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

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Vlada / Medicare Advantage / California / Kern County

Medicare Advantage plan exits 2027 in Kern County, CA

1,714 of the 55,023 Medicare Advantage members in Kern County (3.1%) are in a plan that is not sold in the county for 2027: 5 of the 38 plans sold there in September 2026 end, from the CMS 2027 Landscape and crosswalk. California: 5.5%; 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
55,023
members, Sept 2026
must pick for 2027
1,714
must pick for 2027
share of members
3.1%
share of members
plans end
5 of 38
plans end

Medicare Advantage members in Kern 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. 42 plans are listed for the county for 2027 against 39 for 2026.

016k32k49k65k36%201536%37%201738%40%201942%43%202145%46%202347%48%202547%

The plans that end for 2027

Every plan sold in Kern 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
Central Health Classic Care Plan I (HMO) H5649-027Molina Healthcare, Inc.Regular HMO75975900759
Central Health Embrace Care Plan (HMO C-SNP) H5649-025Molina Healthcare, Inc.CSNP HMO55655600556
Central Health Embrace Choice Plan (HMO C-SNP) H5649-026Molina Healthcare, Inc.CSNP HMO22922900229
Central Health Dual Access Plan (HMO D-SNP) H5649-024Molina Healthcare, Inc.D-SNP HMO14514500145
Central Health Valor Care Plan (HMO) H5649-030Molina Healthcare, Inc.Regular HMO25250025
5 plans1,7141,714001,714

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 Kern County

CompanyMembers, Sept 2026PlansPlans endingMust pickShare of own membersOffered a new or renumbered planCompany gone
Molina Healthcare, Inc.1,714551,714100.0%01,714
Kaiser Foundation Health Plan, Inc.15,6963000.0%00
Elevance Health, Inc.13,5854000.0%00
Humana Inc.6,0765000.0%00
Imperial Health Plan of California4,5183000.0%00
UnitedHealth Group, Inc.4,4174000.0%00
Centene Corporation2,5342000.0%00
CVS Health Corporation2,2544000.0%00
Champion Health Plans-USA, LLC.1,9316000.0%00
Kern Health Systems (KHS)1,3431000.0%00
California Physicians' Service9551000.0%00

Kern County against California and the nation

MeasureCountyCaliforniaUnited States
Must pick for 2027, share of members3.1%5.5%10.6%
Must pick for 20268.1%10.1%
Must pick for 2025, members1,940 of 51,781
Must pick for 2026, members4,333 of 53,786
Must pick for 2027, members1,714 of 55,023

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

Star Ratings 2027 in Kern County

Measure20272026Change
Members in contracts rated 4+ stars60.0%47.2%+12.8 pts
Member-weighted average star3.863.71+0.15
Rated contracts with members here2124

Members by star, 2027: 4.5: 23,432 · 4.0: 11,910 · 3.5: 10,009 · 3.0: 11,159 · 2.5: 2,363; 5,124 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 Kern County, CA. https://www.vladahealth.com/medicare-advantage/ca/kern. 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 Kern County must pick a new plan for 2027?
1,714 of 55,023 members (3.1%): their plan is not sold in the county for 2027 according to the CMS crosswalk and Landscape. California as a whole: 5.5%; the nation: 10.6%.
Which plan in Kern County ends with the most members?
Central Health Classic Care Plan I (HMO) (H5649-027, Molina Healthcare, Inc.): 759 members in September 2026, terminated.
Which company ended the most plans in Kern County for 2027?
Molina Healthcare, Inc.: 1,714 of its 1,714 members in the county (100.0%), 5 of its 5 plans.
What share of Kern County's Medicare eligibles are in Medicare Advantage?
47.4% in September 2026: 64,844 of 136,751 eligibles, from the CMS state-county penetration file.
How are Kern County's members rated for 2027?
60.0% of members are in contracts rated 4 stars or more for 2027 (47.2% the year before); the member-weighted average star is 3.86 over 21 rated contracts.
How does 2027 compare with 2026 in Kern County?
4,333 members (8.1%) had to pick a new plan for 2026; for 2027 it is 1,714 (3.1%), a change of -2,619 members.

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Use Vlada. In Kern County, California, which Medicare Advantage plans are not sold for 2027, how many members are in each, and what did 2026 look like? Give me a table with the source file, the data vintage and the response hash.

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