What AARP and UnitedHealthcare offer together

AARP does not run health insurance itself. Instead, AARP partners with UnitedHealthcare to sell Medicare Advantage and Medigap plans under the AARP brand. When you buy an "AARP" plan, you are actually buying a UnitedHealthcare product that AARP has negotiated and branded. AARP receives a commission on each plan sold, which funds AARP's other programs and advocacy work.

This partnership matters because it shapes what you get: the plan design, the doctor network, the prescription drug coverage, and the customer service all come from UnitedHealthcare. AARP's role is to market the plans, negotiate rates, and lend its name and member discounts. Understanding which company does what helps you know who to call when something goes wrong and what to expect from the plan itself.

Key Takeaways

  • AARP-branded plans are sold and administered by UnitedHealthcare, so your coverage, network, and claims are UnitedHealthcare's responsibility.
  • AARP members typically receive discounts on premiums compared to the same UnitedHealthcare plan sold outside the AARP brand.
  • You do not have to be an AARP member to buy an AARP-branded plan, though membership often lowers your cost.
  • The plans come in two main types: Medicare Advantage (HMO or PPO) and Medigap (supplemental coverage), each with different costs and rules.
  • Enrollment happens during Medicare's open enrollment period (October 15 to December 7 each year), and you can switch plans or drop AARP coverage during that window.

The two main types of AARP-UnitedHealthcare plans

Medicare Advantage plans (also called Part C) replace your original Medicare coverage. You pay a monthly premium, and the plan covers hospital, doctor, and usually prescription drug benefits in one package. Most AARP Medicare Advantage plans are HMOs, which means you choose a primary care doctor and need referrals to see specialists. Some areas also offer PPO versions, which let you see any doctor without a referral but usually cost more. These plans have annual out-of-pocket limits, which means once you hit that cap, the plan pays 100 percent of covered costs for the rest of the year.

Medigap plans (also called supplemental insurance) work alongside original Medicare. You keep your Medicare Part A and Part B, and the Medigap plan pays some or all of the costs that Medicare does not cover—copays, coinsurance, and deductibles. Medigap plans do not include prescription drug coverage, so you buy that separately through a standalone Part D plan. Medigap premiums tend to be higher than Medicare Advantage premiums, but you have more freedom to see any doctor who accepts Medicare.

The choice between them depends on your health, your doctors, and your budget. Medicare Advantage costs less upfront but limits your network and has out-of-pocket caps. Medigap costs more monthly but gives you broader access and predictable costs.

How AARP membership affects your plan and cost

You do not have to be an AARP member to buy an AARP-branded UnitedHealthcare plan. However, AARP members usually pay lower premiums than non-members for the same coverage. The discount varies by plan and region, but it can be $10 to $30 per month or more.

If you are not an AARP member and want to buy an AARP plan, you have two paths: pay the non-member premium, or join AARP first and then buy the plan at the member rate. AARP membership costs $16 per year, so if the member discount is $20 per month, you break even in less than a month. Many people find it worth joining just for the plan discount, even if they do not use other AARP benefits.

AARP membership also gives you access to AARP's customer service line and educational resources, separate from UnitedHealthcare's support. Some people find AARP's line easier to reach or more helpful for questions about plan choices, though UnitedHealthcare handles the actual claims and coverage decisions.

What happens when you enroll and what to expect after

Enrollment for AARP-UnitedHealthcare plans happens during Medicare's annual open enrollment period, which runs from October 15 to December 7 each year. You can enroll online through Medicare.gov, by phone through Medicare (1-800-MEDICARE), or directly through AARP's website. If you are new to Medicare, you have a seven-month window around your 65th birthday to enroll without penalty.

Once you enroll, your coverage starts on January 1 of the following year (if you enroll during the standard October-December window). You will receive your insurance card, plan documents, and a list of in-network doctors and hospitals. For Medicare Advantage plans, you need to choose a primary care doctor within the first 30 days to avoid delays in care. For Medigap, you can see any doctor who accepts Medicare when ready.

After enrollment, you can change your mind during the open enrollment period each year. You can switch to a different AARP plan, drop AARP coverage entirely and go back to original Medicare, or move to a non-AARP plan. If you have a major life event—such as moving out of the plan's service area, losing other coverage, or a significant change in income—you may be able to change plans outside the open enrollment window.

Network, doctors, and how to check if your provider is covered

AARP-UnitedHealthcare plans use UnitedHealthcare's doctor and hospital networks, which vary by region. Some areas have large networks with most local providers included; others have smaller networks. Before you enroll, you should check whether your current doctors and preferred hospital are in the plan's network.

To find in-network providers, go to UnitedHealthcare's website and search by plan name and your zip code. You can also call the plan's customer service number (on any AARP plan materials) and ask directly. Have your doctors' names and your hospital ready when you call. If your doctor is not in the network, ask whether they accept Medicare patients outside the network and what your out-of-pocket cost would be. Some doctors will see you as an out-of-network patient for a higher copay; others will not.

