SeniorLiving.org’s Best Recommendations for Medicare Part D Plans
Humana is our top pick for Part D plans, thanks to its great customer service, membership perks, and nationwide availability.
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- Over 11,000 preferred pharmacies
- Available in all 50 states plus Washington D.C.
- Unique Feature: Coverage for more than 3,700 prescription drugs
- Over 27,000 preferred pharmacies
- Available in all 50 states plus U.S. territories
- Unique Feature: Offers Medigap, Part C, and Part D plans
- Up to 28,000 preferred pharmacies (varies by plan)
- Available in all 50 states plus U.S. territories
- Unique Feature: 24/7 customer support
- Health and wellness support
- Telehealth benefits
- Zero-dollar premium plans
- Large provider network
- Available in most states
- Up to 7 percent household discount
- 5 percent household discount offered in most states
- Variety of plans available
- Health and wellness benefits
Our team spent hours researching the best Medicare Part D plans and narrowed down the list to our top picks.
Our team spent hours researching the best Medicare Part D plans and narrowed down the list to our top picks.
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Prescription drugs aren’t getting any cheaper. If you’re taking medications, you know just how true that is. And if you’re looking for a way to reduce your medication costs, a Medicare Part D plan might suit your needs. It offers prescription drug coverage not covered under Original Medicare. With so many carriers on the market to choose from, we’ve narrowed down our list to six Medicare Part D carriers we recommend based on plan availability, customer service, CMS ratings, additional perks, and more. Humana is our top pick thanks to their excellent customer service.
Our Methodology
Picking the right Medicare Part D plan, also called a prescription drug plan (PDP), may seem overwhelming, with so many plans to choose from. Our mission is to provide you with the right information so you can make an informed decision based on your needs. Our team spent over 100 hours researching and comparing Part D plans. We looked at insurers across the nation while comparing prices, plan availability, ease of website navigation, overall customer satisfaction, CMS ratings, and perks for being a customer. All opinions and recommendations are developed independently by our team.
Why Trust Us
We’ve been researching Medicare and Part D plans for years, reviewing carriers to see how they adapt to changes in Medicare legislation. We also consult with Medicare and insurance experts for their insights and recommendations. We incorporate all of this research and feedback into our Medicare guides to ensure that we provide seniors and other Medicare beneficiaries with the most accurate, up-to-date information!
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1. Humana - Known for customer service and experience
What we like most
- Over 11,000 preferred pharmacies
- Available in all 50 states plus Washington D.C.
- Unique Feature: Coverage for more than 3,700 prescription drugs
HumanaOverview:Overview
Humana serves over 20 million customers and has been in business since 1961. The company is known for its excellent customer service, and ranked No. 1 for customer experience quality in Forrester’s 2024 U.S. Customer Experience Benchmark survey for the fourth year in a row.1 Humana offers two plans with $0 deductibles and copays for Tier 1 and Tier 2 drugs. The carrier keeps costs down by networking with Walmart and Sam’s Club. Humana has great mobile app features that let you check your policy and coverage or reorder medications. They also have a fitness app for those who want to stay active.
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Pros & Cons:Pros About Humana
- Low overall cost
- Easy-to-use website
- Over 3,700 prescription drugs covered
- $0 deductible plans available
- Large pharmacy network
Cons About Humana
- Humana has three separate mobile apps, which can be confusing
- Plans and coverage vary by location.
Our Hands-on Experience:Our Experience With Humana Part D
Humana has three distinct Part D plans to choose from, one more than Anthem and AARP. That said, plan availability varies by location. We looked for Part D plans in Miami, Florida, and all three plans were available. We had access to the $0 deductible Humana Premier Rx Plan and monthly premiums ranged from $41.20 to $132.30 across all plans, so there were options for Medicare beneficiaries on different budgets.
