In states with this pricing structure, the average monthly cost for the AARP Medigap Plan G is $124 per month for someone who is 65 years old. At age 75, the average monthly premium is $199, and it's $209 for those aged 85.

AARP does not necessarily argue that UnitedHealthcare is the right choice for every Medicare beneficiary, but it does proclaim it as a trusted healthcare partner and resource. Of course, there may be an additional reason other than UHCs good name. UnitedHealthcare pays AARP for the use of its name.

Plan F and Plan G are the two most popular Medigap plans. Plan F is only available to those who qualified for Medicare before 2020, but because of its comprehensive benefits, about 46% of Medicare Supplement enrollees have chosen this plan.

UnitedHealthCare (UHC) Medicare Supplement plans are available only to AARP members. Enrollment is simple, the coverage is easy to use and the plans are good options for those who travel frequently and may use medical care in multiple states.

AARP/UnitedHealthcare's PPO plans are a very good deal, with average prices that are far below the industry. Not only are the PPO plans affordable, but they're also desirable because they provide more flexibility about which doctors you use because they cover both in-network and out-of-network health care.

Plan F By and large, Plan F is the most popular Medicare Supplement plan due to its coverage of more out-of-pocket Medicare costs than any other Medigap plan type.

Best Overall AARP/UnitedHealthcare AARP's UHC plans are our pick for the best overall Medicare Advantage plans. These plans feature high Medicare star ratings, the largest provider network of all MA plan providers, and a broad array of options. UnitedHealthcare (UHC) is the largest provider of Medicare Advantage plans.

Plan G With the exception of Plan F, which is no longer available to all beneficiaries, Plan G covers the most Medicare costs of any Medigap plan type. Those enrolled in Plan G are only responsible for paying their annual Medicare Part B deductible.

If access to a wide range of doctors and hospitals is important to you, UnitedHealthcare has a reasonably large network of providers, but it's not as large as Blue Cross Blue Shield. The downside of UnitedHealthcare's plans is its lackluster customer experience. Customers rate the plan as only 3.6 to 3.7 stars.

Plans F and G also offer a high‑deductible version in some states. You must pay Medicare-covered costs - coinsurance, copays and deductibles - up to the deductible amount, $2,700 in 2023, before your plan starts paying.

Medicare Supplement Plan F is the most comprehensive Medigap option available, providing beneficiaries with 100% coverage of Medicare-covered medical expenses after Original Medicare pays its portion.

Average Medicare Supplement Plan F premiums in 2023 are lowest for beneficiaries at age 66 ($153.29 per month) and highest for beneficiaries at age 84 ($257.57 per month).