The bottom line: AARP Medicare Rx plans from UnitedHealthcare are widely available, and the higher-end Medicare Rx Preferred plan costs less than major competitors’ similar plans. But AARP/UHC’s 2025 star ratings are a little below average, and high premiums for the Medicare Rx Saver plan make it a less competitive option.
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AARP Medicare Part D pros and cons
Pros
- AARP Medicare Rx Preferred premiums: AARP’s higher-end Medicare Rx Preferred plan costs less than major competitors’ high-end plans.
- Simpler plan options: With one lower-cost and one higher-end option, AARP’s Medicare Rx plan choices are easier to navigate in 2025.
Cons
- AARP Medicare Rx Saver premiums: AARP’s lower-cost Medicare Rx Saver plan is considerably more expensive than similar plans from most major companies.
- Medication management: AARP Medicare Rx plans get below-average ratings for helping members fill their prescriptions and manage their drugs.
- $0-copay options: Only the most expensive AARP Medicare Rx plan has any $0-copay options.
Compare against other providers
» More options in our roundup of the best Medicare Part D plans
Compare against other providers
» More options in our roundup of the best Medicare Part D plans
Our full review
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AARP Medicare Rx star ratings
Average Part D star rating, weighted by enrollment: 2.86 stars
AARP Medicare Part D plans from UnitedHealthcare get an average star rating of 2.86 stars from the Centers for Medicare & Medicaid Services (CMS) in 2025, weighted by enrollment. For comparison, the weighted average star rating for all stand-alone Part D plans is 3.11 stars.
CMS rates Medicare Part D plans on 12 quality measures. (You can find definitions for each of these factors in the CMS Star Ratings Technical Notes.)
These ratings use a 5-point scale, where 5 is the best and 1 is the worst. The agency bases its ratings on drug plans’ quality of service and customer experiences, and ratings are updated annually.
Medicare star ratings are typically released once per year, but CMS recalculated its 2025 star ratings for AARP/UnitedHealthcare in December 2024. Pursuant to a court order, CMS removed disputed data from the calculations. NerdWallet has updated this review accordingly.
» MORE: Medicare star ratings: How they can help you choose a plan
AARP Medicare Part D prescription drug plans
There are two AARP Medicare Rx Part D prescription drug plan options available from UnitedHealthcare in 2025:
AARP Medicare Rx Saver: According to AARP and UnitedHealthcare, this plan is a good fit if you receive Medicare Extra Help subsidies or “want a robust pharmacy network.”
AARP Medicare Rx Preferred: According to AARP and UnitedHealthcare, this plan is a good fit if you “want our most extensive drug coverage and access to a broad pharmacy network.”
Medicare beneficiaries with Original Medicare (Part A and/or Part B) can purchase a Medicare Part D plan for prescription drug coverage. Part D plans are sold by private insurance companies. The costs and coverage can vary significantly, so it’s important to compare options.
AARP Medicare Rx Part D prescription drug plans are insured by UnitedHealthcare. Nearly 3.6 million Medicare beneficiaries have AARP Medicare Rx Part D plans from UnitedHealthcare as of March 2025.
More Nerdy Perspective
“Some AARP Medicare Rx plans are stronger options than others in 2025. For higher-coverage plans, the AARP Medicare Rx Preferred plan could be a better value than some competitors’ pricier plans. But the Medicare Rx Saver plan isn’t as competitively priced among 2025’s lower-cost options. "But remember, the most important thing to know when choosing a Medicare Part D plan is whether and how your prescription drugs are covered. Confirm that your drugs are included on the plan's formulary with out-of-pocket costs you can afford."
AARP Medicare Part D cost
AARP Medicare Rx premiums and deductibles
Here are the 2025 premiums and deductibles for AARP’s stand-alone Medicare Part D prescription drug plans:
Plan | Pricing |
|---|---|
AARP Medicare Rx Saver from UHC | Monthly premiums:
Annual deductible: $590. |
AARP Medicare Rx Preferred from UHC (50 U.S. states and Washington, D.C.) | Monthly premiums:
Annual deductible: $0. |
AARP Medicare Rx Preferred from UHC (American Samoa, Guam, Northern Mariana Islands, Puerto Rico and U.S. Virgin Islands) | Monthly premiums:
Annual deductible: $590. |
» If you're concerned about affording Medicare Part D, look into Medicare Extra Help.