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However, one thing to consider is that all three plans received three-star ratings (i.e. Average) from the Centers for Medicare & Medicaid Services (CMS) for 2025. These ratings consider many important factors like the quality of customer service, overall member experience, accuracy of drug pricing, and how quickly members could get appointments. Though Anthem beat Humana’s CMS rating for 2025, Humana has historically received higher ratings than most other carriers, including Anthem and Cigna.
Humana’s Medicare Part D plans offer low overall costs, membership perks, and nationwide availability. If you travel often, take preferred generics, or enjoy mobile fitness apps, their plans may be worth considering. You may also qualify for a one-on-one, comprehensive review of the medications you take with a specialist through Humana’s Medication Therapy Management Program. This just goes to show that Humana cares about their customers’ well-being.
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Humana provides several other types of insurance for Medicare beneficiaries. You can check out our latest Humana Medigap review and Humana Medicare Advantage review for more information.
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2. Anthem - Known for online experience
What we like most
- Over 27,000 preferred pharmacies
- Available in all 50 states plus U.S. territories
- Unique Feature: Offers Medigap, Part C, and Part D plans
AnthemOverview:Overview
Anthem is part of the Blue Cross Blue Shield network, the second-largest health insurance company in the nation. The carrier earned high marks from us for their user-friendly plan comparison tools and straightforward website navigation. It was a breeze to research plans and compare benefits and pricing — and they receive bonus points for offering the ability to check medication coverage and pharmacy networks. Knowing what your Part D plan includes is crucial, and Anthem has you covered.
Pros & Cons:Pros About Anthem
- Intuitive website for stress-free plan shopping
- Robust resources for Medigap, Medicare Advantage, and Part D
- More than 62,000 in-network pharmacies and 27,000 preferred pharmacies
- Medication Therapy Management Program for eligible members
- Copays as low as $1 at preferred in-network pharmacies
- Senior Savings Insulin Program may be ideal for people with diabetes.
Cons About Anthem
- Coverage area limited to 14 states
- Premiums tend to be higher than other carriers
- Only has two stand-alone Part D plans
- Plans and coverage vary by location
Our Hands-on Experience:Our Experience With Anthem Part D
While coverage, deductibles, and premiums vary by location, Anthem only offers two Part D plans: Anthem MediBlue Rx Standard and Anthem MediBlue Rx Plus. The standard plan has a lower monthly premium and is generally recommended for those who take fewer medications (particularly Tiers 1 and 2), while the Plus plan has a higher premium and is recommended for those who take a wider range of medications (Tiers 1 through 5).
Did You Know? As of 2025, all Medicare plans have a $2,000 annual cap on what you pay out-of-pocket for covered prescription drugs.
We researched plans in Los Angeles, California, and were quoted $135.60 per month with a $590 annual deductible for the Standard plan and $164.90 per month with a $120 annual deductible for the Plus plan. Though we would have liked to see a $0 deductible plan like Humana offers, both plans still offer solid value. There’s not a huge difference in premiums between the Standard and Plus plans, so it may be worth upgrading to Plus for Medicare beneficiaries who want to enjoy a lower deductible and a wider range of coverage for name-brand and generic drugs. Even though Humana generally receives higher ratings for its Medicare Advantage and Part D plans, both of the plans available to us had 3.5-star CMS ratings for 2025 (tied with Wellcare for the highest CMS rating on this list).
If you live in a state where Anthem is a carrier, they may be a solid choice to explore. We were impressed with the online experience, enrollment tutorials, health and wellness resources, and medication research tools. If you’re weighing your options on a stand-alone prescription drug plan versus a Medicare Part C plan with drug coverage, check out our Anthem Medicare Advantage plans review for more details.
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3. Cigna - Known for membership perks
What we like most
- Up to 28,000 preferred pharmacies (varies by plan)
- Available in all 50 states plus U.S. territories
- Unique Feature: 24/7 customer support
CignaOverview:Overview
With more than 230 years in business and serving over 180 million customers, Cigna stands out among insurance carriers. Cigna offers Medicare Part D plans in 50 states and Washington, D.C. They have over 63,000 pharmacies and more than 3,000 medications as part of their formulary
With Cigna’s lower premiums, deductibles, and copays for Tier 1 and 2 drugs at preferred pharmacies, you may get a great price compared to Anthem. Cigna also offers excellent online perks and discounts to some members, such as savings on LASIK vision correction or certain yoga products and acupuncture, to name a few.
