By: Kat Casna | August 14, 2019

N/A (Medicare Rating)

Types of Supplement Plans:

  • Plan A
  • Plan B
  • Plan C
  • Plan F
  • Plan G
  • Plan N

Providing health care coverage to more than 22 million people,1 Aetna is the third-largest health insurer in the United States. The company sells private medical, pharmacy, Medicare, Medicaid, and other insurance plans. Its Medicare products include Medicare Advantage (Part C), Medicare Supplement (Medigap), and Part D prescription drug plans.

In 2018, Aetna counted 775,000 members on its Medicare Supplement (Medigap) plans nationwide—a number that grew by 42,000 from the year before.2

If you’re looking for information about Aetna’s Medicare Supplement plans, you’ve come to the right place. We’ve reviewed the company and its plan offerings to give you an idea of what to expect in terms of the types of plans offered, benefits and coverage available, eligibility, and enrollment.

Aetna Medicare Supplement pros and cons


  • Strong financial rating
  • Additional features and benefits


  • Doesn't serve all states
  • Limited Medigap options

A detailed look

  • Strong financial rating: Rating companies give Aetna high marks for financial stability. Standard & Poor’s gave Aetna a financial strength rating of BBB3.
  • Additional features and benefits: Being an Aetna member comes with several perks like access to a nurse phone line—available 24/7—that can help you answer health care questions.
  • Doesn’t serve all states: Aetna sells Medigap plans in 44 states. If you live in Alaska, Connecticut, Hawaii, Maine, Massachusetts, Washington, or Washington, DC, you’ll need to pick another company.4
  • Limited Medigap options: Depending on where you live, Aetna lets you choose from about five to seven different Medigap plans (there are 10 total), which means several options are often left out, including one of the most popular: Plan C.5

Aetna Medicare Supplement: plan overview

Medicare Supplement plans help you pay for costs not covered by Original Medicare, including deductibles, copayments, and coinsurance. Because the benefits for Medigap plans are standardized by state and federal law, you won’t see benefits differ between companies for the same plan. What does vary, however, is which plans are available in specific areas and how much they cost.

In most states, Aetna sells Medigap plans A, B, F, G, and N. In some areas, Aetna also offers Plan C or the high-deductible version of Plan F.6 Note that the Centers for Medicare & Medicaid Services (CMS) are phasing out Plans C and F, although some beneficiaries can still enroll in one of these plans. Find out if you can still apply for Medicare Supplement Plans C and F.

Certain benefits are common to all these plans, such as the following services:

  • Part A hospital: Helps to pay for the daily coinsurance of inpatient hospital stays
  • Part B medical: Helps to pay the Part B coinsurance or copayment
  • Blood transfusion: Pays for the first three pints of blood per year

Plan A

Medicare Supplement Plan A provides basic coverage, paying for 100% of the costs for blood and hospice services. It also fully covers the Part A and Part B coinsurance and copayments.

Plan B

Plan B has the same benefits as Plan A plus coverage for the yearly Part A deductible ($1,364 in 2019).7

Plan C

Plan C is one of only two plans that offer “first dollar coverage,” meaning you won’t have to pay the Part A or Part B deductible with this plan. Plan C also covers 100% of the skilled nursing care coinsurance and 80% of foreign travel emergency care.

Plan F

One of the most popular Medicare Supplement plans, according to the Kaiser Family Foundation (KFF), is Plan F.8 It provides comprehensive coverage that helps pay for both the Part A and Part B deductibles and Part B excess charges. It also covers 100% of the coinsurance for skilled nursing care and 80% of emergency care while traveling overseas.

Plan F also comes in a high-deductible version, which Aetna sells in certain areas. This plan requires you to pay a $2,300 (in 2019)9 yearly deductible before the benefits kick in. Because your share of the costs are higher, high deductible Plan F may have lower premiums than other Medicare Supplement plans.

Plan G

The coverage for Plan G is similar to Plan F, but it doesn’t include the Part B deductible ($185 per year in 2019).10

Plan N

Under Part B coverage, the Medicare program establishes maximum rates for what it will pay for certain services. Some providers charge more than the maximum, leaving beneficiaries to pay these Part B excess charges. While some Medigap plans cover these charges, Plan N does not.

Aetna Medicare Supplement plan costs

Because your benefits for Medicare Supplement plans don’t change from company to company, the main difference between Aetna and other companies is the premiums it charges. Plan costs vary depending on where you live, so contact a licensed sales agent for the latest Medicare Supplement pricing.

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Aetna Medicare Supplement eligibility and enrollment

You can purchase an Aetna Medigap plan as long as you’re age 65 or older or you qualify for Medicare because you have a disability or end-stage renal disease (ESRD). You also must meet these criteria:

  • You have Original Medicare Part A and Part B
  • You live in the state where Aetna offers the plan you want

Aetna financial ratings

Aetna’s reviews from financial ratings companies are strong. Overall, the company gets reasonably high marks for its finances and stability, but they aren’t the highest possible scores. Here are the long-term senior debt ratings from four financial ratings organizations:

Standard & PoorsBBB (good)11
Moody's Investors ServiceBaa2 (moderate credit risk)12
Fitch RatingsN/A13
A.M. Best Companybbb (good)14

Ready to enroll in Medicare Supplement?

Not sure which type of Medicare coverage is right for you? We can help.

We suggest that you compare plans from several companies before deciding. A licensed sales agent can help you with this.

Get A Quote


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Aetna company comparisons

Want to know how Aetna compares to your other choices? We compared the company with several others so you can weigh their benefits, features, costs, and more. Check out the pages below to see the results:


1. Becker’s Hospital Review, “America’s Largest Health Insurers in 2018
2. Aetna, “Form 10-Q
3. Standard and Poors, “Aetna Inc.
4. Aetna, “Find Medicare Supplement Insurance Plans
5. Kaiser Family Foundation, “Medigap Enrollment Among New Medicare Beneficiaries: How Many 65-Year Olds Enroll In Plans With First-Dollar Coverage?
6. Aetna, “Find Medicare Supplement Insurance Plans
7. Medicare, “Medicare Costs at a Glance
8. Kaiser Family Foundation, “Medigap Enrollment and Consumer Protections Vary Across States
9. Medicare, “How to Compare Medigap Policies
10. Medicare, “Medicare Costs at a Glance
11. Standard and Poors, “Aetna Inc.
12. Moody’s, “Aetna Inc.
13. Fitch, “Aetna, Inc.
14. A.M. Best, “Aetna Inc.

Content on this site has not been reviewed or endorsed by the Centers for Medicare & Medicaid Services, the United States Government, any state Medicare agency, or any private insurance agency (collectively “Medicare System Providers”). is a DBA of Clear Link Technologies, LLC and is not affiliated with any Medicare System Providers.