
Medicare Advantage plans are offered by private insurance companies and are a popular form of health insurance for US adults aged 65 and above. The average beneficiary has around 40 or more plans to choose from, which can make the process of choosing the right plan confusing and overwhelming. Some of the top Medicare Advantage insurers include UnitedHealthcare, Aetna, Humana, Cigna, and Devoted. Factors to consider when choosing a plan include total cost, prescription drug coverage, and the network of health providers.
| Characteristics | Values |
|---|---|
| Top Medicare Advantage providers | Humana, Aetna, Devoted, UnitedHealthcare |
| Top Medicare Supplement/Medigap providers | AARP/UnitedHealthcare, Anthem, State Farm, Blue Cross Blue Shield |
| Medicare Advantage availability | 49 states and Washington, D.C. |
| Medicare Advantage cost | $2,000 cap on out-of-pocket costs for prescription drugs |
| Medicare Supplement/Medigap cost | Varies by provider, plan, and enrollee age |
| Medicare Advantage network size | UnitedHealthcare is the largest provider |
| Medicare Supplement/Medigap network size | Blue Cross Blue Shield has the largest network |
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What You'll Learn

Top Medicare Supplement Insurance (Medigap) providers
Medicare Supplement Insurance, also known as Medigap, is a type of health insurance sold by private companies to cover costs not covered by Original Medicare. Original Medicare consists of Part A, which covers hospital insurance, and Part B, which covers medical insurance. Medigap plans cover costs such as deductibles, coinsurance, and copayments.
When choosing a Medigap plan, it is important to consider the company's reputation, plan availability in your state, plan types offered, discounts, complaint rates, premiums, and additional coverage options. Here are some of the top Medicare Supplement Insurance (Medigap) providers:
AARP/UnitedHealthcare
UnitedHealthcare is one of the largest insurance companies in the world and offers 9 out of 10 standardized Medigap plans in most states. They have low complaint rates and offer plans through a partnership with AARP, making them a trusted source of coverage for older adults.
Mutual of Omaha
Mutual of Omaha offers nationwide coverage for a wide variety of Medicare Supplement plans, including high-deductible options and low-premium plans. They offer 3 popular Medigap plans: Plan F, Plan G, and Plan N, which together account for 85% of all Medigap enrollment. Mutual of Omaha also claims a standard response time of within 24 hours for 99% of claims filed.
State Farm
State Farm is known for its high member satisfaction ratings and offers Medicare Supplement Insurance plans in various states. They provide reliable coverage and have a strong presence in the Medicare market.
Wellabe
Wellabe offers different types of Medigap plans in different states and provides various discounts depending on the state. They also offer additional insurance products such as short-term care insurance and hospital indemnity insurance.
Anthem Blue Cross Blue Shield
Anthem Blue Cross Blue Shield is one of the nation's largest health insurers and offers Medicare Supplement plans in multiple states under various brand names. Their plans are accepted by any doctor, hospital, and provider who accepts Medicare, providing flexibility and a wide range of choices for their customers.
Humana
Humana is one of the largest health insurance providers in the US and provides Medicare Supplement plans in most states, including Washington, D.C. They offer 10 types of Medigap plans and have received high rankings from the Centers for Medicare & Medicaid Services (CMS).
These companies stand out for their plan availability, member satisfaction, pricing, and additional benefits. When choosing a Medigap provider, it is important to consider your specific needs, budget, and location to find the plan that best suits your requirements.
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Medicare Advantage plans
In 2025, there are several top-rated Medicare Advantage plans and providers. UnitedHealthcare is the largest provider of Medicare Advantage plans and partners with AARP. Devoted Health is also rated highly, with a score of 4.2 out of 5 stars, and offers plans in 20 states. Aetna is another top insurer, with plans available in 44 states.
When choosing a Medicare Advantage plan, it is important to consider total costs, including copays, coinsurance, and deductibles. Additionally, the prescription drug coverage offered and the network of health providers available are key factors in selecting a plan.
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Original Medicare
There are some gaps in Original Medicare coverage. For example, Part B covers only 80% of medical expenses, with no out-of-pocket maximum, and Part A only covers the first 60 days in the hospital, meaning co-insurance must be paid after this period. Due to these gaps, many beneficiaries choose to enrol in either a Medicare Advantage plan or a supplemental policy.
Medicare Advantage, or Part C, is offered by private health insurance companies that contract with the federal government. These plans cover at least the same benefits as Original Medicare but have additional costs and benefits, such as hearing and vision health.
Supplemental coverage, or Medigap, is extra insurance that can be purchased from a private company to help pay your share of costs in Original Medicare. Generally, you need Part A and Part B to buy a Medigap policy, and some policies offer coverage when travelling outside the US. Medigap policies do not usually cover long-term care, vision, dental, hearing aids, private nursing, or prescription drugs.