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Pros & Cons:Pros About Cigna
- Plans offered in all 50 states and Washington, D.C.
- Up to three stand-alone Part D plans
- Over 63,000 pharmacies to choose from
- Easy-to-navigate website
- Over 3,000 common medications on preferred formulary
- 24/7 customer support available
- Online perks and discounts
Cons About Cigna
- Higher premiums than some carriers
- Plans and coverage vary by location
Our Hands-on Experience:Our Experience With Cigna Part D
Cigna offers three stand-alone Part D plans: Cigna Healthcare Saver Rx, Cigna Healthcare Assurance Rx, and Cigna Healthcare Extra Rx. We researched plans available in Chicago, Illinois, and we appreciated that all the plans offered ample benefits at different price points. The quoted monthly premiums were $16.60 (Saver), $65.40 (Assurance), and $101.60 (Extra). Cigna makes it easy to compare each plan based on what it offers.
FYI: Thanks to the Inflation Reduction Act, you may be eligible for the Medicare Prescription Payment Plan, which allows Medicare beneficiaries to spread out the cost of their prescription drugs.
While all three plans have a CMS rating of 2.5 stars for 2025, we liked that Cigna put this information just below the name of each plan. With most other carriers on this list, we had to look into plan documentation or dig up the CMS reports to get the star ratings. So, even though Anthem and Humana got higher overall ratings, we appreciate Cigna’s transparency.
Cigna is one of our recommendations for Medicare Part D carriers because of their pricing, plan coverage, and availability. You may be able to choose from three Part D plans, ranging in monthly premium prices and deductible costs. Cigna’s plans offer a $0 copay for Tier 1 preferred generic medications when you choose mail order from a pharmacy with preferred cost-sharing. That can add up to significant savings in money and time! Cigna also earns points for extras, such as ease of website navigation and added customer perks.
Check out our Cigna Medigap review and Cigna Medicare Advantage review for more details on Cigna’s other insurance offerings.
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4. Wellcare - Known for plan variety
What we like most
- Health and wellness support
- Telehealth benefits
- Zero-dollar premium plans
Overview:Overview
With three plans varying in coverage and cost levels, Wellcare’s Part D plans are customized to fit various budgetary and medication needs. Their low-premium Value Script PDP may be ideal for those who don’t take much medication, and if they do, it’s generic. Wellcare’s Classic PDP is a middle-of-the-road Part D plan. For those needing more comprehensive coverage, Wellcare’s Medicare Rx Value Plus may provide greater coverage for non-preferred and specialty drugs. Wellcare comes with an extensive network of over 60,000 pharmacies that offer preferred retail cost-sharing.
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Pros & Cons:Pros About Wellcare
- You may have three prescription drug plans to choose from.
- Their copays are as low as $0 at preferred retail pharmacies.
- Their copays are as low as $0 at preferred retail pharmacies. Their preferred pharmacies include CVS, Walgreens, and most grocery chains.
- They include plans designed for those eligible for Extra Help.
- They offer over 60,000 in-network pharmacies.
Cons About Wellcare
- Lower-cost preferred pharmacies may not be available in rural areas.
- Plans and coverage vary by location.
Our Hands-on Experience:Our Experience With Wellcare Part D
We researched Wellcare’s PDPs in New York City and found that all three plans were available. We were quoted $38.70 per month for Value Script, $55.30 for Wellcare Classic, and $126.80 for Medicare Rx Value Plus. Though prices can vary a lot by location, these were higher than comparable plans from Cigna, though not quite as high as either Anthem plan. Much like Anthem’s Part D plans, all three Wellcare PDPs received 3.5-star ratings from CMS.
