What Are the Best Medicare Supplement Insurance Companies?
- These top 10 insurance companies offer Medicare Supplement Insurance (also called Medigap) in most states. Learn about each company and the plans they offer.
Rating Medicare supplement plans and the top 10 Medicare Supplement Insurance companies can be difficult for two reasons.
- First, Medicare Supplement plans – also called Medigap – offer benefits that are standardized in every state except for Massachusetts, Minnesota and Wisconsin. This means each company’s plans pay for the same out-of-pocket Medicare costs as the same types of Medigap plans sold by other companies.
- Second, Medicare Supplement plan prices and plan selection can fluctuate among Medicare supplemental insurance companies and even from one location to the next, so the “top” company in one city or state might be different from the top Medicare Supplement company in another location.
You can compare plans from several different insurance companies online so that you can find the right plan for the best price in your area.
With all that said, we’ve compiled a list below of 10 Medicare Supplement Insurance companies ratings that all meet the following criteria:
- Serve a high number of beneficiaries
- Sell plans in most states
- Offer a diverse selection of plans
Any company that can check all 3 of those boxes should be considered among the top Medigap companies in the U.S. So without further ado, here are the 10 best Supplemental Insurance companies (listed in no particular order).
Mutual of Omaha
| Mutual of Omaha Pros | Mutual of Omaha Cons |
|---|---|
|
User-friendly website to help plan member navigate their benefits and track claims |
Less Medigap plan selection than larger carriers, in some states |
| Strong financial ratings and long history of stability | Currently no mobile apps for plan members |
In some states, members can qualify for a 12% discount on monthly Medicare Supplement insurance premiums if they resided with another adult for the past year or you live with their spouse.
It's important to remember requirements for Mutual of Omaha Medicare Supplement plan discounts may vary by state, and they may not be available in all states.
Mutual of Omaha offers 3 Medigap plans in most areas where they offer plans, and all 3 options are among the more popular plans. Plan F, Plan G and Plan N together account for 85% of all Medigap enrollment.
Mutual of Omaha has been in the Medicare market since Medicare was first established and sells policies in all 50 states and Washington D.C.
Because the company also sells other types of policies such as life insurance and long-term care coverage, members may be able to benefit from a more bundled approach to their insurance products.
Aetna
| Aetna Pros | Aetna Cons |
|---|---|
|
Partnership with CVS Health further stabilizes what was already a strong company |
Medigap plans are only available in 42 states |
| Coverage is guaranteed renewable, meaning Aetna won't cancel your policy because of a health condition | A+ rating from Better Business Bureau (BBB), but average BBB customer review is only 1.08/5 stars |
What’s notable: Aetna currently offers its members a mobile/smartphone/tablet app called the Aetna HealthSM app. This app helps plan members manage their coverage.
Aetna sells 7 types of standardized Medigap plans and serves over 39 million customers. Aetna recently merged with CVS Health, so plan members can pair an Aetna Medigap plan with an Aetna Part D prescription drug plan to utilize one of the largest pharmacy networks in the U.S.
AARP/UnitedHealthcare
| AARP/UnitedHealthcare Pros | AARP/UnitedHealthcare Cons |
|---|---|
|
Generous plan selection in many states |
Must be an AARP member to enroll |
| Online portal makes it easy to check claims and search for providers | Discounts may be available, but they may not be available in all states |
What's notable: Around one out of every three Medigap beneficiaries are enrolled in a plan from UnitedHealthcare and AARP.
UnitedHealthcare is one of the top two largest insurance companies in the world. The company offers 9 of the 10 standardized Medigap plans that are available in most states, including the popular Plan F and Plan G and Plan N.
UnitedHealthcare provides Medicare Supplement Insurance plans through a partnership with AARP, making the company a trusted source of coverage for millions of older adults.
