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Best Medicare Supplement Plan G Companies in 2025

Check out the best options for Medicare Supplement Plan G based on pricing, customer satisfaction and added benefits.
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Jul 25, 2025
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Medigap Plan G is the most popular plan type. It's also the most comprehensive Medicare Supplement Insurance plan that all Medicare members can buy.

Plan G covers nearly all of the out-of-pocket expenses associated with Medicare Part A and Part B, such as copays, coinsurance and deductibles. (Medigap plans sold to people who became eligible for Medicare after 2019 can’t cover the Medicare Part B deductible. Plan G doesn’t cover that cost — $257 in 2025.)

Every company’s Medigap Plan G covers the same Medicare benefits. But some insurance companies can be better choices than others. Since it can be difficult or impossible to change Medigap plans after the end of your Medigap open enrollment period, it’s a good idea to choose your Medigap Plan G company carefully.

Here are NerdWallet’s picks for the best Medicare Supplement Plan G companies for 2025.

45+ Medicare companies and brands analyzed by our team of experts.

30+ years of combined experience covering Medicare and personal finance.

Governed by NerdWallet's strict guidelines for editorial integrity.

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.

Best Medicare Supplement Plan G companies

NerdWallet compares Medicare Supplement Insurance companies based on plan availability, member satisfaction, pricing, extra perks and more.

Insurance company
NerdWallet rating
Plan types offered
NAIC complaint rate
Premium discounts available
Learn more
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AARP/UnitedHealthcare Medigap logo
UnitedHealthcare
(844) 939-0223 / TTY 711
Call UnitedHealthcare
from UnitedHealthcare
5.0/5
A, B, C, F, G, K, L and N.Far fewer than expectedAbove average
(844) 939-0223 / TTY 711
Call UnitedHealthcare
from UnitedHealthcare
Anthem Medigap logo
Anthem
(855) 432-0512 / TTY 711
M-F 9AM-9PM, Sat 10AM-6PM ETSpeak to a licensed insurance agent on askchapter.org
on NerdWallet
4.5/5
A, F, G and N.Close to expectedAverage
(855) 432-0512 / TTY 711
M-F 9AM-9PM, Sat 10AM-6PM ETSpeak to a licensed insurance agent on askchapter.org
on NerdWallet
Mutual of Omaha Medigap logo
Mutual of Omaha
844-748-6010 / TTY 711
M-F Hours: 9am-4:40pm ETCall Mutual of Omaha
on NerdWallet
4.0/5
A, F, G and N.Far fewer than expectedAbove average
844-748-6010 / TTY 711
M-F Hours: 9am-4:40pm ETCall Mutual of Omaha
on NerdWallet
Wellabe Medigap logo
Wellabe
(855) 432-0512 / TTY 711
M-F 9AM-9PM, Sat 10AM-6PM ETSpeak to a licensed insurance agent on askchapter.org
on NerdWallet
4.0/5
A, F, G and N.Close to expectedAbove average
(855) 432-0512 / TTY 711
M-F 9AM-9PM, Sat 10AM-6PM ETSpeak to a licensed insurance agent on askchapter.org
on NerdWallet

Best overall: AARP/UnitedHealthcare

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AARP/UnitedHealthcare Medigap - UHC (tables)
UnitedHealthcare
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.
Call UnitedHealthcare
from UnitedHealthcare
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 offered A, B, C, F, G, K, L and N.
NAIC complaint rate Far fewer than expected
Premium discounts available Above average
IS THIS PROVIDER AVAILABLE IN MY STATE?

Service area: 50 states and Washington, D.C..

Why we like it: AARP and UnitedHealthcare make Medigap Plan G policies widely available with relatively competitive prices and few member complaints. Their breadth of features and options can be hard to beat.

Pros

  • Competitive prices for Plan G.
  • Available in every state.
  • Few customer complaints.

Cons

  • Plans with health and wellness discounts may cost a little extra in some areas. Some competitors include them at no additional cost.
  • Plan variations and extras can get confusing.
  • Network requirements for lower-cost Medicare Select plans.