$0-deductible options
The AARP Medicare Rx Preferred plan has no deductible for all covered drugs in U.S. states and Washington, D.C.. The plan has a deductible of $590 in American Samoa, Guam, the Northern Mariana Islands, Puerto Rico and the U.S. Virgin Islands.
The AARP Medicare Rx Saver plan has a $590 deductible for all covered drugs.
$0-copay options
AARP Medicare Part D plans have relatively few $0-copay options in 2025.
The Medicare Rx Preferred plan has $0 copays for a 90-day supply of drugs on Tiers 1-2 when obtained from a preferred mail-order pharmacy. Drugs from in-person pharmacies, non-preferred pharmacies or on higher tiers all have coinsurance or copay requirements.
There are no $0-copay tiers for the Medicare Rx Saver plan.
Copay vs. coinsurance requirements
You’ll want to check whether you’ll pay a copay or coinsurance for your medications. Copays are set dollar amounts, so it’s easy to see what you’ll pay. Coinsurance is a percentage of the price for your medications, so coinsurance requirements can be less predictable and more expensive.
For 2025, the tier at which AARP Medicare Rx plans start requiring coinsurance rather than copays varies depending on plan and, in some cases, location:
The AARP Medicare Rx Saver plan has copays for Tiers 1-2 and coinsurance for Tiers 3-5.
In the 50 states and Washington, D.C., the AARP Medicare Rx Preferred plan has copays for Tiers 1-3 and coinsurance for Tiers 4-5.
In American Samoa, Guam, the Northern Mariana Islands, Puerto Rico and the U.S. Virgin Islands, the AARP Medicare Rx Preferred plan has a 25% coinsurance for Tiers 1-5.
You can enter your medications and pharmacy information on UnitedHealthcare’s website to see which drugs are covered and review your estimated costs with different plan options.
» MORE: How much does Medicare Part D cost?
AARP Medicare Part D service area
Stand-alone AARP Medicare Part D prescription drug plans are available from UnitedHealthcare in all 50 states, Washington, D.C., and five U.S. territories: American Samoa, Guam, the Northern Mariana Islands, Puerto Rico and the U.S. Virgin Islands.
All U.S. states and Washington, D.C., have both the AARP Medicare Rx Saver and AARP Medicare Rx Preferred plans. Only the AARP Medicare Rx Preferred plan is available in the U.S. territories.
About AARP
AARP is a nonprofit interest group and advocacy organization. It advocates for local, state and national policies on behalf of older Americans. AARP members can access benefits through the organization, including discounts on products and services.
About UnitedHealthcare
UnitedHealthcare is part of UnitedHealth Group, which is headquartered in Eden Prairie, Minnesota. It's the largest health insurance company in the U.S. The company offers individual- and employer-based health insurance plans, Medicare and Medicaid plans, dental and vision plans, and other types of supplemental insurance.
Read the NerdWallet reviews of these other UnitedHealthcare and AARP Medicare offerings:
AARP Medicare Supplement (Medigap) from UnitedHealthcare.
Read the NerdWallet reviews of these other AARP insurance products:
Compare Medicare Part D companies
Get more information below about some of the major Medicare Part D companies. These insurers offer plans in most states, but specifics may vary depending on your location.
Find the right Medicare Part D prescription drug plan
The interactive tool on Medicare.gov can help you find a Medicare Part D plan that covers your prescriptions. It also helps you compare costs among Medicare Part D and Medicare Advantage plans available to you.
Here are some things to keep in mind when comparing plans:
Check the formulary: Make sure the medicines you currently take are covered. Talk to your health care providers about what medications to look for. You might also also want to check for possible alternatives and/or drugs you think you might need in the future.
Look for plan changes: Formularies (lists of covered drugs) change frequently. Your insurer should send you a Notice of Plan Change when the formulary changes. Read that document carefully.
Check the pharmacy network: Most Medicare Part D plans have networks of lower-cost pharmacies. Check to see if the plan's pharmacies are convenient for you. Also, compare prices for using mail order.
