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Best Medicare Advantage Plans

Medicare Advantage (MA) is a private alternative to Original Medicare. It has extra benefits like dental and vision, but you often must use in-network providers and get prior authorization, which could delay care.

UnitedHealthcare has the best Medicare Advantage plans overall, according to our in-depth research, but other companies also caught our notice, such as Cigna for low costs and Kaiser for customer satisfaction. To choose the best Medicare Advantage companies, we evaluated nine major health insurance companies for 22 criteria that fall into categories including plan and care quality, cost, and state availability. 

Best Medicare Advantage Plans

Best Overall : AARP/UnitedHealthcare

Investopedia's Rating
4.7

United Healthcare

United Healthcare

Pros & Cons
Pros
  • Available in most states and Washington D.C.

  • Largest provider network nationwide

  • Free home visits

  • $0 copays for primary care provider (PCP), specialist, and lab charges

Cons
  • Below-average J.D. Power score in some regions

Why We Chose It

AARP's UnitedHealthcare (UHC) plans feature high Medicare star ratings, the largest provider network of all MA plan providers, and a broad array of options.

Overview

UnitedHealthcare (UHC) is the largest provider of Medicare Advantage plans, and boasts the largest network of health care providers. UnitedHealthcare’s MA plans—co-branded with AARP—earn high marks for plan quality and member experience. 

On average, UHC Medicare Advantage plans with drug coverage have a 3.94 Medicare star rating (out of a possible 5), which is on par with the national average of 3.94. 

The National Committee for Quality Assurance (NCQA), an independent organization that measures health plan quality and patient satisfaction, gives UHC MA plans a 3.8-star average rating, putting UHC about third in the list of companies we evaluated. Both NCQA and Medicare score on a five-star scale.

While UnitedHealthcare scored well in the J.D. Power 2023 Medicare Advantage Study for Florida and Texas, it scored below average in California, Pennsylvania, and New York. 

The company offers a range of plan types, including HMO, PPO, and PFFS (private-fee-for-service) plans. Coverage is available for: 

  • Vision, hearing, and dental care
  • Non-emergency transportation for Medicare-Medicaid recipients
  • Worldwide emergencies
  • No-cost in-home care visits

UHC outperforms its peers in key metrics, but the average out-of-pocket expense is $5,579 in 2024. This amount is higher than some competitors’ but lower than the average across major insurers.

Read more in our UnitedHealthcare Medicare review.

Note

UnitedHealthcare Group is being sued for allegedly using a flawed artificial intelligence algorithm that denies rehabilitation care for Medicare Advantage patients, despite knowing that the algorithm has a 90% error rate.

Lowest Cost : Cigna

Investopedia's Rating
4.0

Cigna

Cigna

Pros & Cons
Pros
  • Lowest overall-cost plans compared other largest providers

  • Lowest average premium compared to the largest providers

Cons
  • No PFFS plans

Why We Chose It

Cigna Medicare Advantage plans are the cheapest nationwide of all major insurers offering Medicare Advantage plans.

Overview

Cigna has the lowest-cost Medicare Advantage plans when considering premiums, deductibles, and maximum out-of-pocket cost limits across all plans. 

In particular, Cigna has the lowest average premium, at $6.81 per month, and the second-lowest average drug deductible, at $23.96 (Kaiser has the lowest). 

However, Cigna’s plans are only available in 26 states. And the provider’s average Medicare star rating is 3.66, below the national average of 3.94. 

Learn more in our Cigna Medicare review.

Great for Nationwide Coverage : Humana

Investopedia's Rating
4.1

Humana

Humana

Pros & Cons
Pros
  • Available in 49 states

  • Benefits for over-the-counter drugs

  • Wide plan type range available

  • Good Medicare star rating

Cons
  • Not available in Alaska

  • Pharmacy network may be limited in some areas

Why We Chose It

Humana is the second-largest Medicare Advantage provider in the country and is available in most states.

Overview

Humana is the second-largest provider of Medicare Advantage plans nationwide, with plans in 49 states. Alaska is the sole exception. Depending on where you live, HMO, PPO, and private fee-for-service (PFFS) plans may be available. 