Anthem Blue Cross Blue Shield
| Anthem Blue Cross Blue Shield Pros | Anthem Blue Cross Blue Shield Cons |
|---|---|
|
Some plan members may bundle Medigap coverage with other Anthem benefits |
Anthem Blue Cross Blue Shield brand name plans aren't available in all states, though plans from affiliate partners may be available |
| Plans can include SilverSneakers fitness membership and programs like ScriptSave/WellRx and SpecialOffers discounts on things like vitamins and weight loss programs |
What’s notable: Anthem Blue Cross Blue Shield is one of a number of affiliated companies that sell Medicare Supplement plans in a number of states under various names tied to Anthem and Blue Cross Blue Shield.
Anthem Blue Cross Blue Shield and their associated family of brands offer different types Medigap plans in various locations throughout the U.S. and is one of the nation’s largest health insurers.
Like all Medicare Supplement plans, plans from Anthem Blue Cross and Blue Shield are accepted by any doctor, hospital and provider who accepts Medicare.
Humana
| Humana Pros | Humana Cons |
|---|---|
|
Wide range of plan availability across some parts of the country |
A+ rating from Better Business Bureau (BBB), but average BBB customer review is 1.17/5 stars |
| Depending on the plan, Humana Medigap plan members may have access to discounts on things like acupuncture, massages, nutrition services, chiropractic care, weight loss, vision, hearing, dental or aging in place |
What’s notable: Humana offers some additional perks to its Medigap plan members in certain markets, such as memberships to fitness clubs and discounts on prescription drugs and other products and services.
Depending on the state, some people may be able to get up to a 6% discount on their monthly Medicare Supplement premiums by enrolling online.
Cigna
| Cigna Pros | Cigna Cons |
|---|---|
|
Discounts available in some states, with discounts of up to 25% off monthly premiums for qualified plan members. |
Not as many types of Medigap plans available in most areas as bigger carriers |
| Access to Cigna Health Rewards Discount Program for savings on wellness products and other services | Some plan discounts are only available through online enrollment |
What’s notable: Cigna has been in business since 1792. Cigna Health & Life Insurance Company receives slightly more consumer complaints than the average insurance company, according to the National Association of Insurance Commissioners.
The company offers a few different types of Medigap plans. Cigna also has multiple mobile apps, which can help with everything from checking on the status of a Medicare claim to paying monthly premiums.
Manhattan Life
| Manhattan Life Pros | Manhattan Life Cons |
|---|---|
|
Plan discounts available in some states for things like households with multiple policies |
Plans aren't available in all 50 states |
| Additional product offerings like dental, vision and hearing that some members may pair with Original Medicare benefits and Medigap plan | Only offers Medigap Plans A, C, F, G and N |
What’s notable: At more than 170 years old, Manhattan Life is one of the longest continuously operating companies in the U.S.
Manhattan Life sells 5 Medicare Supplement Insurance plans, including the popular Plan F, Plan C and Plan G.
The company also sells a variety of other insurance products, including a dental, vision and hearing package that can be paired with a Medigap plan to give you some extra benefits that Original Medicare (Medicare Part A and Part B) doesn’t typically cover.
Bankers Fidelity
| Bankers Fidelity Pros | Bankers Fidelity Cons |
|---|---|
|
Plan selection is relatively large for a company of its size |
Plans may not be available in as many as 13 states including CA, NY and FL |
| Medigap plan coverage is guaranteed renewable if you pay your policy premiums on time | Company doesn't offer Medicare Part D prescription drug plans |
What’s notable: Bankers Fidelity has been serving customers for over 65 years.
Bankers Fidelity offers different types of Medicare Supplement insurance plans in a few states. Bankers Fidelity offers discounts of up to 7-10% off monthly premiums to qualified plan members in some states.
Transamerica
| Transamerica Pros | Transamerica Cons |
|---|---|
|
Strong company financial ratings and stability |
Doesn't offer much Medicare Supplement information on the Transamerica company website |
| Year-to-year premium increases are typically below industry averages | Company is more focused on life insurance products than on Medicare health plans |
What’s notable: Transamerica serves more than 12 million people in America and is over 100 years old.
