County Plan Watch
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California

Medicare Advantage plans in Napa County, CA: what changed for 2027

For 2027, Napa County in California has 3 Medicare Advantage plans that include drug coverage, compared with 3 in 2026, according to the CMS plan landscape files.

Advantage plans with drug coverage3no change
Advantage plans without drug coverage1no change
Special Needs Plans4+1 from 2026
$0 premium plans with drug coverage2no change
Median out-of-pocket limit$3,6502026: $3,200
Plans rated 4 stars or more3+2 from 2026

How many people here are in Medicare Advantage

In October 2026, 14,937 of the 32,505 people eligible for Medicare in Napa County were enrolled in a Medicare Advantage or other Medicare health plan, 46.0%. A year earlier it was 15,133 of 31,933 (47.4%).

CMS counts enrollees in all Medicare health plans, including Advantage, cost and PACE plans, by the county where they live.

Before you choose a plan

Compare plans for your ZIP code, drugs and doctors on the official Medicare Plan Finder, or call 1-800-MEDICARE (1-800-633-4227). Free, unbiased counselling is available from your State Health Insurance Assistance Program at shiphelp.org.

Advantage plans with drug coverage for 2027 (3)

PlanCompanyTypeMonthly premiumIn-network out-of-pocket limitStar rating
Humana Gold Plus H5619-147 (HMO)HumanaHMO$0$3,6504 of 5
Imperial Dynamic Plan (HMO)Imperial Health Plan of California, Inc.HMO$0$2954 of 5
Kaiser Permanente Senior Advantage Alam., SF, Napa (HMO)Kaiser PermanenteHMO$105.00$3,9004.5 of 5

Advantage plans without drug coverage for 2027 (1)

PlanCompanyTypeMonthly premiumIn-network out-of-pocket limitStar rating
Imperial Courage Plan (HMO)Imperial Health Plan of California, Inc.HMONot listed$2,9994 of 5

Special Needs Plans for 2027 (4)

PlanCompanyTypeMonthly premiumIn-network out-of-pocket limitStar rating
Anthem Chronic Care Advantage (PPO C-SNP)Anthem Blue Cross and Blue ShieldPPO C-SNP · Chronic or Disabling Condition$0$9,8503 of 5
Imperial Senior Value (HMO C-SNP)Imperial Health Plan of California, Inc.HMO C-SNP · Chronic or Disabling Condition$0$2954 of 5
Kaiser Permanente Dual Complete North P25 (HMO D-SNP)Kaiser PermanenteHMO D-SNP · Dual-Eligible$0$9,8504.5 of 5
Imperial Flex (HMO C-SNP)Imperial Health Plan of California, Inc.HMO C-SNP · Chronic or Disabling Condition$2.70$9,8504 of 5

Stand-alone Part D drug plans are offered statewide: see California drug plans.

Sources

  1. Centers for Medicare & Medicaid Services, CY2027 Medicare Advantage and Part D Landscape file (data last updated 18 October 2026)
  2. Centers for Medicare & Medicaid Services, CY2026 Medicare Advantage and Part D Landscape file (September 2026 release)
  3. Centers for Medicare & Medicaid Services, MA State/County Penetration files, October 2026 and October 2025

Checked 29 October 2026. Plans and premiums can change before 1 January 2027. Confirm any plan on Medicare.gov before you enrol.