Best Medicare Supplement Plan G Companies in 2024-2025

Medigap Plan G is the most comprehensive Medicare Supplement Insurance plan that all Medicare members can buy. It’s also the most popular of these plan types^[0]

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 — $257 in 2025 — so Plan G doesn’t cover that cost^[0]

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 2024-2025.

Best Medicare Supplement Plan G companies

Best overall: AARP/UnitedHealthcare

Service area: 50 states and Washington, D.C.^[0]

Why we like it: AARP and UnitedHealthcare make Medigap Plan G policies widely available with low prices and few member complaints. Unless you’re looking for specific side benefits or a high-deductible Plan G option, AARP/UnitedHealthcare Plan G can be hard to beat.

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

Best for additional coverage options: Anthem

Service area: 14 states^[0]

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^[0]

» MORE: Read our review of Anthem Medicare Supplement Insurance

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

Service area: Every state except Massachusetts, plus Washington, D.C.^[0]

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 get far fewer complaints than average and have reasonably competitive pricing. The pricing gets even better for applicants who qualify for a household discount of up to 12% (terms and discount levels can vary by location)^[0]

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

Honorable mention: Blue Cross Blue Shield

Service area: 50 states and Washington, D.C.^[0]

Why we like it: Blue Cross Blue Shield licensees offer Medigap policies everywhere in the country. Broadly speaking, BCBS companies offer competitive prices and have roughly average complaint rates — but because different BCBS companies serve different locations, pricing, perks and member experience can vary. It’s worth looking at the Blue Cross Blue Shield options in your area to see how their Plan G offerings compare to other top companies.

» MORE: Read our review of Blue Cross Blue Shield Medicare Supplement Insurance

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

• Best overall: AARP/UnitedHealthcare Medicare Supplement Insurance

• Best for additional coverage options: Anthem Medicare Supplement Insurance

• Best for high-deductible Medigap Plan G: Mutual of Omaha Medicare Supplement Insurance

• Honorable mention: Blue Cross Blue Shield Medicare Supplement Insurance