2027 open enrollment. 3.15M must pick a new plan.

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Vlada / Medicare Advantage / Washington / Thurston County

Medicare Advantage plan exits 2027 in Thurston County, WA

4,577 of the 27,074 Medicare Advantage members in Thurston County (16.9%) are in a plan that is not sold in the county for 2027: 17 of the 57 plans sold there in September 2026 end, from the CMS 2027 Landscape and crosswalk. Washington: 23.5%; the nation: 10.6%.

Period: plan year 2027 against September 2026 members · Updated 2026-10-20 · Next: CMS January 2027 enrollment (February 2027): where the members landed

members, Sept 2026
27,074
members, Sept 2026
must pick for 2027
4,577
must pick for 2027
share of members
16.9%
share of members
plans end
17 of 57
plans end

Medicare Advantage members in Thurston County, 2015 to 2026

MA enrollment in September each year, with MA penetration (members over Medicare eligibles) at the top of each bar, from the CMS state-county penetration file. Navy: the last two years. 60 plans are listed for the county for 2027 against 65 for 2026.

09k19k28k37k33%201534%36%201737%38%201940%43%202145%49%202352%53%202553%

The plans that end for 2027

Every plan sold in Thurston County in September 2026 with members whose plan is not sold there for 2027: how it went (terminated, or its service area reduced so it continues elsewhere), the members the same company offers a new or renumbered plan of the same type, and the members whose company sells nothing in the county next year.

PlanCompanyTypeMembersTerminatedService area reducedOffered a new or renumbered planCompany gone
AARP Medicare Advantage From UHC Wa-12 (PPO) H2001-087UnitedHealth Group, Inc.Regular PPO59659605960
Aetna Medicare Signature Advantage (HMO) H3931-126CVS Health CorporationRegular HMO56656605660
Humanachoice H7617-019 (PPO) H7617-019Humana Inc.Regular PPO439439000
UHC Complete Care Wa-13 (HMO-POS C-SNP) H3805-043UnitedHealth Group, Inc.CSNP HMO43543504350
AARP Medicare Advantage Patriot No Rx Wa-ma01 (PPO) H1278-031UnitedHealth Group, Inc.Regular PPO37637603760
Regence Medadvantage + Rx Primary (PPO) H5009-011Cambia Health Solutions, Inc.Regular PPO341341000
AARP Medicare Advantage From UHC Wa-0010 (HMO-POS) H3805-037UnitedHealth Group, Inc.Regular HMO307307000
Humanachoice H5216-426 (PPO) H5216-426Humana Inc.Regular PPO303303000
AARP Medicare Advantage From UHC Wa-0002 (PPO) H1278-029UnitedHealth Group, Inc.Regular PPO29229202920
Humana Gold Plus Snp-de H1036-326 (HMO D-SNP) H1036-326Humana Inc.D-SNP HMO215215000
AARP Medicare Advantage From UHC Wa-16 (PPO) H2001-136UnitedHealth Group, Inc.Regular PPO18418401840
Wellcare Simple (HMO-POS) H0029-011Centene CorporationRegular HMO176176000
AARP Medicare Advantage From UHC Wa-0004 (PPO) H1278-032UnitedHealth Group, Inc.Regular PPO16516501650
Wellcare Giveback (HMO-POS) H0029-009Centene CorporationRegular HMO123123000
Molina Medicare Complete Care Select (HMO D-SNP) H5823-010Molina Healthcare, Inc.D-SNP HMO24240240
AARP Medicare Advantage Access From UHC Wa-11 (PPO) H2001-138UnitedHealth Group, Inc.Regular PPO20200200
Humana Gold Plus Snp-de H1036-324 (HMO D-SNP) H1036-324Humana Inc.D-SNP HMO1515000
17 plans4,5774,57702,6580

Download this table (CSV, CC BY 4.0) · cells under 11 members are suppressed by CMS and count as zero, so every count is a floor.

By company in Thurston County

CompanyMembers, Sept 2026PlansPlans endingMust pickShare of own membersOffered a new or renumbered planCompany gone
UnitedHealth Group, Inc.13,5332082,37517.5%2,0680
Humana Inc.3,26315497229.8%00
CVS Health Corporation2,1275156626.6%5660
Cambia Health Solutions, Inc.7022134148.6%00
Centene Corporation4104229972.9%00
Molina Healthcare, Inc.31921247.5%240
Kaiser Foundation Health Plan, Inc.6,2134000.0%00
SCAN Group3282000.0%00
Elevance Health, Inc.971000.0%00
Community Health Plan of Washington822000.0%00

Thurston County against Washington and the nation

MeasureCountyWashingtonUnited States
Must pick for 2027, share of members16.9%23.5%10.6%
Must pick for 202621.8%10.1%
Must pick for 2025, members3,896 of 25,757
Must pick for 2026, members5,796 of 26,601
Must pick for 2027, members4,577 of 27,074

State and national figures: the Washington hub and the national report.