As one of the largest managed care organizations across the United States, Wellcare’s plan offerings, including their tiered Medicare Part D plans, are noteworthy. Their large pharmacy network rivals health care giants like Aetna and Cigna. Wellcare also delivers Medicare Advantage plans complete with dental, hearing, and vision benefits.
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Check out our review of Wellcare Medicare Advantage plans to learn more about their insurance offerings.
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5. Aetna - Known for pharmacy network
What we like most
- Large provider network
- Available in most states
- Up to 7 percent household discount
Overview:Overview
Aetna serves more than 39 million people and has been in business for over 170 years, making them an industry mainstay. Aetna is now a subsidiary of CVS and has over 65,000 pharmacies in their network for accessible nationwide coverage. They also offer a wide range of coverage options, including Medicare Part D, Medigap, and comprehensive coverage plans.
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Pros & Cons:Pros About Aetna
- Low monthly rates, depending on location
- $0 deductibles available on some prescription drug plans
- Easy-to-use website
- Plans available in all 50 states and Washington, D.C.
- 24/7 customer support
Cons About Aetna
- Higher premium for SilverScript Plus PDP
- Plans and coverage vary by location
Our Hands-on Experience:Our Experience With Aetna Part D
Like Humana and Cigna, Aetna has three standalone Part D plans: SilverScript SmartSaver, SilverScript Choice, and SilverScript Plus. We researched premiums and benefits for applicants in Atlanta, Georgia, and got competitive quotes for all three plans. The monthly premium for SmartSaver was $15.70 per month, Choice was $52.60 per month, and Plus was $100.30 per month.
Like Cigna, Aetna shows the CMS star ratings of all plans upfront so you don’t have to go hunting for the information — something we really appreciate. All three plans for 2025 have three-star ratings, similar to the plans available through Humana. We also liked that all of Aetna’s plans were relatively affordable compared to carriers like AARP and Anthem. This means Aetna may be a great option for seniors and other Medicare beneficiaries who don’t want to pay a fortune for a PDP, but still want ample coverage for their prescription medications.
We feel Aetna may be a good option for your Medicare Part D plan if you are on a fixed income or looking for an extensive pharmacy selection because you travel frequently. It may also be a great choice if you currently take little to no medication but are looking for an affordable PDP so you won’t pay the late enrollment penalty down the line.
See our Aetna Medigap review and review of Aetna’s Medicare Advantage plans for more information.
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6. AARP - Known for customer service
What we like most
- 5 percent household discount offered in most states
- Variety of plans available
- Health and wellness benefits
AARPOverview:Overview
AARP’s MedicareRx prescription drug program from UnitedHealthcare may be another excellent option to consider for your Medicare Part D plan. UnitedHealthcare has been in business since 1977, serves more than 26 million people, and, in 1997, teamed up with AARP for better Medicare prescription drug coverage. AARP has great ratings, and you may be able to save even more by using their preferred partner pharmacies, Walgreens and Duane Reade. You can also review your policy and manage prescriptions from one mobile app, plus access a plethora of educational materials from their website.
» Useful Resource: A guide to AARP memberships
Pros & Cons:Pros About AARP
- Educational website
- Extensive network of preferred pharmacies
- High customer service star rating
- Convenient UnitedHealthcare mobile app
Cons About AARP
- Not available in all locations
- Higher premiums than average
- Plans and coverage vary by location.
Our Hands-on Experience:Our Experience With AARP Part D
Like Anthem, AARP only offers two stand-alone Part D plans: Medicare Rx Saver from UHC and Medicare Rx Preferred from UHC. One downside to these plans is that, unlike most other carriers on this list, there are very few instances where the policyholder can enjoy $0 copays. We researched premiums and benefits in Houston, Texas, and were quoted $76.30 per month for the Saver plan and $89.20 per month for the Preferred plan.
