Aetna plans are inexpensive and widely available. The company stands out for offering cheaper brand-name prescription drugs than most competitors in our analysis. In addition, about 78% of its plans have $0 premiums, and plans that charge monthly premiums are cheaper than average. Its quality ratings from the government are subpar, however, and competitors might offer friendlier copays for hospital stays. Its caps on out-of-pocket costs are also on the high side.
Kaiser Permanente Medicare Advantage plans are available in nine states and Washington, D.C. Kaiser uses an integrated HMO care model, so all providers are connected. The company earns great government quality ratings and gets very few customer complaints. But some members might find the network requirements of the HMO model frustrating, and competitors can offer cheaper plans.
Here’s a look at how Aetna and Kaiser Permanente Medicare Advantage compare.
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NerdWallet’s Medicare content, including articles, reviews and recommendations, is produced by a team of writers and editors who specialize in Medicare. Their work has appeared in The Associated Press, Washington Post, Nasdaq, MSN, MarketWatch, Yahoo! Finance and other national and regional media outlets. They have been cited in publications including Healthline, and appeared on NerdWallet's "Smart Money" podcast.
Aetna Medicare Advantage
Aetna offers cheaper out-of-pocket costs for brand-name prescription drugs than most competitors, but its government quality ratings aren’t as high as in previous years.
Pros
Low out-of-pocket costs for many brand-name prescription drugs.
78% of plans have $0 premiums.
Plans with monthly premiums are cheaper than average.
Cons
Below-average government quality ratings.
Copays for hospital stays can be pricey.
Higher-than-average caps on out-of-pocket costs.
Other factors to consider
Average government quality rating | 3.75 out of 5. |
Percent of plans with $0 premium | 78%. |
Average non-$0 premium | $40.65. |
Average maximum out-of-pocket spending cap (MOOP) | $7,451. |
Medicare Advantage enrollment | Over 4.2 million. |
Averages weighted by enrollment where relevant. | |
Aetna Medicare Advantage plan availability
» MORE: Read our full review of Aetna Medicare Advantage plans
Kaiser Permanente Medicare Advantage
Kaiser Permanente Medicare Advantage plans get strong government quality ratings, but competitors serve more states and might offer more flexible plan options.
Pros
Best quality ratings from CMS among the major Medicare Advantage companies.
Low annual caps on out-of-pocket costs.
Good customer complaint rates.
Cons
Available in only nine states and Washington, D.C.
Offers mostly HMO plans, so most members must work within Kaiser’s network of medical providers.
Competitors might offer cheaper plans.
Other factors to consider
Average government quality rating | 4.47 out of 5. |
Percent of plans with $0 premium | 54%. |
Average non-$0 premium | $72.43. |
Average maximum out-of-pocket spending cap (MOOP) | $4,660. |
Medicare Advantage enrollment | Nearly 2.1 million. |
Averages weighted by enrollment where relevant. | |
Kaiser Medicare Advantage plan availability
» MORE: Read our full review of Kaiser Permanente Medicare Advantage plans
Find the best Medicare Advantage plan
It’s important to do your research before selecting a Medicare Advantage plan for yourself. Here are some questions to consider asking:
What are the plan’s costs? Do you understand what the plan’s premium, deductibles, copays and/or coinsurance will be? Can you afford them?
Is your doctor in-network? If you have preferred medical providers, make sure they participate in the plan’s network.
Are your prescriptions covered? If you’re on medication, it’s crucial to understand how the plan covers it. What tier are your prescription drugs on, and are there any coverage rules that apply to them?
Is there dental coverage? Does the plan offer routine coverage for vision, dental and hearing needs?
Are there extras? Does the plan offer any extra benefits, such as fitness memberships, transportation benefits or meal delivery?
» MORE: Best Medicare Advantage plans
If you have additional questions about Medicare, visit Medicare.gov or call 800-MEDICARE (800-633-4227, TTY 877-486-2048).
Medicare Advantage review methodology
NerdWallet’s Medicare Advantage ratings are based on premiums, out-of-pocket costs, prescription drug coverage, quality data from the Centers for Medicare & Medicaid Services, consumer experience and more. We analyze and calculate ratings for every Medicare Advantage plan sold throughout the U.S. on a curved 5-point scale.
At the national level, we calculate ratings for companies as the average of their plans’ scores, weighted by enrollment.
NerdWallet’s editorial team analyzed companies covering about 87% of all Medicare Advantage beneficiaries in the United States. We reviewed 23 Medicare Advantage brands, with some insurance companies having more than one brand under their umbrella. (For example, Blue Cross Blue Shield includes the brands Anthem and Highmark.)
The Medicare Advantage marketplace is concentrated among just a handful of companies. In many places, one company serves more than half of the market. At the national level, NerdWallet’s reviews include each of the 10 largest brands by enrollment.
We research and analyze all commercial Medicare Advantage plans and publish reviews for selected companies. At the state level, we review at least one major insurer in every state where Medicare Advantage plans are sold, and we review both of the top two insurers in 40 of those 49 states. (Alaska doesn't offer Medicare Advantage plans.) We also look at online search volume to identify regional and other notable players in the space.
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 and full ratings methodology for Medicare Advantage.

