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Best Medicare Supplement Insurance Companies in 2025
Find the best Medigap insurance company for your needs and your budget.
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Alex Rosenberg Lead Writer | Medicare, health care, legislation
Alex Rosenberg is a NerdWallet writer focusing on Medicare and information technology. He has more than 10 years of experience researching and writing about health care, insurance, technology, data privacy and public policy. His research has supported lawmakers in the Wisconsin State Legislature as well as health systems and national health authorities in the U.S. and more than 10 other countries. He is based in Eau Claire, Wisconsin.
Holly Carey joined NerdWallet in 2021 as an editor on the team responsible for expanding content to additional topics within personal finance. She currently leads the Medicare team. Previously, Holly wrote and edited content and developed digital media strategies as a public affairs officer for the U.S. Navy. She is based in Virginia Beach, Virginia.
NerdWallet developed our own consumer-first scoring methodology, collected data and crunched the numbers to find the best Medigap plans. We analyzed Medicare Supplement Insurance companies covering nearly 87% of all Medigap beneficiaries to pick the best of 2025 based on cost, member satisfaction and more.
Here are NerdWallet’s picks for the top five companies for Medicare Supplement plans for 2025.
NerdWallet’s Medicare content, including articles, reviews and recommendations, is produced by a team of writers and editors who specialize in Medicare. Their work has appeared in The Associated Press, Washington Post, Nasdaq, MSN, MarketWatch, Yahoo! Finance and other national and regional media outlets. They have been cited in publications including Healthline, and appeared on NerdWallet's "Smart Money" podcast.
Our picks: Best Medicare Supplement Insurance companies
NerdWallet scores Medigap supplemental health insurance companies' performance in terms of plan choices, member satisfaction, affordable prices, extra perks, service area and more.
Best for Medigap plan options: AARP/UnitedHealthcare
NerdWallet’s ratings are determined by our editorial team. The scoring formula incorporates pricing, complaint data, online quote availability, coverage options and more.
AARP Medicare Supplement Insurance from UnitedHealthcare has low complaint rates when compared with most competitors. Some plans have several variations with different prices, wellness extras and/or network restrictions, which could make choosing a plan confusing.
Plan types offeredMedigap plan types the company generally offers (availability may vary by location). Options include Plans A, B, C, D, F, G, K, L, M and N
A, B, C, F, G, K, L and N.
NAIC complaint rateHow often the company’s members file complaints about their policies as compared to the industry average, according to data from the National Association of Insurance Commissioners (NAIC). NerdWallet conducts its data analysis and reaches conclusions independently and without the endorsement of the NAIC.
Far fewer than expected
Premium discounts availableBased on the number and size of a company’s available discounts on monthly premiums, in comparison to other insurance companies.
Above average
IS THIS PROVIDER AVAILABLE IN MY STATE?
Plan availability is determined by ZIP code. While a plan may be available in your state, it may not be offered in your specific county. Please verify plan availability with a licensed insurance agent.
Pros
Offers as many as eight out of 10 plan types.
Available in every state.
Few customer complaints.
Cons
Plans with health and wellness discounts may cost a little extra in some areas, while some competitors include them at no additional cost.
Plan variations and extras can get confusing.
Network requirements for lower-cost Medicare Select plans.
Plan types offeredMedigap plan types the company generally offers (availability may vary by location). Options include Plans A, B, C, D, F, G, K, L, M and N
A, B, C, F, G, K, L and N.
NAIC complaint rateHow often the company’s members file complaints about their policies as compared to the industry average, according to data from the National Association of Insurance Commissioners (NAIC). NerdWallet conducts its data analysis and reaches conclusions independently and without the endorsement of the NAIC.
Far fewer than expected
Premium discounts availableBased on the number and size of a company’s available discounts on monthly premiums, in comparison to other insurance companies.
Above average
IS THIS PROVIDER AVAILABLE IN MY STATE?
Plan availability is determined by ZIP code. While a plan may be available in your state, it may not be offered in your specific county. Please verify plan availability with a licensed insurance agent.
PROS & CONS
Pros
Offers as many as eight out of 10 plan types.
Available in every state.
Few customer complaints.
Cons
Plans with health and wellness discounts may cost a little extra in some areas, while some competitors include them at no additional cost.
Plan variations and extras can get confusing.
Network requirements for lower-cost Medicare Select plans.
Why we picked it: More plan type options can offer greater flexibility to choose the best fit for coverage and cost. While many competitors offer four or five Medigap plans, AARP offers every plan except for Plans D and M, and its policies are available everywhere in the country.