Transamerica Medicare Supplement plans are sold by Transamerica Life Insurance Company, which maintains strong credit and financial ratings from A.M. Best, Fitch, Moody’s and S&P Global.
Wellabe
| Wellabe Pros | Wellabe Cons |
|---|---|
|
Strong company ratings and financial stability |
Only a limited number of plans available in some states |
| Medigap policies are guaranteed renewable for life |
What’s notable: Wellabe includes several affiliate companies, including Medico. Wellabe has been offering insurance designed specially for older adults since well before the Medicare program began.
Wellabe offers different types of Medigap plans in different states. A number of various discounts may be available depending on the state where a Wellabe Medicare Supplement plan is sold.
Wellabe also offers insurance products such as short-term care insurance, hospital indemnity insurance and more.
Other Top Medigap Companies
While the above companies made our supplemental insurance companies list of the top 10 Medigap providers, there may still be some other solid and reputable insurance companies that offer Medicare Supplement plans near you, depending on where you live.
These companies can include, in no particular order:
- Aflac Medicare Supplement
- GPM Health and Life Insurance Company
- National General
- Oxford Life Insurance Company
- United American Health Insurance Company
Choosing a Medicare Supplement Insurance Company
Not every insurance company sells Medicare Supplement Insurance in every state. And even each company’s plan selection can vary within the states it does serve. Choosing the company with the best Medicare insurance begins with choosing one that serves the area in which you live.
After identifying which companies sell plans in your location, the next step is to determine which Medigap plan is right for your needs. Learn the benefits of each type of plan and decide where you need the most coverage.
Next, compare prices. One company’s Plan G might cost more than another company’s Plan G despite the two options both offering the same coverage. Also be sure to check out any discounts available from each company.
Lastly, consider factors such as an insurance company’s financial strength ratings, customer service reviews and overall reputation to ensure you can trust them with your business.
Note: If you're looking for the best Medicare Advantage insurance companies, check out our review of the best Medicare Advantage plans and companies of 2025.
Helpadvisor.com is owned and operated by Tranzact, the parent company of TZ Insurance Solutions LLC, which is the owner/operator of MedicareSupplement.com and other websites mentioned on HelpAdvisor and which has a financial relationship with some of the carriers listed on HelpAdvisor. This may influence which products we write about, but HelpAdvisor maintains editorial independence, and our opinions and evaluations are our own.
AARP. Retrieved Sep. 2022 from https://www.aarpsupplementalhealth.com/content/dam/ole/MedSuppDocs/PremiumDiscount/StatePlanVariations/SA25908ST_WB27538NC.pdf.
Mark Farrah Associates. (May 26, 2022). Medicare Supplement Enrollment Trends and Plan Performance Insights. https://www.markfarrah.com/mfa-briefs/medicare-supplement-enrollment-trends-and-plan-performance-insights.
AM Best Information Services. (Jan. 4, 2021). AM Best Ranks UnitedHealth Group and Allianz as World’s Largest Insurers. http://news.ambest.com/PressContent.aspx?altsrc=2&refnum=30256.
Anthem. Retrieved Sep. 2022 from https://www.anthem.com/medicare/medicare-supplement-plans-medigap.
BBB. Retrieved Sep. 2022 from https://www.bbb.org/us/ky/louisville/profile/health-insurance/humana-inc-0402-2004402.
Cigna. https://www.cigna.com/medicare/shop-plans/supplemental/?campaign_ID=CSBORG.
NAIC. Retrieved Sep. 2022 from https://www.naic.org/cis_refined_results.htm?TABLEAU=CIS_COMPLAINTS&COCODE=67369&:refresh.
Manhattan Life. Retrieved Sep. 2022 from https://www.manhattanlife.com/Seniors/Medicare-Supplement.
Manhattan Life. https://www.manhattanlife.com/Seniors/Medicare-Supplement
Transamerica. https://www.transamerica.com/why-transamerica/financial-strength.
Transamerica. https://www.transamerica.com/why-transamerica/company-overview.
Medico. https://www.gomedico.com/about-us.
