in counties with no Medicare Advantage plans available, but the number of counties without an option rose to 122. Beneficiaries in rural counties also represented 23% of people whose MA-PD plans terminated, despite accounting for only about 14% of overall enrollment in those individual plans.
That does not mean insurers are abandoning Medicare Advantage. More than half of eligible Medicare beneficiaries remain enrolled in the program, and CMS finalized payment policies projected to increase Medicare Advantage payments by 2.48%, or more than $13 billion, for 2027 before accounting for expected risk-score trends. Insurers are instead becoming more selective, concentrating on products and geographic markets where they believe medical costs, reimbursement and enrollment can produce acceptable economics.
Rising Medical Costs Are Forcing Insurers to Make Choices
Medicare Advantage insurers receive payments from the federal government to manage beneficiaries’ Part A and Part B benefits, often combining those benefits with Part D drug coverage and extras such as dental, vision, hearing or fitness programs. The model can be profitable when government payments, premiums and cost controls exceed medical claims and administrative expenses. When utilization rises faster than expected, those economics deteriorate quickly.
The industry has dealt with elevated medical utilization following the pandemic, particularly as beneficiaries returned for procedures and services that had been delayed. At the same time, changes in Medicare Advantage risk adjustment and quality-bonus calculations have altered how plans are paid. CMS’ 2027 policies continue updating risk-adjustment methodology and Star Rating rules, adding another variable insurers must incorporate when deciding whether a particular plan remains financially attractive.
Part D has introduced another layer of pressure. The Inflation Reduction Act substantially redesigned the drug benefit, transferring more financial responsibility to plans and drug manufacturers while reducing what beneficiaries can pay after reaching the annual out-of-pocket threshold. CMS has now codified those changes for 2027 and beyond, including elimination of the old coverage-gap phase and zero beneficiary cost sharing after the annual Part D out-of-pocket threshold is reached.
These pressures give insurers several choices. They can increase premiums, change copayments, reduce supplemental benefits, alter formularies, adjust provider networks or withdraw a plan from a market entirely. Beneficiaries often notice the termination first, but a plan that survives can change enough that simply keeping it may still produce a very different healthcare experience next year.
Do Not Assume Your PPO Is Becoming an HMO
One prediction deserves particular caution: the idea that Medicare Advantage is broadly abandoning PPOs in favor of HMOs. Individual insurers may certainly replace a PPO with an HMO in a specific market because tighter networks can provide greater control over healthcare costs, but the national trend over the past decade has actually moved in the opposite direction.
HMOs represented about 57% of Medicare Advantage plans available in 2026, down from 71% in 2017. Local PPOs increased from roughly 24% to 42% of available plans during the same period. That does not guarantee PPO growth will continue, particularly while insurers are tightening costs, but it demonstrates why beneficiaries should avoid assuming every carrier will make the same strategic decision.
What matters is what happens to the particular plan in a beneficiary’s county. A PPO could disappear while the insurer retains only an HMO, or an HMO might be replaced by another network configuration. The relevant questions are whether existing doctors remain in network, how out-of-network care is treated and whether referral or prior-authorization requirements change.
This is also why the insurance company’s name provides insufficient information. Keeping the same carrier does not guarantee keeping the same network, copayments or benefit structure. Medicare coverage has to be evaluated at the specific plan level every year.
There Is a Big Difference Between a Plan Change and a Plan Termination
A plan can continue into 2027 but change its premium, deductible, drug formulary, provider network or supplemental benefits. When that happens, beneficiaries generally remain enrolled automatically unless they choose another plan during an applicable enrollment period. Medicare requires plans to send an Annual Notice of Change each fall explaining changes that take effect in January.
A non-renewal is different. If a Medicare Advantage or drug plan is leaving Medicare for the coming year, beneficiaries receive a Plan Non-Renewal Notice telling them they need to obtain new coverage. Medicare says those notices generally arrive in October, while CMS may also send additional reminders in November in applicable situations.
Plan consolidation creates a third possibility. An insurer can discontinue one product while CMS permits beneficiaries to be crosswalked into another sufficiently similar plan from the same organization. The beneficiary then has coverage for the new year without completing a new enrollment, but that does not mean the replacement plan should be accepted without review.
A crosswalk can still involve different premiums, copays, drug coverage or provider arrangements. Someone who sees the same insurance logo on the new identification card may incorrectly assume nothing meaningful changed. The safer approach is to treat any automatic reassignment as a new insurance decision and examine it accordingly.
The Annual Notice of Change Is the Most Important Medicare Mail You May Receive
Medicare requires plans to provide an Annual Notice of Change explaining changes in coverage, costs and other important features for the following year. Medicare says beneficiaries should receive the ANOC in September, and Medicare Advantage guidance specifies that it should be sent by September 30.
