MedicarePartD.guide

A non-government resource built from CMS public data

Washington Part D plan statistics, 2025–2026

How the stand-alone Medicare Part D market in Washington (CMS PDP Region 30) has changed from year to year: the number of plans, what they charge, and what members who kept their plan saw happen to its premium.

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Washington stand-alone Part D plans by year
 20252026Change 2025–2026
Stand-alone plans1210−2
Enhanced plans75−2
Basic plans55no change
Plans with a $0 deductible21−1
Plans with a $0 premium34+1
$0 premium with full Extra Help54−1
Plans rated 4 stars or more00no change
Lowest monthly premium$0.00$0.00no change
Median monthly premium$22.40$22.10−$0.30 (−1%)
Average monthly premium$39.45$41.50+$2.05 (+5%)
Highest monthly premium$110.10$110.00−$0.10 (<1%)
Average deductible$455.67$503.60+$47.93 (+11%)

If you keep your 2025 plan into 2026

  • Of the 10 plans renewing, the premium went up on 4, down on 4 and stayed the same on 2.
  • Median change: no change a month; average +$11.12.
  • The largest rise: HealthSpring Extra Rx (PDP), from $0.00 to $50.00 a month.
  • Of the 2025 plans, 1 was merged into another plan. 1 is not offered in 2026.

See every 2025 plan and what becomes of it →

Counts are of stand-alone prescription drug plans (PDPs) sold in Washington; Medicare Advantage plans and employer or union retiree plans are not included. Averages are simple averages across plans, not weighted by enrollment. 2025 figures come from the CMS 2025 Landscape file via the CMS plan crosswalk. A dash means that year’s source does not report the figure. Browse the 2026 Washington plans.