Medicare Advantage

Anthem's 2027 Medicare Advantage plans in Seattle: three HMO D-SNPs, all new

SEATTLE — Fall 2026. If you have an Anthem Medicare Advantage plan in Seattle, or you are considering one for next year, the lineup looks different heading into 2027. According to the CMS Medicare Advantage Landscape Source File for the coming plan year, Anthem — which CMS groups under Elevance Health (Anthem) — will offer three Medicare Advantage plans in King County, the county Seattle sits in. All three are new for 2027, and the two Anthem plans sold here in 2026 are not returning.

That is a notable turnover for one carrier, and it is the kind of change the Annual Notice of Change (ANOC) is designed to flag. The Annual Enrollment Period runs October 15 through December 7, 2026, and any choice you make in that window takes effect January 1, 2027.

What Anthem is offering in King County for 2027

The table below lists every Anthem plan available in King County for 2027. All three are HMO D-SNPs — a type of Medicare Advantage plan limited to people who qualify for both Medicare and Medicaid — and all three include Part D prescription drug coverage. In alphabetical order, they are:

• Wellpoint Dual Advantage (HMO D-SNP) — new for 2027
• Wellpoint Dual Advantage Plus (HMO D-SNP) — new for 2027
• Wellpoint Full Dual Advantage (HMO D-SNP) — new for 2027

Anthem is not offering any general-enrollment HMO or PPO plans in King County for 2027, nor any Chronic Condition SNPs (C-SNPs) or Institutional SNPs (I-SNPs), based on the CMS Landscape file. If you do not qualify for Medicaid, these particular plans will not be an option, and you would look to other carriers in the county.

What is new, and what is not returning

For 2027 in King County, Anthem has:

• 3 new plans (listed above)
• 2 plans not returning from 2026
• 0 renamed plans

If you are enrolled in an Anthem plan today, your Annual Notice of Change — mailed in September — spells out what is happening to your specific plan, including whether it is ending and what, if anything, your coverage would switch to. If a plan is not returning, you have time during AEP to pick a new plan, or you can let your coverage default to Original Medicare.

How Anthem fits into the broader Seattle picture

Seattle is in King County, where the CMS Landscape file shows 59 Medicare Advantage plans from 11 carriers for 2027. Anthem is one of those carriers. The other ten offer a mix of HMO, PPO, and Special Needs Plans — so if an Anthem D-SNP is not the right fit, there is a wide field to compare.

MyMedicarePlans.org is independent and is not Anthem or any other insurer. We publish availability counts from public CMS data; plan details themselves come from each carrier.

How to check a plan against your doctors and drugs before December 7

Before you enroll in anything — Anthem or otherwise — it is worth running the plan through Medicare Plan Finder. Here is a simple sequence:

1. Go to medicare.gov/plan-compare and enter your ZIP code and the drugs you take (names, doses, and how often). 2. Add your preferred pharmacies. Costs for the same drug can vary by pharmacy within a plan. 3. Open each plan's provider directory on the carrier's own site, or call the plan, to confirm your doctors and hospitals are in network for 2027. Networks can change year to year. 4. Read the Summary of Benefits and the Evidence of Coverage for anything you depend on — specialists, therapy, durable medical equipment, transportation. 5. If you qualify for both Medicare and Medicaid, confirm the D-SNP's rules for cost sharing and extra benefits with the plan directly.

You can also call 1-800-MEDICARE (1-800-633-4227), 24 hours a day, 7 days a week, for help comparing.

A few 2027 program facts worth knowing

These apply to Part D drug coverage inside any Medicare Advantage plan that includes drugs:

• The Part D out-of-pocket cap rises to $2,400 in 2027 (it is $2,100 in 2026).
• The Part D maximum deductible is $700 in 2027 (it is $615 in 2026).
• The Part D national base beneficiary premium for 2027 is $41.33 — this is a formula input CMS uses, not what any specific plan charges.
• The 2027 Part B standard premium, Part B deductible, and IRMAA income brackets have not yet been announced; CMS typically publishes them later in the fall.

The coverage gap (the old "donut hole") is gone — Part D now has three phases. And the Medicare Prescription Payment Plan lets you spread drug costs across the year in monthly amounts if that helps with cash flow.