2026 Medicare Special Needs Plans in King County, WA
Last update: . Enrollment data updated: June 13, 2026
King County, WA has 31 Medicare Special Needs Plans available in 2026. These plans serve approximately 41,937 beneficiaries, and roughly 35% achieve 4-star ratings or higher based on CMS data.
Most beneficiaries have access to several types of Medicare coverage beyond SNP plans. Visit Medicare Options in King County, WA to compare other coverage categories available in your area.
D-SNP Plans (Dual Eligible Special Needs Plans)
Dual Eligible Special Needs Plans (D-SNPs) in King County are Medicare Advantage plans for individuals eligible for both Medicare and Medicaid.
- Total D-SNP Plans: 24
- Average Monthly Premium: $6.03/mo
- Beneficiaries Enrolled: 37,566
- $0 Premium Plans: 9
- Zero Cost Plans: 17
- Top D-SNP by Enrollment: UHC Dual Complete WA-S2 (D-SNP) — 10,694 enrollees
- Plans without Drug Coverage: 0
What is the most popular D-SNP plan in King County?
UHC Dual Complete WA-S2 (D-SNP) is the top D-SNP in King County, with 10,694 enrollees.
What is the total number of D-SNP plans in King County?
There are 24 D-SNP plans in 2026, covering 37,566 enrollees.
I-SNP Plans (Institutional Special Needs Plans)
Institutional Special Needs Plans (I-SNPs) are Medicare Advantage plans for individuals in long-term or institutional care settings. Plan availability varies by county.
- Total I-SNP Plans: 5
- Average Monthly Premium: $19.44/mo
- Beneficiaries Enrolled: 829
- $0 Premium Plans: 0
- Zero Cost Plans:
- Top I-SNP by Enrollment: UHC Nursing Home Plan WA-F001 (I-SNP) — 564 enrollees
- Plans without Drug Coverage: 0
| Health Plan Name | CMS Rating* | Premium Per Mo | Network | ||
|---|---|---|---|---|---|
| UHC Care Advantage WA-E001 | $11 | 4000.00 | $270 | H0710-030-0 | |
| UHC Nursing Home Plan WA-F001 | $11 | 9250.00 | $615 | H0710-031-0 | |
| Humana Together in Health | $1 | 9250.00 | $615 | H5216-402-0 | |
| AgeRight Advantage Health Plan | $11 | 9250.00 | $615 | H1372-001-0 | |
| AgeRight Advantage Plus Health Plan | $65 | 6000.00 | $300 | H1372-002-0 |
What is the total number of I-SNP plans in King County?
King County has 5 I-SNP plans for 2026, with 829 enrollees.
How much do I-SNP plans cost in King County?
The typical I-SNP premium in King County is $19.44, and 0 plans have no monthly premium.
C-SNP Plans (Chronic Condition Special Needs Plans)
Chronic Condition Special Needs Plans (C-SNPs) are a category of Medicare Advantage plans offered to beneficiaries with qualifying chronic conditions, as defined by CMS program rules.
| Health Plan Name | CMS Rating* | Premium Per Mo | Network | ||
|---|---|---|---|---|---|
| Humana Gold Plus - Diabetes and Heart | $0 | 5500.00 | $615 | H1036-306-0 | |
| UHC Complete Care WA-13 | $0 | 5900.00 | $355 | H3805-043-0 |
What is the typical premium for C-SNP plans in King County?
C-SNP plans in King County cost $0.00 per month.
Which C-SNP plan do most beneficiaries choose in King County?
The most popular C-SNP plan in King County is Humana Gold Plus - Diabetes and Heart (C-SNP), with 1,780 enrollees.
How many Chronic Condition SNP plans are offered in King County?
In 2026, King County offers 2 C-SNP plans with 3,542 enrollees.
- CMS.gov, Medicare Advantage Landscape Source Files — Last accessed June 13, 2026
- CMS.gov, Medicare Part C & D Performance Data — Last accessed June 13, 2026
- CMS.gov, Medicare Advantage & Part D Contract and Enrollment Data — Last accessed June 13, 2026
County-level figures shown on this page, including plan counts, enrollment totals, averages, and percentage distributions, reflect Medicare Special Needs Plans (SNP) only and are derived from CMS datasets using a standardized aggregation methodology.
Data sources and methodology documentation .
- CMS.gov, "Medicare Advantage Plan Fact Sheet" — Last accessed 25 May, 2025
- Medicare.gov, "Your coverage options" — Last accessed 23 May, 2025
- Medicare.gov, "Joining a plan" — Last accessed 21 May, 2025
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Data provenance documentation is maintained in alignment with the U.S. Core Data for Interoperability (USCDI) Provenance standard .
Page content independently curated and maintained by David W. Bynon, Editorial Steward, using a standardized, data-driven methodology for accurate, non-commercial Medicare plan interpretation and resolution.