If your doctor is not in the network and you want to stay with them, a Medigap plan may be a better choice than Medicare Advantage, because Medigap works with any doctor who accepts Medicare. However, Medigap premiums are usually higher, so you will need to weigh the cost against the benefit of keeping your current doctor.

Prescription drug coverage and how it works

Most AARP Medicare Advantage plans include prescription drug coverage (Part D) as part of the plan. You pay a monthly premium for the plan, and that covers both medical and drug benefits. The plan has a formulary—a list of covered drugs—and you pay a copay or coinsurance for each prescription. Some drugs may require prior authorization from the plan before the pharmacy will fill them.

If you choose a Medigap plan, prescription drug coverage is separate. You buy a standalone Part D plan from any insurance company, including UnitedHealthcare. You pay a separate monthly premium for Part D, and the plan covers drugs on its formulary. You can switch Part D plans every year during open enrollment, even if you keep the same Medigap plan.

Both Medicare Advantage and Medigap plans have an annual deductible for drugs, a coverage gap (sometimes called the "donut hole") where you pay more out of pocket, and a catastrophic coverage phase where your costs level off. The exact amounts change each year. When you are comparing plans, check the formulary to make sure your regular medications are covered and at what cost.

Costs: premiums, deductibles, copays, and out-of-pocket limits

AARP-UnitedHealthcare plans have different cost structures depending on the type. Medicare Advantage plans typically have a low or zero monthly premium (especially for AARP members), a yearly deductible, and copays for doctor visits and prescriptions. The plan has an annual out-of-pocket maximum, which means once you pay that amount in copays and coinsurance, the plan covers 100 percent of covered costs for the rest of the year. This cap protects you from catastrophic costs if you have a serious illness or injury.

Medigap plans have a higher monthly premium but lower or no deductibles and copays. Once you meet the plan's requirements, Medicare and the Medigap plan together cover most of your costs. There is no annual out-of-pocket cap because the plan is designed to minimize your costs, not limit them.

Costs vary widely by plan, region, and your age. A Medicare Advantage plan in one zip code might cost $0 per month with a $500 deductible, while the same plan in another zip code costs $50 per month with a $1,000 deductible. When you are comparing plans, look at the total cost you expect to pay in a year—premium plus deductible plus copays for your regular doctors and drugs—not just the monthly premium.

How to contact customer service and what to do if there is a problem

For questions about your AARP-UnitedHealthcare plan, you can call UnitedHealthcare's customer service line (the number is on your insurance card and plan documents) or AARP's member service line. UnitedHealthcare handles claims, coverage decisions, and network questions. AARP's line can help with plan comparisons, enrollment questions, and general Medicare information, but they do not process claims.

If you have a claim denied or a coverage dispute, start with UnitedHealthcare. Ask for a written explanation of the denial and the reason. If you disagree, you have the right to appeal. UnitedHealthcare will tell you how to file an appeal and what important date you have. You can also file a complaint with your state's insurance commissioner or with Medicare if you believe the plan violated a rule.

If you want to drop your AARP-UnitedHealthcare plan outside the open enrollment period, you can do so if you have a may have access to event—such as moving out of the service area, losing other coverage, or a significant change in income. Contact UnitedHealthcare or AARP to report the event and request a disenrollment form. You have 60 days from the event to submit it.

Frequently Asked Questions

Do I have to be an AARP member to buy an AARP-UnitedHealthcare plan?

No, but AARP members pay lower premiums. Non-members can buy the same plan at a higher cost. Since AARP membership costs $16 per year and the member discount is often $20 or more per month, many people find it worth joining just for the plan savings.

Can I switch from an AARP Medicare Advantage plan to a Medigap plan?

Yes, during the annual open enrollment period (October 15 to December 7). If you switch from Medicare Advantage to Medigap, you may have may provide issue rights, which means the Medigap plan cannot deny you or charge more based on health conditions. Check with the Medigap plan about these protections before you enroll.

What if my doctor is not in the AARP-UnitedHealthcare network?

For Medicare Advantage plans, you will pay more or may not be able to see that doctor. For Medigap plans, you can see any doctor who accepts Medicare, and the plan will help pay the costs. If keeping your current doctor is important, Medigap may be the better choice, though it costs more per month.

When can I change my AARP-UnitedHealthcare plan?

During the annual open enrollment period (October 15 to December 7), you can switch to a different AARP plan, drop AARP coverage, or move to another company's plan. If you have a may have access to event like moving or losing other coverage, you may be able to change plans outside this window.

How do I know what my prescriptions will cost under an AARP plan?

Check the plan's formulary on UnitedHealthcare's website or call the plan's customer service line with your medication list. The formulary shows which drugs are covered, what tier they are on (which determines your copay), and whether they need prior authorization. Costs vary by plan, so compare formularies when choosing between plans.