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

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Vlada / Medicare Advantage / Texas / Jefferson County

Medicare Advantage plan exits 2027 in Jefferson County, TX

1,483 of the 22,253 Medicare Advantage members in Jefferson County (6.7%) are in a plan that is not sold in the county for 2027: 13 of the 76 plans sold there in September 2026 end, from the CMS 2027 Landscape and crosswalk. Texas: 8.9%; 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
22,253
members, Sept 2026
must pick for 2027
1,483
must pick for 2027
share of members
6.7%
share of members
plans end
13 of 76
plans end

Medicare Advantage members in Jefferson 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. 73 plans are listed for the county for 2027 against 84 for 2026.

07k14k21k28k35%201537%40%201744%46%201948%54%202156%59%202360%60%202560%

The plans that end for 2027

Every plan sold in Jefferson 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 Tx-0006 (PPO) H1278-014UnitedHealth Group, Inc.Regular PPO386386000
Wellcare Giveback (HMO) H0174-019Centene CorporationRegular HMO320320000
Humana Gold Choice H8145-084 (PFFS) H8145-084Humana Inc.REGULAR OTHER150150000
AARP Medicare Advantage Giveback From UHC Tx-31 (PPO) H1278-021UnitedHealth Group, Inc.Regular PPO142142000
Wellcare Simple Open (PPO) H7323-012Centene CorporationRegular PPO111111000
Blue Cross Medicare Advantage Basic (HMO) H8133-001Health Care Service CorporationRegular HMO102102000
Wellcare Assist (HMO) H0174-009Centene CorporationRegular HMO7171000
Blue Cross Medicare Advantage Choice Premier (PPO) H1666-003Health Care Service CorporationRegular PPO5151000
UHC Complete Care Support Tx-1a (regional PPO C-SNP) R6801-008UnitedHealth Group, Inc.CSNP PPO4444000
Wellcare Texanplus Patriot Giveback (HMO-POS) H4506-010Centene CorporationRegular HMO3838000
Christus Health Medicare Plus (HMO) H1189-010CHRISTUS HealthRegular HMO32320032
AARP Medicare Advantage Patriot No Rx Tx-ma05 (PPO) H1278-027UnitedHealth Group, Inc.Regular PPO2102100
Blue Cross Medicare Advantage Optimum (PPO) H1666-022Health Care Service CorporationRegular PPO1515000
13 plans1,4831,46221032

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 Jefferson County

CompanyMembers, Sept 2026PlansPlans endingMust pickShare of own membersOffered a new or renumbered planCompany gone
UnitedHealth Group, Inc.3,72711459315.9%00
Centene Corporation4,0829454013.2%00
Health Care Service Corporation3,2021031685.2%00
Humana Inc.6,9802111502.1%00
CHRISTUS Health321132100.0%032
Elevance Health, Inc.1,3776000.0%00
CVS Health Corporation1,3397000.0%00
Devoted Health, Inc.1,2818000.0%00
Molina Healthcare, Inc.1251000.0%00
Regency ISNP Holdings LLC591000.0%00
First Sacramento Capital Funding LLC491000.0%00

Jefferson County against Texas and the nation

MeasureCountyTexasUnited States
Must pick for 2027, share of members6.7%8.9%10.6%
Must pick for 20261.0%10.1%
Must pick for 2025, members1,744 of 21,339
Must pick for 2026, members219 of 21,844
Must pick for 2027, members1,483 of 22,253

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

Star Ratings 2027 in Jefferson County

Measure20272026Change
Members in contracts rated 4+ stars67.1%64.8%+2.3 pts
Member-weighted average star4.014.04-0.03
Rated contracts with members here3029

Members by star, 2027: 4.5: 12,165 · 4.0: 6,308 · 3.5: 6,527 · 3.0: 2,536; 81 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 Jefferson County, TX. https://www.vladahealth.com/medicare-advantage/tx/jefferson. 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 Jefferson County must pick a new plan for 2027?
1,483 of 22,253 members (6.7%): their plan is not sold in the county for 2027 according to the CMS crosswalk and Landscape. Texas as a whole: 8.9%; the nation: 10.6%.
Which plan in Jefferson County ends with the most members?
AARP Medicare Advantage From UHC Tx-0006 (PPO) (H1278-014, UnitedHealth Group, Inc.): 386 members in September 2026, terminated.
Which company ended the most plans in Jefferson County for 2027?
UnitedHealth Group, Inc.: 593 of its 3,727 members in the county (15.9%), 4 of its 11 plans.
What share of Jefferson County's Medicare eligibles are in Medicare Advantage?
60.0% in September 2026: 27,779 of 46,338 eligibles, from the CMS state-county penetration file.
How are Jefferson County's members rated for 2027?
67.1% of members are in contracts rated 4 stars or more for 2027 (64.8% the year before); the member-weighted average star is 4.01 over 30 rated contracts.
How does 2027 compare with 2026 in Jefferson County?
219 members (1.0%) had to pick a new plan for 2026; for 2027 it is 1,483 (6.7%), a change of +1,264 members.

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