NerdWallet’s ratings are determined by our editorial team. The scoring formula incorporates pricing, complaint data, online quote availability, coverage options and more.
State Farm sells Medigap policies in most states, and members have few complaints about the company. However, the prices could be lower, and competitors offer more opportunities for discounts or added perks with your policy.
We will connect you with Medicare companies based on the information you provide. They will help you find a plan that suits your needs. If you prefer to speak to a licensed insurance agent right away, please call the number listed above.
Plan types offeredMedigap plan types the company generally offers (availability may vary by location). Options include Plans A, B, C, D, F, G, K, L, M and N
A, C, D, F, G and N.
NAIC complaint rateHow often the company’s members file complaints about their policies as compared to the industry average, according to data from the National Association of Insurance Commissioners (NAIC). NerdWallet conducts its data analysis and reaches conclusions independently and without the endorsement of the NAIC.
Far fewer than expected
Premium discounts availableBased on the number and size of a company’s available discounts on monthly premiums, in comparison to other insurance companies.
Below average
IS THIS PROVIDER AVAILABLE IN MY STATE?
Plan availability is determined by ZIP code. While a plan may be available in your state, it may not be offered in your specific county. Please verify plan availability with a licensed insurance agent.
Pros
Complaint rates over 50% below the market average.
Competitive prices in some higher-cost locations.
Cons
Few discounts or health and wellness perks.
High premiums in some locations.
Plan types offeredMedigap plan types the company generally offers (availability may vary by location). Options include Plans A, B, C, D, F, G, K, L, M and N
A, C, D, F, G and N.
NAIC complaint rateHow often the company’s members file complaints about their policies as compared to the industry average, according to data from the National Association of Insurance Commissioners (NAIC). NerdWallet conducts its data analysis and reaches conclusions independently and without the endorsement of the NAIC.
Far fewer than expected
Premium discounts availableBased on the number and size of a company’s available discounts on monthly premiums, in comparison to other insurance companies.
Below average
IS THIS PROVIDER AVAILABLE IN MY STATE?
Plan availability is determined by ZIP code. While a plan may be available in your state, it may not be offered in your specific county. Please verify plan availability with a licensed insurance agent.
PROS & CONS
Pros
Complaint rates over 50% below the market average.
Competitive prices in some higher-cost locations.
Cons
Few discounts or health and wellness perks.
High premiums in some locations.
Why we picked it: Plans with low complaint rates might offer a better member experience and/or more helpful customer service, and State Farm members very rarely file complaints about their Medigap policies.
NerdWallet’s ratings are determined by our editorial team. The scoring formula incorporates pricing, complaint data, online quote availability, coverage options and more.
Mutual of Omaha's household discount of up to 12% is larger than most competitors' discounts, and members file few complaints about their policies.
We will connect you with Medicare companies based on the information you provide. They will help you find a plan that suits your needs. If you prefer to speak to a licensed insurance agent right away, please call the number listed above.
Plan types offeredMedigap plan types the company generally offers (availability may vary by location). Options include Plans A, B, C, D, F, G, K, L, M and N
A, F, G and N.
NAIC complaint rateHow often the company’s members file complaints about their policies as compared to the industry average, according to data from the National Association of Insurance Commissioners (NAIC). NerdWallet conducts its data analysis and reaches conclusions independently and without the endorsement of the NAIC.
Far fewer than expected
Premium discounts availableBased on the number and size of a company’s available discounts on monthly premiums, in comparison to other insurance companies.
Above average
IS THIS PROVIDER AVAILABLE IN MY STATE?
Plan availability is determined by ZIP code. While a plan may be available in your state, it may not be offered in your specific county. Please verify plan availability with a licensed insurance agent.
Pros
Complaint rates are well below the market average.
Available in every state but Massachusetts.
Up to a 12% discount for living with another adult.
Cons
Few choices for plan type.
Plan types offeredMedigap plan types the company generally offers (availability may vary by location). Options include Plans A, B, C, D, F, G, K, L, M and N
A, F, G and N.
NAIC complaint rateHow often the company’s members file complaints about their policies as compared to the industry average, according to data from the National Association of Insurance Commissioners (NAIC). NerdWallet conducts its data analysis and reaches conclusions independently and without the endorsement of the NAIC.
Far fewer than expected
Premium discounts availableBased on the number and size of a company’s available discounts on monthly premiums, in comparison to other insurance companies.
