Medicare Advantage

Aetna Medicare Advantage in Washington for 2027: 8 Plans, County by County

OLYMPIA, Wash. — For the 2027 plan year, Aetna (grouped by the Centers for Medicare & Medicaid Services as Aetna (CVS Health)) is offering 8 Medicare Advantage plans across Washington, according to the CMS Medicare Advantage Landscape Source Files. Those plans are listed statewide, but Medicare Advantage is sold county by county, so a plan on Aetna's Washington list may or may not be available where you live. This explainer, published by an independent Medicare education site that is not the government and not affiliated with Aetna or any other carrier, walks through what the CMS files show and how to check your own ZIP code.

2027 plan lineupWashington

What is Aetna offering across Washington for 2027?

Aetna has 8 Medicare Advantage plans in Washington for the 2027 plan year, according to the CMS Landscape files. The lineup breaks down as 4 HMO plans and 4 PPO plans. Six of the 8 plans include Part D prescription drug coverage, and 2 do not.

On the Special Needs Plan side, Aetna lists 1 Chronic Condition SNP (C-SNP) in Washington for 2027, 0 Dual-Eligible SNPs (D-SNPs) and 0 Institutional SNPs (I-SNPs). For context, 14 other carriers are also offering Medicare Advantage plans in Washington for 2027, and the combined statewide total across all carriers is 115 plans. The table on this page shows Aetna's Washington plans individually; the summary here is drawn from the same CMS data.

Which Aetna Medicare Advantage plans reach the most Washington counties in 2027?

Among Aetna's 2027 Washington lineup, the plans with the widest county reach are Aetna Medicare Eagle (HMO), Aetna Medicare Eagle (PPO) and Aetna Medicare Signature (PPO), each offered in 6 counties in Washington. Aetna Medicare Chronic Care (HMO C-SNP), Aetna Medicare Enhanced (PPO) and Aetna Medicare Signature (HMO) are each offered in 5 counties, with a second Aetna Medicare Enhanced (PPO) and a second Aetna Medicare Signature (HMO) each offered in 1 county.

"Widest reach" simply means how many Washington counties list the plan on the CMS file. It is not a quality ranking and does not say anything about cost, benefits, networks or star ratings. The full county-by-county breakout is in the table on this page.

What is new or not returning for Aetna in Washington for 2027?

Aetna has 2 plans that are new for 2027 in Washington and 1 plan that is not returning from 2026, based on the CMS Landscape files. The two new entries flagged in the data are Aetna Medicare Chronic Care (HMO C-SNP), a Chronic Condition SNP, and Aetna Medicare Eagle (HMO).

The data also shows one renaming: Aetna Medicare Signature (PPO) is listed as the renamed version of what was called Aetna Medicare Signature Extra (PPO). A rename is not the same as a new plan, but the plan name on your mail, member ID card or Medicare.gov search results may look different than it did last year. If you are currently in an Aetna plan, read the Annual Notice of Change (ANOC) Aetna sends in the fall; it will tell you whether your specific plan is continuing, renamed or ending for 2027.

How do I check whether an Aetna plan is offered in my Washington county and covers my doctors and prescriptions?

Because Medicare Advantage is sold county by county, the only reliable way to see which Aetna plans are actually available at your address is to run your ZIP code through the Medicare Plan Finder at medicare.gov or to call 1-800-MEDICARE (TTY 1-877-486-2048), available 24 hours a day, 7 days a week. A plan on Aetna's statewide list for Washington may not appear in your county at all.

Once you see the plans available where you live, check three things for each one before you decide:

• Doctors and hospitals: confirm with Aetna's provider directory, or by calling the providers' offices, that they are in-network for the specific plan and 2027 plan year.
• Prescriptions: enter each drug, dose and pharmacy into Plan Finder to see the plan's formulary and cost-sharing.
• Plan rules: read the plan's Evidence of Coverage (EOC) for referral, prior authorization and out-of-network rules.

This site does not publish premiums, copays, deductibles, benefits, networks or star ratings for any plan. Those details come directly from Medicare.gov, 1-800-MEDICARE, or the plan's own documents from Aetna.

What should Washington residents do before December 7, 2026?

The Annual Enrollment Period for 2027 coverage runs October 15 – December 7, 2026, and anything you choose in that window takes effect January 1, 2027. There is no advantage to waiting until the last day; most people find it easier to work through their options earlier in the window.

A simple checklist for Washington residents considering Aetna or any other carrier: 1. Read the ANOC from your current plan (mailed in the fall) to see what changes for 2027. 2. Make a list of your doctors, hospitals, pharmacies and prescriptions. 3. Run your ZIP code on medicare.gov to see every 2027 plan available in your county, including Aetna's. 4. Compare the specific plans on the details that matter to you — not on brand familiarity alone. 5. Enroll, change or stay put by December 7, 2026.

Where can Washington residents get free help comparing 2027 plans?

Two free, official resources are available to every Washington resident with Medicare. Medicare.gov hosts the Plan Finder, which shows every 2027 Medicare Advantage plan available at your address, from Aetna and the 14 other carriers in Washington. And 1-800-MEDICARE (TTY 1-877-486-2048) is staffed 24 hours a day, 7 days a week, by representatives who can walk you through enrollment questions.

Neither resource will try to sell you a plan. Both will show you the full field, which is the point: with 115 Medicare Advantage plans in Washington for 2027 across 15 carriers, the comparison is worth doing on your own terms.