Considering that the Preferred plan has a $0 annual deductible (compared to $590 with the Saver plan) and lower copays in most instances, we think the Preferred could offer a better value to most Medicare beneficiaries, even if you only take one or two medications. That said, AARP’s premiums are still a little high, especially when taking all the various copays into consideration. It’s important to note that AARP doesn’t require you to become an AARP member to enroll in a Part D or Medicare Advantage plan — this requirement only applies to AARP’s Medigap plans. However, we still think it’s worth the extra $12 per year for all the additional resources and senior discounts.
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If you are an older adult looking for a Medicare Part D carrier, you may consider AARP prescription drug plans from UnitedHealthcare. Although the AARP MedicareRx Preferred PDP may have higher monthly premiums, it also has a $0 deductible across drug tiers, which may be worth the price in our book.
Check out our UnitedHealthcare review and AARP Medicare Advantage review for more information.
How to Choose a Medicare Part D Plan
When you’re choosing your Medicare Part D plan, it is important to keep the following in mind:
- The carrier’s drug formulary compared to your current medications
- Your need for a large network of pharmacies if you travel frequently
- Whether you qualify for Medicare Savings Programs
- Price in premiums compared to deductibles and copays
Pro Tip: Check out SHIP, a state health insurance assistance program that offers free, unbiased, one-on-one, and local Medicare plan counseling.
How Much Do Medicare Part D Plans Cost?
Medicare Part D plans vary in costs depending on location and plan. Most Medicare Part D carriers give you a few plans to choose from, ranging from basic to premium coverage, which can be deducted from your Social Security check for added convenience.
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The average base beneficiary premium is $36.78, and you may pay extra based on your income. The good news is that the annual deductible will not exceed $590 in 2025. Another major change to Part D coverage in 2025 is the elimination of the donut hole, which previously increased your out-of-pocket costs for prescription drugs once you and Medicare Part D collectively spent a set amount for the year.
Now, you pay 100 percent of the cost during your deductible phase (assuming your plan has a deductible), after which time the initial coverage phase begins. This is when you share the cost of covered drugs with your Medicare Part D carrier. If and when you’ve spent $2,000 out-of-pocket (OOP) on prescription medication in 2025, the catastrophic phase begins. This means you won’t have to pay anything else out-of-pocket for covered prescription drugs for the remainder of the calendar year — your Part D carrier will foot the bill. Keep in mind that this new OOP limit goes into effect in 2025. The annual OOP limit for 2024 is $8,000.
When to Enroll in a Medicare Part D Plan
It’s best to start shopping early. You may enroll up to three months before your 65th birth month, and you have until three months after. Remember to check your carrier’s drug formulary every year to compare it with competitors and your current medications, as formularies can change. You may be able to change your Medicare Part D plan during open enrollment, which is from Oct. 15 to Dec. 7 every year. You also will have 63 days after moving to enroll in a different plan based on your location.
Pro Tip: For an in-depth look at Medicare, including when you can enroll in or switch your Part D prescription drug plan, head over to our Medicare enrollment guide.
Frequently Asked Questions About Part D Plans
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Is Medicare Part D worth it?
You’ll need to discuss your medical needs with your doctor and consider your current out-of-pocket costs for prescription drugs to determine if Part D is worth it. That said, if you take at least one prescription medication and anticipate needing more in the future, a Part D plan could offer the coverage you need.
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When should I change my Part D plan?
You should try to change your Part D plan during open enrollment periods to avoid late enrollment penalties or lapses in coverage.
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What drugs are covered by Medicare Part D?
Regardless of the carrier, Medicare Part D is required to cover at least two drugs from most categories and all drugs in specific categories like antidepressants, antipsychotic medications, and anti-cancer drugs not covered by Medicare Part B (among others).
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What is the Part D late enrollment penalty?
The late enrollment penalty for Part D is one percent of the average beneficiary premium multiplied by the number of months you went without coverage. The late enrollment penalty is added to your monthly premiums once you enroll.
Humana. (2022). Humana ranked No. 1 among health insurers for Customer Experience.
Centers for Medicare & Medicaid Services. (2020). CENTER FOR MEDICARE.