Humana has a limited number of preferred cost-share pharmacies in urban areas of 25 states and suburban areas of 14 states. These are key to saving money on medications. Since access to cost-share pharmacies varies quite a bit, ensure there’s one convenient to you before signing up.  

Read more in our Humana Medicare review.

Note

Humana was also being sued for using artificial intelligence to deny rehabilitation care, despite allegedly knowing the AI model's estimations were often "highly inaccurate" and it used "rigid and unrealistic predictions for recovery" to override doctor recommendations. It settled that case for $90 million in August 2024.

Best for Quality and Customer Satisfaction : Kaiser Permanente

Investopedia's Rating
4.0

Kaiser Permanente

Kaiser Permanente

Pros & Cons
Pros
  • Highest average NCQA rating of the major providers

  • Highest Medicare star rating of the major providers

  • Lowest deductibles, on average, compared to all other major providers

Cons
  • Only available in 8 states and D.C.

  • Only offers HMO plans

Why We Chose It

Kaiser Permanente stands out for its excellent plan quality and customer satisfaction. It has the highest star ratings from Medicare the NCQA of the providers we reviewed.

Overview

Kaiser Permanente isn’t available in many states, but where it is available, third parties rate it highly. Kaiser’s average Medicare star rating, which measures plan quality, is 4.77 out of 5. Its NCQA rating, which reflects quality and customer satisfaction, is 4.5 out of 5 stars, making Kaiser Permanente the highest-rated company we reviewed in both of those categories. 

Not only that, but compared to the other largest players, Kaiser Permanente’s drug deductibles are the lowest nationwide—only $3, on average. 

The company keeps member costs low because it only offers HMO plans for Medicare Advantage coverage. You’ll need to stay strictly in-network.

You must reside in California, Colorado, Georgia, Hawaii, Maryland, Oregon, Virginia, Washington state, or the District of Columbia to be eligible for coverage.

Read more in our Kaiser Permanente Medicare review.

Bottom Line

AARP/UnitedHealthcare is our pick for the top Medicare Advantage provider. It boasts the largest provider network nationwide, has excellent customer satisfaction ratings, and offers a lot of choice.

To choose the best Medicare Advantage company, consider what you need from a plan. Are you comfortable with an HMO, or do you require additional flexibility? For instance, if you want a PFFS plan, there are a few providers to consider, including UnitedHealthcare and Humana. 

If cost is your primary concern, consider Cigna. But beware that its Medicare star rating—an important indicator of quality—is below average. Or would you rather pay more monthly for a higher level of quality and customer satisfaction? Check out UHC's AARP plans, or Kaiser, if they're available in your area. 

Do you want a plan with drug coverage? If so, how much do you expect to spend on prescription drugs, and which specific drugs do you use? Medicare.gov’s plan finder lets you input the drugs you use when comparing plans to see which provides the best coverage.

Individual Medicare Advantage plans have their own Medicare star ratings—we looked at national company averages. So, even if you choose a top-ranked company like UnitedHealthcare, ensure the specific MA plan you’re interested in has a rating you’re comfortable with. That information is also available in the plan finder tool.

Research Insight

"Aside from an overall star rating, the Centers for Medicare and Medicaid Services (CMS) also publishes scores for specific subcategories, such as how well a plan helps manage chronic conditions, gives access to tests and screenings, and whether the insurer makes decisions on claims in a timely fashion. Considering these star ratings alongside out-of-pocket costs can ensure that you find coverage that matches your expectations. You can see a plan's star rating using the Medicare Plan Finder tool on Medicare.gov."

Shanker Narayan, Investopedia Research Analyst

What Is Medicare Advantage?