If you wish to add drug coverage to Original Medicare, you can join a separate Medicare drug plan. This is optional and available to everyone with Medicare, but most Medicare Advantage plans include Part D coverage.
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Medicare Part C
Medicare Advantage Plans may offer extra coverage, such as vision, hearing, dental, and/or health and wellness programs. Most include Medicare prescription drug coverage (Part D). Medicare pays a fixed amount every month to the companies offering Medicare Advantage Plans, and these companies must follow rules set by Medicare. However, each Medicare Advantage Plan can charge different out-of-pocket costs and have different rules for how you get services. For example, you may need a referral to see a specialist, or you may have to use only doctors, facilities, or suppliers that belong to the plan for non-emergency care.
When choosing a Medicare Advantage Plan, it is important to consider the total cost of coverage, including copays, coinsurance, and deductibles. Some plans offer extra benefits, such as gym memberships and dental cleanings, that can save you money. It is also essential to consider prescription drug coverage, including medication costs and which pharmacies you can use. The network of health providers is another crucial factor, as the hospitals and doctors you have access to may influence the insurance company and plan you choose.
Some of the top Medicare Advantage Plans for 2025 include those offered by Humana, Devoted, Aetna, and UnitedHealthcare. Humana offers a wide range of plans and benefits and has received high rankings from the Centers for Medicare & Medicaid Services (CMS). Devoted has earned one of the highest scores from U.S. News, with a rating of 4.2 out of 5 stars, and offers plans in 20 states, including Florida, Ohio, and Texas. Aetna offers Medicare Advantage Plans in 44 states, more than any other company on the list. UnitedHealthcare is the largest provider of Medicare Advantage Plans and partners with AARP to insure Medicare products carrying the AARP name.
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Best Medicare Advantage providers
Medicare Advantage plans, also known as Part C, are offered by private health insurance companies that contract with the federal government. These plans cover at least the same benefits as Original Medicare (Part A and Part B) but may also include additional benefits such as hearing, vision, and dental coverage.
When choosing a Medicare Advantage plan, it is important to consider various factors such as the total cost of coverage, prescription drug coverage, and the network of health providers. The best plan for an individual will depend on their specific health needs, budget, location, and other factors.
UnitedHealthcare
UnitedHealthcare is the largest provider of Medicare Advantage plans and partners with AARP, insuring Medicare products that carry the AARP name. They offer a large network of medical providers, including more than 1 million providers, making it easier for individuals to find a doctor or specialist who accepts their insurance. However, member experience ratings are average among major providers.
Humana
Humana is ranked highly by the Centers for Medicare & Medicaid Services (CMS) and is known for the wide availability of its many different plans and benefits. They sold the most Advantage plans in 2024, according to Medical News Today.
Devoted
Devoted earns one of the highest scores from U.S. News, with a rating of 4.2 out of 5 stars. They offer HMO and Preferred Provider Organization (PPO) plans in 20 states, including Florida, Ohio, and Texas. They have also received recognition for their screening and prevention efforts, earning the Best for Screening and Prevention award.
Aetna
Aetna offers Medicare Advantage plans through various subsidiaries, including Aetna Medicare, Aetna Better Health Premier Plan, and MyCare Ohio, among others. Their plans are available in 44 states, which is more than some of the other top-rated providers.
Other notable Medicare Advantage providers include Blue Cross Blue Shield, which includes brands such as Anthem and Highmark, and various other regional and state-level insurers. It is important to research the specific plans offered by these providers and compare factors such as cost, coverage, and customer satisfaction to determine the best plan for your needs.
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Frequently asked questions
The top Medicare insurers vary depending on the type of Medicare plan and the state in which the insurance is being purchased. For example, the top Medicare Advantage insurers include Aetna, Devoted, and Humana, while the top Medicare Supplement (Medigap) insurers include UnitedHealthcare, Anthem, and State Farm.
Medicare Advantage, also known as Part C, is offered by private health insurance companies that contract with the federal government. These plans cover at least the same benefits as Original Medicare (Part A and Part B) but have additional costs and benefits, such as hearing and vision health.
Medigap is extra insurance that can be purchased from a private company to help pay for costs in Original Medicare not covered by Parts A and B. Medigap policies do not usually cover vision, dental, hearing aids, private nursing, or prescription drugs.
Medicare Advantage plans are offered by private insurance companies and are an alternative to Original Medicare, while Medigap plans are supplemental insurance that can be purchased to help cover costs associated with Original Medicare.
When choosing a Medicare Advantage plan, it is important to consider the total cost of coverage, including copays, coinsurance, and deductibles. Other factors to consider include prescription drug coverage, the network of health providers, and any additional benefits offered, such as gym memberships or dental cleanings.








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