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Medicare Supplement Plan K in Jefferson County, WA
By Vadim Marusin, licensed Medicare insurance agent in Washington (WAOIC #1365574). Insurer data checked against the state chart current as of October 8, 2026.
2 insurers sell Plan K in Jefferson County, and every one of them pays exactly the same Plan K benefits. What differs is the premium, discounts and service, so it pays to compare.
Insurers selling Medicare Supplement Plan K in Jefferson County
- Regence BlueShield
- UnitedHealthcare (AARP) (AARP membership required)
15,190 people on Medicare in Jefferson County82% in Original Medicare (WA 50%)11% of those 65+ are 85 or older
Not sold here: Regence BlueCross BlueShield of Oregon and Asuris. Plan K caps your yearly out-of-pocket at $8,000 (2026) and pays half of most costs until then.
Plan K by town in Jefferson County
Other plans in Jefferson County: Plan G, Plan N, High-deductible Plan G, Plan A, Plan F. Statewide: Plan K in Washington.
Common questions
Which insurers sell Plan K in Jefferson County?
2: Regence BlueShield, UnitedHealthcare (AARP) (OIC chart current as of October 8, 2026).