Medicare Advantage (MA), also known as Medicare Part C, is a program in which private insurers offer coverage as an alternative to government-provided Medicare. MA providers must be approved by Medicare and must offer most of the same coverage as Medicare parts A and B. They also usually offer prescription drug coverage and other benefits such as:

  • Preventive dental care coverage
  • Basic vision care coverage
  • Basic hearing coverage
  • Gym memberships
  • Transportation to and from appointments
  • Over-the-counter drugs

Pros and Cons of Medicare Advantage

Pros

  • Low or no premiums: MA providers are paid by Medicare to administer the plans, so most (73%) don't charge enrollees premiums, though customers are still required to pay their Part B premium unless the MA plan also covers that.
  • Out-of-pocket maximums: MA plans must limit the amount you pay out of pocket each year. For 2024, the maximum must be $8,850. Some plans have lower limits. Original Medicare doesn't have out-of-pocket maximums.
  • Extra benefits: Many plans provide services that Original Medicare doesn't, such as vision, hearing, or dental coverage. Some also cover gym memberships or transportation to doctor visits.

Cons

  • Fewer choices of health care providers: Medicare Advantage plans have networks of providers and you either can't visit and out-of-network doctor (if you have an HMO) or you'll pay more to do so (with a PPO). In contrast, you can use any doctor with Original Medicare.
  • No Medigap coverage allowed: You can't use a Medicare Supplement (Medigap) plan to cover out-of-pocket costs like coinsurance and copays. That may not matter if you're 65 and relatively healthy. But as you age, you tend to need more expensive care. And while MA plans will cover 100% of your care after you meet your out-of-pocket maximum, that maximum may still be high enough that over the years, you'll pay more for coverage than you would if you stayed with Original Medicare and got a Medigap plan.
  • Preauthorization requirements: Unlike regular Medicare, 99% of Medicare Advantage plans require advance authorization for care, which can delay treatment. A government report also found that some MA providers wrongfully deny coverage. About 13% of denials met Medicare rules and should have been approved.
  • Geographic coverage limitations: Medicare Advantage coverage is limited to the plan’s service area, which means your plan may not cover you while traveling (except for emergency care). If you travel a lot or have homes in different states, this is something to consider.

Changes Coming to Medicare in 2025

This year will bring some of the biggest changes to Medicare in a generation. Look out for:

  • The elimination of the Medicare “donut hole” for drug coverage
  • A $2,000 limit on how much you’ll have to pay out of pocket for covered prescription drugs with Part D plans
  • An optional payment plan that spreads out your medication costs
  • Likely pricing and coverage alterations to Medicare Advantage and Part D plans as insurers adjust to sharing more of the costs due to changes listed above
  • A requirement that insurers send Medicare Advantage beneficiaries a letter in the middle of 2025 about unused benefits, which is intended to make sure plans deliver the perks they’ve used to entice people to sign up. 

Important

If you already have a Medicare Advantage plan you should have gotten an annual notice of change letter in September stating exactly how your plan will be changing in 2025. Same goes for people enrolled in standalone Part D plans. Carefully review any changes regarding the formulary, costs, networks, or benefits, and be ready to switch plans during open enrollment, which runs from Oct. 15 through Dec. 7.

How to Choose a Medicare Advantage Plan

All MA plans must offer the same standard coverage as Original Medicare (Part A hospital insurance and Part B medical insurance). And many don't charge any premiums or deductibles. But there are other differences between plans.

Think About Plan Type

Would you prefer an HMO or a PPO? An HMO may be cheaper but require you to choose from a smaller group of health care providers and get referrals to see specialists. PPOs allow you to see out-of-network doctors and don't require referrals.

Compare Provider Networks

If you have doctors that you see now and don't want to switch, see if they are included in the provider network of any plan you're considering.

Examine Costs

Although you probably won't have to pay a premium, Medicare Advantage plans do include copays, which are fees you pay out of pocket when you receive care. Plans have out-of-pocket maximums, so be sure to examine these limits on your costs. The lower the out-of-pocket maximum, the better.

Check for Your Medicines

Look for any medications you currently take on the plan's formulary (the list of drugs covered by the plan) to see whether yours would be covered. And don't forget to look at medication copays, too.