» MORE: Read our review of AARP/UnitedHealthcare Medicare Supplement Insurance

Best for low prices: Wellabe

Wellabe (formerly Medico) offers low premiums for a small variety of Medigap plan types. Downsides include minimal perks and limited state availability.
M-F 9AM-9PM, Sat 10AM-6PM ETSpeak to a licensed insurance agent on askchapter.org
on NerdWallet
Wellabe (formerly Medico) offers low premiums for a small variety of Medigap plan types. Downsides include minimal perks and limited state availability.
Plan types offered A, F, G and N.
NAIC complaint rate Close to expected
Premium discounts available Above average
IS THIS PROVIDER AVAILABLE IN MY STATE?

Service area: 28 States.

Why we like it: Wellabe has some of the lowest Medigap Plan G prices among all companies NerdWallet rates, on average. If cutting costs is your number one goal, Wellabe is worth a look.

Pros

  • Low Plan G prices.

Cons

  • Few perks or extras.
  • Limited state footprint.

» MORE: Read our review of Wellabe Medicare Supplement Insurance

Best for additional coverage options: Anthem

Anthem stands out from most other Medigap companies by offering options to add dental and vision coverage to Medigap plans. Its Plan G premiums are low, but it offers few plan type options and serves fewer states than most competitors.
M-F 9AM-9PM, Sat 10AM-6PM ETSpeak to a licensed insurance agent on askchapter.org
on NerdWallet
Anthem stands out from most other Medigap companies by offering options to add dental and vision coverage to Medigap plans. Its Plan G premiums are low, but it offers few plan type options and serves fewer states than most competitors.
Plan types offered A, F, G and N.
NAIC complaint rate Close to expected
Premium discounts available Average
IS THIS PROVIDER AVAILABLE IN MY STATE?

Service area: 14 states.

Why we like it: If you want to roll dental, hearing and vision coverage into your Medigap Plan G purchase, Anthem is a strong option. The company’s Anthem Extras packages offer multiple tiers of dental, hearing and/or vision coverage that you can mix and match with most Anthem Medigap policies to fit your needs.

Pros

  • Mix and match dental and vision add-ons.
  • Low Plan G premiums.
  • Extra perks for fitness, health and wellness products and services.

Cons

  • Available in only about one-third of states.

» MORE: Read our review of Anthem Medicare Supplement Insurance

Best for high-deductible Medigap Plan G: Mutual of Omaha

Mutual of Omaha Medigap
Mutual of Omaha
Mutual of Omaha's generous household discount could represent significant savings, and its members file few complaints about their policies.
844-748-6010 / TTY 711
M-F Hours: 9am-4:40pm ETCall Mutual of Omaha
from Mutual of Omaha
Mutual of Omaha's generous household discount could represent significant savings, and its members file few complaints about their policies.
Plan types offered A, F, G and N.
NAIC complaint rate Far fewer than expected
Premium discounts available Above average
IS THIS PROVIDER AVAILABLE IN MY STATE?

Service area: Every state except Massachusetts, plus Washington, D.C..

Why we like it: Mutual of Omaha makes high-deductible Medigap Plan G widely available, whereas many competitors offer it in fewer states. Mutual of Omaha plans have good, low complaint rates, and sizable household discounts might help reduce prices.

Pros

  • Complaint rates are well below the market average.
  • Sizable premium discounts.

Cons

  • Plan G premiums aren't the lowest.
  • Minimal perks.

» MORE: Read our review of Mutual of Omaha Medicare Supplement Insurance

More Nerdy Perspective

What’s the best company for Medicare Supplement Plan G?

NerdWallet's top picks for Medigap Plan G in 2025 include AARP / UnitedHealthcare, Mutual of Omaha, Wellabe and Anthem. Those companies stood out from the field after we analyzed factors including premiums, discounts, complaint rates, extra perks, online quote availability and more. I recommend comparing quotes from several insurance companies. Also consider working with a licensed agent or broker to find the best fit for your budget and circumstances.

Profile photo of Alex Rosenberg
Profile photo of Alex Rosenberg
Alex Rosenberg, lead writer covering Medicare

Find the right Medicare Supplement Insurance plan

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.

Here’s an overview of our top picks for Medigap Plan G:

You may be eligible for Medicare plans during a special enrollment period if you are turning 65, new to Medicare plans, moving or losing coverage.

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.

NerdWallet writers are subject matter authorities who use primary, trustworthy sources to inform their work, including peer-reviewed studies, government websites, academic research and interviews with industry experts. All content is fact-checked for accuracy, timeliness and relevance. You can learn more about NerdWallet's high standards for journalism by reading our editorial guidelines.

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.