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

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Vlada / Medicare Advantage / Oregon / Crook County

Medicare Advantage plan exits 2027 in Crook County, OR

2,364 of the 3,042 Medicare Advantage members in Crook County (77.7%) are in a plan that is not sold in the county for 2027: 3 of the 6 plans sold there in September 2026 end, from the CMS 2027 Landscape and crosswalk. Oregon: 26.0%; 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
3,042
members, Sept 2026
must pick for 2027
2,364
must pick for 2027
share of members
77.7%
share of members
plans end
3 of 6
plans end

Medicare Advantage members in Crook 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. 10 plans are listed for the county for 2027 against 6 for 2026.

09002k3k4k22%201523%23%201723%25%201928%32%202136%41%202344%42%202540%

The plans that end for 2027

Every plan sold in Crook 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
Pacificsource Medicare Essentials Choice Rx 36 (HMO-POS) H3864-036PacificSourceRegular HMO1,86301,8631,8630
Pacificsource Medicare Essentials Choice Rx 14 (HMO-POS) H3864-014PacificSourceRegular HMO41641604160
Pacificsource Medicare Essentials Rx 27 (HMO) H3864-027PacificSourceRegular HMO85850850
3 plans2,3645011,8632,3640

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 Crook County

CompanyMembers, Sept 2026PlansPlans endingMust pickShare of own membersOffered a new or renumbered planCompany gone
PacificSource3,042632,36477.7%2,3640

Crook County against Oregon and the nation

MeasureCountyOregonUnited States
Must pick for 2027, share of members77.7%26.0%10.6%
Must pick for 202612.0%10.1%
Must pick for 2025, members439 of 3,189
Must pick for 2026, members370 of 3,093
Must pick for 2027, members2,364 of 3,042

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

Star Ratings 2027 in Crook County

Measure20272026Change
Members in contracts rated 4+ stars5.0%16.7%-11.7 pts
Member-weighted average star3.083.60-0.52
Rated contracts with members here56

Members by star, 2027: 4.5: 162 · 3.5: 19 · 3.0: 3,042; 23 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 Crook County, OR. https://www.vladahealth.com/medicare-advantage/or/crook. 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 Crook County must pick a new plan for 2027?
2,364 of 3,042 members (77.7%): their plan is not sold in the county for 2027 according to the CMS crosswalk and Landscape. Oregon as a whole: 26.0%; the nation: 10.6%.
Which plan in Crook County ends with the most members?
Pacificsource Medicare Essentials Choice Rx 36 (HMO-POS) (H3864-036, PacificSource): 1,863 members in September 2026, its service area reduced; the company offers them a new or renumbered plan of the same type in the county.
Which company ended the most plans in Crook County for 2027?
PacificSource: 2,364 of its 3,042 members in the county (77.7%), 3 of its 6 plans.
What share of Crook County's Medicare eligibles are in Medicare Advantage?
40.4% in September 2026: 3,339 of 8,265 eligibles, from the CMS state-county penetration file.
How are Crook County's members rated for 2027?
5.0% of members are in contracts rated 4 stars or more for 2027 (16.7% the year before); the member-weighted average star is 3.08 over 5 rated contracts.
How does 2027 compare with 2026 in Crook County?
370 members (12.0%) had to pick a new plan for 2026; for 2027 it is 2,364 (77.7%), a change of +1,994 members.

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