UnitedHealthcare and Humana Restructure Medicare Advantage Participation for 2027: What Providers and Patients Need to Know

The Medicare Advantage landscape is changing again for 2027. Two of the nation’s largest Medicare Advantage insurers, UnitedHealthcare and Humana, are reducing their participation in certain markets, discontinuing selected plans and making other changes to their Medicare Advantage offerings.

These changes do not mean that UnitedHealthcare or Humana are leaving Medicare Advantage altogether. Instead, both organizations are taking a more targeted approach to where and how they offer plans. The impact will vary significantly by state, county and individual plan. [benefitsusa.org], [uhcprovider.com]

For physician practices, billing teams and Medicare beneficiaries, the changes make 2027 eligibility and network verification especially important.

What Is Changing with UnitedHealthcare?

Effective January 1, 2027, UnitedHealthcare has confirmed it is reducing certain Medicare Advantage service areas and discontinuing some plans. The affected plans and service areas vary by state and county. [uhcprovider.com], [uhcprovider.com]

Approximately 390,000 UnitedHealthcare members have been reported as being enrolled in plans that will not continue for 2027. [rollingout.com], [benefitsusa.org]

One important point for healthcare providers is that a plan being discontinued does not automatically terminate a provider's overall UnitedHealthcare Medicare Advantage Participation Agreement. UnitedHealthcare specifically states that participating providers' agreements remain applicable because the company will continue offering network-based Medicare Advantage plans. [uhcprovider.com]

However, that does not mean every patient will still have access to the same plan or network in 2027.

What Is Changing with Humana?

Humana is also reducing its Medicare Advantage footprint for 2027. Reports indicate that its plan exits will affect approximately 600,000 members nationwide. Humana is expected to continue offering Medicare Advantage coverage broadly, with plans available in roughly 2,600 counties. [benefitsusa.org], [medicaldaily.com]

The restructuring is targeted rather than a wholesale withdrawal from Medicare Advantage. That distinction is important for both patients and providers.

A patient who has Humana Medicare Advantage today should not assume that their current plan, benefits or provider network will remain exactly the same in 2027.

Why Are Medicare Advantage Carriers Restructuring?

The changes are part of a broader adjustment taking place across the Medicare Advantage market.

Insurers have cited pressures that include:

• Rising medical utilization

• Increasing medical and prescription drug costs

• Changes in Medicare Advantage reimbursement

• Plan profitability

• Greater focus on sustainable markets and plan designs

UnitedHealthcare has specifically cited funding pressures, rising medical and drug costs, and increased healthcare utilization as factors affecting the Medicare Advantage environment. [rollingout.com]

The pullback extends beyond UnitedHealthcare and Humana. Other insurers are also reducing Medicare Advantage offerings in certain geographic areas for 2027. [consumeraffairs.com]

What Does This Mean for Healthcare Providers?

For medical practices, these changes should be viewed as more than an insurance enrollment issue.

They can have a direct impact on the revenue cycle.

A patient who was in-network in December 2026 may have different coverage beginning January 1, 2027. Practices should not assume that prior participation automatically guarantees coverage under a patient's new Medicare Advantage plan.

Before providing services in 2027, practices should verify:

1. Eligibility

Confirm that the patient's Medicare Advantage coverage is active for the date of service.

2. The exact plan

Do not verify the carrier alone. Identify the patient's specific plan and product.

3. Provider network participation

Confirm that the physician, group and facility are participating with the patient's specific 2027 plan.

4. Referral requirements

HMO and other Medicare Advantage products may require PCP referrals for certain specialist services.

5. Prior authorization

Authorization requirements may differ when a patient's plan changes, even when the insurance company remains the same.

6. Patient cost-sharing

Deductibles, copayments, coinsurance and other member responsibilities should be reverified for the new benefit year.

Humana, for example, directs members to its plan-specific provider directories and notes that referral, authorization and out-of-network requirements can depend on the member's plan. [findcare.humana.com]

Don't Rely on the Insurance Card Alone

One of the biggest operational risks for practices occurs when a patient says:

"I still have UnitedHealthcare."

or

"My insurance is still Humana."

That information alone is not enough to establish network participation or benefits.

The carrier may be the same while the underlying Medicare Advantage plan has changed.

For 2027, front-office and eligibility teams should capture the patient's new Medicare Advantage ID card and perform a fresh eligibility and benefits verification rather than simply carrying forward the patient's 2026 insurance information.

This can help prevent:

• Eligibility denials

• Out-of-network claims

• Authorization denials

• Incorrect patient estimates

• Unexpected patient balances

• Delays in reimbursement

What Should Medicare Advantage Patients Do?

Patients should carefully review any Annual Notice of Change or non-renewal correspondence they receive from their Medicare Advantage carrier.

UnitedHealthcare has stated that affected members are receiving non-renewal notices regarding plans that will not be offered in their county for 2027. [uhcprovider.com]

The Medicare Annual Enrollment Period runs October 15 through December 7, making this an important time for beneficiaries to compare their 2027 options. [consumeraffairs.com]

Patients considering another Medicare Advantage plan should verify three things before enrolling:

Are my doctors participating?

Is my preferred hospital participating?

Are my medications covered under the plan's 2027 formulary?

Premiums and supplemental benefits are important, but provider access and medication coverage can have a much greater financial impact during the year.

A Critical Reminder for Physician Practices

The beginning of every year traditionally creates eligibility and benefits challenges, but the 2027 Medicare Advantage restructuring makes January eligibility verification particularly important.

Practices should consider placing extra emphasis on Medicare Advantage verification during December and January and educating scheduling and front-desk staff not to assume a patient's 2026 coverage remains unchanged.

A simple workflow can help:

Patient schedules appointment → Obtain 2027 insurance information → Verify eligibility → Confirm exact plan → Verify provider network → Check referral/authorization requirements → Inform patient of estimated responsibility.

This relatively small front-end investment can prevent much larger problems on the back end.

The Bottom Line

UnitedHealthcare and Humana are not abandoning Medicare Advantage in 2027. Both carriers will continue participating in the program, but they are reducing certain service areas and discontinuing selected plans as they reshape their Medicare Advantage businesses. [benefitsusa.org], [uhcprovider.com]

For patients, that means reviewing 2027 coverage carefully.

For healthcare providers, it means do not assume that 2026 eligibility, network status or authorization requirements will carry over into 2027.

With enrollment changes approaching January 1, proactive verification will be one of the most important tools practices can use to protect both their patients and their revenue cycle.