The document should not be skimmed only for the premium. Beneficiaries should compare hospital and physician copays, maximum out-of-pocket limits, prescription deductibles, drug tiers and supplemental benefits with the current year’s coverage. A $0 premium can remain $0 while the financial risk elsewhere in the plan becomes materially larger.
Provider access deserves a separate review because networks can change independently of the plan premium. A beneficiary receiving ongoing cancer, cardiac or orthopedic care should verify the actual physicians and hospitals rather than relying solely on last year’s network information. Medicare’s Evidence of Coverage provides more detailed information about how the plan operates, but the ANOC provides the first warning that something significant is changing.
Prescription drugs should also be checked individually. A medication can move to a different tier, require prior authorization or leave the formulary even when the rest of the Medicare Advantage plan remains available. The right question is not whether the drug plan still exists, but whether it still covers the drugs the beneficiary expects to take at an acceptable cost.
Part D’s $2,000 Cap Is Becoming $2,400 in 2027
The Part D redesign has produced one especially important change that can easily be misunderstood. The annual out-of-pocket threshold was capped at $2,000 in 2025 and increased to $2,100 for 2026 because the amount is indexed. For 2027, CMS has finalized an annual out-of-pocket threshold of $2,400 and a standard deductible of $700, up from $615 in 2026.
The increase does not mean the Inflation Reduction Act’s protection has been repealed. The law established the lower catastrophic threshold and then allowed it to adjust under a statutory formula tied to Part D drug expenditures. Once beneficiaries reach the applicable $2,400 threshold for covered Part D drugs in 2027, they generally owe no additional cost sharing in the catastrophic phase under the redesigned benefit.
The old coverage gap, commonly called the donut hole, is also gone. It was eliminated beginning in 2025, leaving a simplified benefit structure consisting of the deductible phase, initial coverage and catastrophic coverage. Covered insulin also continues to receive special cost-sharing protection, with the monthly amount determined under statutory limits rather than simply subjecting insulin users to the standard deductible.
These federal protections do not make every drug plan equivalent. Formularies, premiums, deductibles, preferred pharmacies and tier placement can still differ substantially. A beneficiary taking expensive medications should therefore compare expected annual costs rather than assuming the federal cap makes the plan selection unimportant.
Losing Medicare Advantage Can Create a Valuable Medigap Right
One of the most important consequences of a Medicare Advantage termination is often overlooked. Under federal law, someone whose Medicare Advantage plan leaves Medicare, stops providing care in the area or otherwise creates a qualifying loss of coverage can have a guaranteed-issue right to purchase certain Medigap policies when returning to Original Medicare.
That right can be particularly valuable for someone who has been enrolled in Medicare Advantage for years and has since developed significant health problems. Outside the original six-month Medigap Open Enrollment Period and other protected circumstances, federal law generally does not guarantee the ability to switch to a Medigap policy without medical underwriting. A qualifying plan termination can therefore temporarily reopen a door that otherwise might be difficult to enter.
The protection does not mean that every beneficiary whose plan changes can buy every Medigap plan from every carrier. Federal guaranteed-issue rights apply to specified standardized policies, while individual states may provide additional protections beyond the federal minimum. The beneficiary also has to switch to Original Medicare rather than simply enroll in another Medicare Advantage plan to use the relevant Medigap right.
This is why someone receiving a termination notice should not automatically pick the closest replacement Advantage plan. The termination may create a rare opportunity to reconsider whether Original Medicare plus Medigap now makes more sense, particularly if provider access has become more important since the original Medicare decision.
Open Enrollment Does Not Guarantee Medigap Acceptance
Another common misunderstanding is that Medicare’s fall Open Enrollment Period allows beneficiaries to move freely between Medicare Advantage and Medigap. From October 15 through December 7, beneficiaries can change Medicare Advantage plans, move from Advantage back to Original Medicare or make Part D changes for the upcoming year. Returning to Original Medicare, however, does not itself guarantee that a Medigap insurer must accept the applicant.
Medicare states that most people do not have a federal right to switch Medigap policies outside the initial six-month enrollment period unless a specific guaranteed-issue circumstance applies. Someone voluntarily leaving a perfectly functioning Medicare Advantage plan after many years may therefore face medical underwriting when seeking Medigap in many states.
A plan termination can change that result because federal protections can apply when Medicare Advantage coverage ends involuntarily. That makes the wording of the insurer’s notice extremely important. Beneficiaries should preserve termination letters and other documentation because the Medigap company may need evidence establishing the guaranteed-issue right.
Nobody should cancel Medicare Advantage first and begin investigating Medigap afterward. The better sequence is to confirm the right, determine which Medigap products are available and coordinate effective dates before existing coverage disappears.