Above average
IS THIS PROVIDER AVAILABLE IN MY STATE?
Plan availability is determined by ZIP code. While a plan may be available in your state, it may not be offered in your specific county. Please verify plan availability with a licensed insurance agent.
PROS & CONS
Pros
Complaint rates are well below the market average.
Available in every state but Massachusetts.
Up to a 12% discount for living with another adult.
Cons
Few choices for plan type.
Why we picked it: Some applicants can receive up to a 12% discount if they live with a spouse, domestic partner or other adults. In some states, this discount requires that the other household member already has or is applying for a Mutual of Omaha Medigap policy.
Service area: Every state except Massachusetts, plus Washington, D.C
Mutual of Omaha Corporate Communications. Email Confirmation. Accessed Jan 29, 2024.
NerdWallet’s ratings are determined by our editorial team. The scoring formula incorporates pricing, complaint data, online quote availability, coverage options and more.
Anthem stands out from most other Medigap companies by offering options to add dental and vision coverage to Medigap plans. It offers only a few Medigap plan types, though, and serves fewer states than most competitors.
We will connect you with Medicare companies based on the information you provide. They will help you find a plan that suits your needs. If you prefer to speak to a licensed insurance agent right away, please call the number listed above.
Plan types offeredMedigap plan types the company generally offers (availability may vary by location). Options include Plans A, B, C, D, F, G, K, L, M and N
A, F, G and N.
NAIC complaint rateHow often the company’s members file complaints about their policies as compared to the industry average, according to data from the National Association of Insurance Commissioners (NAIC). NerdWallet conducts its data analysis and reaches conclusions independently and without the endorsement of the NAIC.
Close to expected
Premium discounts availableBased on the number and size of a company’s available discounts on monthly premiums, in comparison to other insurance companies.
Above average
IS THIS PROVIDER AVAILABLE IN MY STATE?
Plan availability is determined by ZIP code. While a plan may be available in your state, it may not be offered in your specific county. Please verify plan availability with a licensed insurance agent.
Pros
Mix and match dental and vision add-ons.
Several discounts based on household and payment methods.
Extra perks for fitness, health and wellness products and services.
Cons
Lower-coverage plans are sometimes more expensive.
Few Medigap plan types available.
Available in only about one-third of states.
Plan types offeredMedigap plan types the company generally offers (availability may vary by location). Options include Plans A, B, C, D, F, G, K, L, M and N
A, F, G and N.
NAIC complaint rateHow often the company’s members file complaints about their policies as compared to the industry average, according to data from the National Association of Insurance Commissioners (NAIC). NerdWallet conducts its data analysis and reaches conclusions independently and without the endorsement of the NAIC.
Close to expected
Premium discounts availableBased on the number and size of a company’s available discounts on monthly premiums, in comparison to other insurance companies.
Above average
IS THIS PROVIDER AVAILABLE IN MY STATE?
Plan availability is determined by ZIP code. While a plan may be available in your state, it may not be offered in your specific county. Please verify plan availability with a licensed insurance agent.
PROS & CONS
Pros
Mix and match dental and vision add-ons.
Several discounts based on household and payment methods.
Extra perks for fitness, health and wellness products and services.
Cons
Lower-coverage plans are sometimes more expensive.
Few Medigap plan types available.
Available in only about one-third of states.
Why we picked it: In some locations, Anthem offers options to add on coverage with cost sharing for certain services not included in standard Medigap plan types. For example, Anthem Extras packages can cover some costs for dental cleanings, dental procedures, eye exams, eyeglasses and/or contact lenses.
We will connect you with Medicare companies based on the information you provide. They will help you find a plan that suits your needs. If you prefer to speak to a licensed insurance agent right away, please call the number listed above.
Plan types offeredMedigap plan types the company generally offers (availability may vary by location). Options include Plans A, B, C, D, F, G, K, L, M and N
A, B, C, D, F, G, K, L, M and N.
NAIC complaint rateHow often the company’s members file complaints about their policies as compared to the industry average, according to data from the National Association of Insurance Commissioners (NAIC). NerdWallet conducts its data analysis and reaches conclusions independently and without the endorsement of the NAIC.
Close to expected
Premium discounts availableBased on the number and size of a company’s available discounts on monthly premiums, in comparison to other insurance companies.
Average
IS THIS PROVIDER AVAILABLE IN MY STATE?
Plan availability is determined by ZIP code. While a plan may be available in your state, it may not be offered in your specific county. Please verify plan availability with a licensed insurance agent.