Star Ratings 2027 in Thurston County

Measure20272026Change
Members in contracts rated 4+ stars65.6%57.1%+8.5 pts
Member-weighted average star4.073.86+0.21
Rated contracts with members here2322

Members by star, 2027: 5.0: 199 · 4.5: 19,046 · 4.0: 4,709 · 3.5: 10,998 · 3.0: 1,152 · 2.5: 429; 425 in unrated contracts. Each contract's 2027 overall star (CMS, released 2026-10-08) weighted by its 2026-09 members in the county, individual and group; 2026 by 2025-09 members.

Sources

  • CMS Medicare Advantage/Part D Landscape, plan year 2027: landscape_cy2027-landscape-202609-1.zip (CMS, September 2026); CMS plan crosswalk CY2027.
  • CMS monthly enrollment by contract, plan and county, 2026-09 (and the two Septembers before, for the series).
  • CMS MA state-county penetration file, September of each year (eligibles, enrollment, penetration).
  • CMS Star Ratings 2027, released 2026-10-08. Page object written 2026-10-20.

Receipts: athena(table=medicare_semantic.exits_cells_county_2027_v1, block=plans) 042eb472aa7d…; athena(table=medicare_semantic.exits_cells_county_2025_v1, medicare_semantic.exits_cells_county_2026_v1, medicare_semantic.exits_cells_county_2027_v1, block=series) ee9fd56a8632…; athena(table=medicare_semantic.ma_spine_county_market_v20261012b, block=market) e6c1b5ce62c0…; athena(table=medicare_semantic.ma_spine_contract_stars_v20261012b, weights=medicare_semantic.ma_spine_enroll_plan_county_v20261012a, block=stars) c39711c388e0…. Suppressed cells count as zero in every count.

Cite: Vlada Health (2026). Medicare Advantage plan exits 2027 in Thurston County, WA. https://www.vladahealth.com/medicare-advantage/wa/thurston. Data: CC BY 4.0.

Method

  • Population: members of individual Medicare Advantage plans (H and R contracts, plans 001 to 799, special needs plans included; employer group, Cost, MMP and PACE excluded) in the county in September 2026.
  • Must pick: the CMS crosswalk names no successor plan sold in the county for 2027; members CMS moves to a successor in the county are not counted.
  • Terminated: the plan is gone from every county. Service area reduced: the plan continues elsewhere but not here. Offered a new or renumbered plan: the same company sells, in this county, the same name under a new number or a new plan of the same HMO or PPO and special needs type. Company gone: no plan of any type from that company in the county.
  • Stars: each contract's overall star weighted by its September members in the county; unrated contracts counted apart, never as zero stars. Penetration: the CMS file's own eligibles and MA enrollment.
  • Suppression: CMS hides cells under 11 members; they count as zero, so every count is a floor and every share is not.

The full method and the national tables: How we counted, and how to check it.

Questions

How many Medicare Advantage members in Thurston County must pick a new plan for 2027?
4,577 of 27,074 members (16.9%): their plan is not sold in the county for 2027 according to the CMS crosswalk and Landscape. Washington as a whole: 23.5%; the nation: 10.6%.
Which plan in Thurston County ends with the most members?
AARP Medicare Advantage From UHC Wa-12 (PPO) (H2001-087, UnitedHealth Group, Inc.): 596 members in September 2026, terminated; the company offers them a new or renumbered plan of the same type in the county.
Which company ended the most plans in Thurston County for 2027?
UnitedHealth Group, Inc.: 2,375 of its 13,533 members in the county (17.5%), 8 of its 20 plans.
What share of Thurston County's Medicare eligibles are in Medicare Advantage?
52.7% in September 2026: 37,205 of 70,627 eligibles, from the CMS state-county penetration file.
How are Thurston County's members rated for 2027?
65.6% of members are in contracts rated 4 stars or more for 2027 (57.1% the year before); the member-weighted average star is 4.07 over 23 rated contracts.
How does 2027 compare with 2026 in Thurston County?
5,796 members (21.8%) had to pick a new plan for 2026; for 2027 it is 4,577 (16.9%), a change of -1,219 members.

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