Do Not Choose the Replacement Based on Dental and Gym Benefits
Supplemental benefits helped fuel competition during Medicare Advantage’s expansion. Plans advertised dental allowances, hearing benefits, vision coverage, transportation, fitness memberships and other extras to distinguish themselves in counties where beneficiaries sometimes had dozens of options.
Those benefits can be useful, but they belong lower on the priority list than healthcare access. A richer dental allowance means little to someone whose cardiologist or cancer center is no longer participating. Similarly, a grocery benefit should not compensate for dramatically higher hospital copays or a maximum out-of-pocket exposure the beneficiary cannot comfortably absorb.
The first comparison should therefore involve doctors, hospitals and medications. The second should involve expected medical cost sharing, premiums and the annual maximum out-of-pocket amount. Supplemental perks should be evaluated only after the core health insurance works.
This becomes even more important during a year of plan retrenchment because insurers under cost pressure can reduce generosity without eliminating a product altogether. A plan that survives into 2027 may still place more financial responsibility on the enrollee than it did in 2026.
A Plan Termination Does Not Usually Leave You With No Medicare
Beneficiaries receiving a termination notice understandably worry that they will suddenly be uninsured on January 1. Medicare’s rules provide protections intended to prevent that outcome.
When a Medicare Advantage plan’s contract is not renewed, beneficiaries receive a Special Enrollment Period to choose another plan. Medicare says this opportunity generally runs from December 8 through the last day of February of the following year in the non-renewal situation described in its current Special Enrollment Period guidance. If an Advantage plan ends and the beneficiary does not join another Medicare Advantage plan before coverage terminates, the person generally returns to Original Medicare.
That fallback provides Part A and Part B coverage, but it should not be mistaken for a complete replacement of an MA-PD plan. Original Medicare does not ordinarily include outpatient prescription drug coverage, and it does not have the same type of annual out-of-pocket maximum provided by Medicare Advantage. Someone returning to Original Medicare may therefore also need a stand-alone Part D plan and may want Medigap if eligible.
People receiving Extra Help can face additional reassignment rules. Medicare may automatically place some beneficiaries whose drug coverage terminates into another prescription plan, but Medicare specifically encourages them to compare alternatives rather than assuming the assigned plan will provide the best coverage for their medications.
2027 Is Not Yet a Reason to Panic
The recent Medicare Advantage contraction is real, but claims that the entire market is collapsing go too far. More than half of eligible beneficiaries continue to choose Medicare Advantage, and CMS’ 2027 payment announcement projects an increase in federal payments to plans rather than a wholesale withdrawal of support.
The 2026 experience also provides perspective. Roughly 2.6 million beneficiaries were affected by MA-PD terminations, yet 98.9% of those beneficiaries still had at least one Medicare Advantage drug plan available for 2026, and the average affected beneficiary had about 25 MA-PD alternatives. Plan termination created significant inconvenience and potential disruption, but it generally did not mean the local Medicare Advantage market disappeared.
The problem is distribution. Rural areas and counties with limited competition can be hit much harder than metropolitan areas with dozens of offerings. A national average can therefore look reassuring while an individual beneficiary discovers that the one PPO containing the preferred regional hospital is gone.
That is why the 2027 story will ultimately be local. National insurer announcements matter, but a Medicare beneficiary’s ZIP code, doctors and prescriptions determine whether the changes are merely administrative or life-altering.
What Beneficiaries Should Do This Fall
The first step is simply opening the mail. Review the Annual Notice of Change when it arrives in September, and pay particular attention to any separate notice stating that the plan will not be renewed. Medicare advises beneficiaries who do not receive their ANOC to contact the plan rather than assuming nothing changed.
Next, rebuild the comparison from the ground up. Verify every important physician and hospital directly with the new plan, enter current prescriptions into Medicare’s Plan Finder and compare premiums, copayments, deductibles and maximum out-of-pocket limits. Someone whose current plan is terminating should also determine whether the situation creates a Medigap guaranteed-issue right before selecting another Medicare Advantage plan.
Finally, separate coverage from marketing. Dental benefits, fitness programs and other extras can be valuable, but the fundamental purpose of Medicare insurance is protecting access to medically necessary treatment and limiting financial exposure when health deteriorates. A plan that performs well during a healthy year is not necessarily the plan someone wants during a year involving surgery, cancer treatment or repeated hospitalization.
The biggest Medicare mistake in 2027 may be assuming that because the insurance card looks familiar, the insurance has stayed the same. The Medicare Advantage market is not disappearing, but it is becoming more selective as insurers respond to medical costs, payment changes and the redesigned Part D benefit. That means beneficiaries need to become more selective too.
A plan can renew and still become materially worse. It can disappear and unexpectedly create a valuable opportunity to move into different coverage. The people best prepared for 2027 will not be those who automatically chase the lowest premium or richest perks, but those who understand exactly what is changing before January 1 arrives.