Pros
"Blue to Blue" program could mean easier changes to coverage in the future.
Available in all 50 states and Washington, D.C.
Cons
Offerings and experiences vary depending on BCBS company.
Cheaper Medicare Select plans have network requirements.
Plan types offeredMedigap plan types the company generally offers (availability may vary by location). Options include Plans A, B, C, D, F, G, K, L, M and N
A, B, C, D, F, G, K, L, M and N.
NAIC complaint rateHow often the company’s members file complaints about their policies as compared to the industry average, according to data from the National Association of Insurance Commissioners (NAIC). NerdWallet conducts its data analysis and reaches conclusions independently and without the endorsement of the NAIC.
Close to expected
Premium discounts availableBased on the number and size of a company’s available discounts on monthly premiums, in comparison to other insurance companies.
Average
IS THIS PROVIDER AVAILABLE IN MY STATE?
Plan availability is determined by ZIP code. While a plan may be available in your state, it may not be offered in your specific county. Please verify plan availability with a licensed insurance agent.
PROS & CONS
Pros
"Blue to Blue" program could mean easier changes to coverage in the future.
Available in all 50 states and Washington, D.C.
Cons
Offerings and experiences vary depending on BCBS company.
Cheaper Medicare Select plans have network requirements.
Why we picked it: There’s at least one Blue Cross Blue Shield company serving every state, so it could be worth seeing how Blue Cross Blue Shield plans available in your location stack up to plans from other top companies’ in terms of plan type offerings, pricing and discounts.
Because rating factors can differ significantly among over 30 independent Blue Cross Blue Shield companies, NerdWallet doesn't calculate a star rating for Blue Cross Blue Shield as we do for other Medigap companies. For more information, see our full ratings methodology.
💬 From our Nerds: What are the top five Medicare supplement plans?
"Based on NerdWallet’s Medigap rubric, I picked five best Medicare Supplement Insurance companies for 2025: AARP/UnitedHealthcare, Mutual of Omaha, State Farm, Anthem and Blue Cross Blue Shield. These companies stood out based on plan types offered, premiums, discounts, complaint rates and nationwide availability."
Because Medigap plans are standardized, you can get precisely the same Medicare benefits from any company offering the plan. So when you shop, keep these considerations in mind to find the best policy to fit your needs:
Is your preferred plan available? Health insurance companies don’t always sell every plan, so check who sells the plan you want to buy in your area.
What are the premiums? Prices for the same plan can vary between companies, so check to find the most competitive rates.
Will your premiums change over time? Most policies cost more as you age, but some companies offer policies that let you lock in a price when you sign up.
Are there extras? Medigap plans’ core benefits are standardized, but in certain cases, some companies include such perks as discount programs or gym memberships.
If you have additional questions about Medicare, visit Medicare.gov or call 800-MEDICARE (800-633-4227, TTY 877-486-2048).
Note regarding NAIC complaint data: NerdWallet conducts its data analysis and reaches conclusions independently and without the endorsement of the NAIC.
Medicare Supplement Insurance ratings methodology
NerdWallet’s Medicare Supplement Insurance (Medigap) ratings are based on pricing, discounts, plan types offered, complaint data from the National Association of Insurance Commissioners, consumer experience, additional perks and benefits, and more. To calculate each health insurance company's rating, we adjusted the scores to a curved 5-point scale, rounded to the nearest half star.
NerdWallet reviewed 15 Medicare Supplement Insurance companies based on highest enrollment and greatest online search volume. At the national level, our scored reviews include companies covering about two-thirds of all Medigap beneficiaries. At the state level, our research includes at least one of the two largest Medigap insurance companies in 48 of the 50 states, plus Washington, D.C.
These ratings are a guide, but we encourage you to shop around and compare several insurance quotes to find the best coverage and rate for you. NerdWallet does not receive compensation for any reviews. Read our editorial guidelines and full ratings methodology for Medicare Supplement Insurance.
Insurer complaints methodology
We examined complaints received by state insurance regulators and reported to the National Association of Insurance Commissioners. To assess how insurers compare to one another, the NAIC calculates a complaint index each year for each subsidiary, measuring its share of total complaints relative to its size, or share of total premiums in the industry. To evaluate a company’s complaint history, we calculated a similar index for each insurance company, weighted by market shares of each subsidiary. We score companies based on this index of how many complaints the company receives relative to its market share. NerdWallet conducts its data analysis and reaches conclusions independently and without the endorsement of the NAIC.