Look at Plan Star Ratings

The government examines MA plans for their quality and customer satisfaction, and then assigns each a Medicare Star Rating. The ratings range from one star to five stars, with one star representing the lowest score.

When Will 2025 Medicare Advantage Plans Be Available?

On Oct. 1, insurers will release their 2025 plan information on the Medicare.gov website. You can join or change plans during Medicare open enrollment, which runs from Oct. 15 to Dec. 7 every year. Coverage begins Jan. 1 of the following year. If you already have an MA plan you can make one switch to a different plan or back to Original Medicare during Medicare Advantage open enrollment. That runs from Jan. 1 to March 31.

Frequently Asked Questions

  • What Is the Medicare Donut Hole or Coverage Gap?

    The Medicare coverage gap or "donut hole" refers to a period when there is a limit on prescription drug coverage. It begins once you have spent up to a certain limit ($5,030 in 2024) on covered drugs. This is called the initial phase. After that, Medicare asks you to be responsible for up to 25% of drug costs until you've spent $8,000 on covered drugs. Once you've hit $8,000, the gap ends and the catastrophic phase of coverage begins.

    The coverage gap will be eliminated in 2025. Initial coverage for Part D will extend to the maximum out-of-pocket threshold, at which point catastrophic coverage begins.

  • What Is the Highest-Rated Medicare Advantage Plan?

    Kaiser Permanente’s 2023 Medicare Advantage plans receive 5 stars from the Centers for Medicare and Medicaid Services (CMS) in California, Colorado, Georgia, Hawaii, and Mid-Atlantic states (Maryland, Virginia, and Washington, D.C.). The CMS ranks Medicare Advantage and prescription drug plans from 1 to 5 stars, with 5 stars being the highest or best rating. A plan’s star rating reflects its performance based on enrolled people’s experiences.

  • What Is the Biggest Disadvantage of Medicare Advantage?

    A primary Medicare Advantage plan drawback is that these plans typically require you to use dedicated networks, such as an HMO or PPO. As a result, geographic coverage and provider choice is limited. Original Medicare doesn’t restrict you to a network; you can choose any provider accepting Medicare.

  • Can I Drop My Medicare Advantage Plan and Go Back to Original Medicare?

    Yes, you can switch back to Original Medicare during the annual Medicare Open Enrollment period from Oct. 15 to Dec. 7. Your Original Medicare coverage will go into effect on Jan. 1. Or, you can switch during Medicare Advantage Open Enrollment from Jan. 1 to March 31. Your new coverage becomes effective on the first day of the month after joining the plan.

How We Chose the Best Medicare Advantage Providers

To identify which Medicare insurance companies to review, we analyzed business and market insight databases including Statistia, Plunkett, and Gale. We also considered user-generated data from Google to determine public interest and trends in Medicare plans.

We collected data from third-party rating agencies like the credit rating agency AM Best and the National Committee for Quality Assurance (NCQA), an independent organization that rates health insurance plans on quality and customer satisfaction. We also gathered data from government websites and databases provided by the Centers for Medicare and Medicaid Services (CMS) such as CMS.gov and HealthCare.gov, and directly from companies via websites, media contacts, and existing partnerships. The data collection process spanned Sept. 15 to Sept. 29, 2023.

We then developed a quantitative model that scores each Medicare Advantage provider based on four major categories and 22 criteria that are crucial in evaluating the company's offerings and benefits.

We weighted the four categories as follows for this article:

  • Plan features: 35%
  • Plan quality and customer satisfaction: 30%
  • Cost: 20%
  • Availability: 15%

Read our full methodology for reviewing Medicare insurance providers.

Medicare Advantage Plans
Research and analysis by Shanker Narayan
Article Sources
Investopedia requires writers to use primary sources to support their work. These include white papers, government data, original reporting, and interviews with industry experts. We also reference original research from other reputable publishers where appropriate. You can learn more about the standards we follow in producing accurate, unbiased content in our editorial policy.
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  2. J.D. Power. “For Medicare Advantage Plans, Trust and Problem Resolution Closely Associated With Likelihood to Renew, J.D. Power Finds.”

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