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Video: 66 New Medicare Advantage Plans in California for 2027

The video version of our explainer for California: its main points, read aloud. The full article, with its sources, is linked below.

Published October 30, 2026 · 38 days left in Annual Enrollment (Oct. 15 to Dec. 7, 2026)

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By MyMedicarePlans Data Desk · Plan Landscape & Data✓ Verified Team
✓ Reviewed for the 2027 plan year·● California
2027 PLAN ALERT

Medicare Advantage plans in your area are changing or leaving for 2027.

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By the numbers

How California's 2027 changes compare

#3
of 51 states by plans leaving for 2027
18.4%
of California's 2026 plans are not returning
42.3%
of 2026 plans carry over with no change
8.9
new plans enter for every 10 leaving

Measured against its own 2026 lineup of Medicare Advantage plans, California is losing 18.4% of them, the 29th highest of the 48 states with 20 or more plans; nationally, counting each plan once, the figure is 20.6%. 42.3% of the state's 2026 plans continue into 2027 with no change in premium, drug deductible, plan type or name; the other 57.7% change or leave.

Plans are leaving in 44 of California's 56 counties.

California counts 3,718,738 people in Medicare Advantage, 10.4% of the national total.

Share of each state's 2026 Medicare Advantage plans leaving for 2027
Nevada20.0%
Tennessee18.9%
Kentucky18.4%
California18.4%
Louisiana18.0%
Oklahoma17.1%
North Carolina16.6%
United States20.6%

The California counties losing the largest share of their plans

County2026 plansLeavingShare
Calaveras County5240.0%
Solano County13538.5%
Yolo County341338.2%
Imperial County21838.1%
Tulare County24937.5%

50.4% of the rated Medicare Advantage plans offered in California for 2027 come from contracts rated 4 stars or higher, against 60.0% nationwide.

Stand-alone drug plans (for people on Original Medicare) in California's Part D region: 10 for 2027, down from 12 in 2026; none of them with a $0 monthly premium, against 1 in 2026.

Sources: CMS MA Landscape Source Files, CY2026 and CY2027; CMS State/County MA Penetration; CMS 2027 Star Ratings; CMS Part D (PDP) Landscape Source Files, CY2026 and CY2027. Area-level counts; no plan is named or recommended.

Read the full article

66 New Medicare Advantage Plans in California for 2027

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Program-level information only; no plan is recommended, no premium or benefit is quoted. Not connected with or endorsed by the U.S. government or the federal Medicare program.

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