You can switch plans during Medicare's open enrollment period, Oct. 15 to Dec. 7. Changes go into effect on the following Jan. 1.
If you have additional questions about Medicare, visit Medicare.gov or call 800-MEDICARE (800-633-4227, TTY 877-486-2048).
Best for Member satisfaction
- Medicare Rx Preferred plan is less expensive than competing high-end plans.
- Simplified plan choices.
- Medicare Rx Saver plan is pricey for a lower-end plan.
- Below-average ratings for medication management.
- Only the higher-end Preferred plan has $0-copay options.
Article sources
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.
- 1.Centers for Medicare & Medicaid Services. 2025 Star Ratings Data Tables. Accessed Apr 15, 2025.
- 2.Centers for Medicare & Medicaid Services. Medicare 2025 Part C & D Star Ratings Technical Notes. Accessed Apr 15, 2025.
- 3.Centers for Medicare & Medicaid Services. Fact Sheet 2025 Medicare Advantage and Part D Star Ratings. Accessed Apr 15, 2025.
- 4.UnitedHealthcare. Compare Medicare Part D Prescription Drug Plans. Accessed Apr 15, 2025.
- 5.AARP. Medicare Part D Prescription Drug Plans. Accessed Apr 15, 2025.
- 6.Centers for Medicare & Medicaid Services. Monthly Report by Contract. Accessed Apr 15, 2025.
- 7.Centers for Medicare & Medicaid Services. CY2025_Landscape_202412. Accessed Apr 15, 2025.
Medicare Part D plan review methodology
NerdWallet’s Medicare Part D reviews are based on ratings data from the Centers for Medicare & Medicaid Services (CMS), pricing, cost-sharing requirements, formulary design, consumer experience and more.
NerdWallet reviewed eight Medicare Part D insurance companies based on highest enrollment and greatest online search volume. Together, these eight companies cover about 92% of Medicare beneficiaries with stand-alone Medicare Part D plans, according to CMS data. We review at least five major Medicare Part D companies in every state in the United States.
These reviews are a guide, but we encourage you to shop around and compare several plans to find the best coverage and rate for you. NerdWallet does not receive compensation for any reviews. Read our editorial guidelines for additional information.
Compare Medicare Part D Plans
Insurance company | CMS star rating | Out-of-pocket costs | Member experience | Learn more |
|---|---|---|---|---|
BEST FOR $0 PREMIUMS | (855) 432-0512 / TTY 711 M-F 9AM-9PM, Sat 10AM-6PM ETSpeak to a licensed insurance agent on askchapter.orgon NerdWallet | |||
(855) 432-0512 / TTY 711 M-F 9AM-9PM, Sat 10AM-6PM ETSpeak to a licensed insurance agent on askchapter.orgon NerdWallet | 3.50 | 3.50/5 | Varies | 3.0 (Average) |
BEST FOR MEMBER EXPERIENCE | (855) 432-0512 / TTY 711 M-F 9AM-9PM, Sat 10AM-6PM ETSpeak to a licensed insurance agent on askchapter.orgon NerdWallet | |||
(855) 432-0512 / TTY 711 M-F 9AM-9PM, Sat 10AM-6PM ETSpeak to a licensed insurance agent on askchapter.orgon NerdWallet | 3.49 | 3.49/5 | Varies | 4.46 (Above average) |
(855) 432-0512 / TTY 711 M-F 9AM-9PM, Sat 10AM-6PM ETSpeak to a licensed insurance agent on askchapter.orgon NerdWallet | ||||
 (855) 432-0512 / TTY 711 M-F 9AM-9PM, Sat 10AM-6PM ETSpeak to a licensed insurance agent on askchapter.orgon NerdWallet | 3.25 | 3.25/5 | Higher than average | 3.0 (Average) |
(855) 432-0512 / TTY 711 M-F 9AM-9PM, Sat 10AM-6PM ETSpeak to a licensed insurance agent on askchapter.orgon NerdWallet | ||||
(855) 432-0512 / TTY 711 M-F 9AM-9PM, Sat 10AM-6PM ETSpeak to a licensed insurance agent on askchapter.orgon NerdWallet | 2.85 | 2.85/5 | Average | 2.87 (Average) |