Medicare Advantage plans in Sierra County, CA: what changed for 2027
For 2027, Sierra County in California has 1 Medicare Advantage plan that include drug coverage, compared with 1 in 2026, according to the CMS plan landscape files.
How many people here are in Medicare Advantage
In October 2026, 117 of the 932 people eligible for Medicare in Sierra County were enrolled in a Medicare Advantage or other Medicare health plan, 12.6%. A year earlier it was 114 of 902 (12.6%).
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 (1)
| Plan | Company | Type | Monthly premium | In-network out-of-pocket limit | Star rating |
|---|---|---|---|---|---|
| HumanaChoice H5525-056 (PPO) | Humana | PPO | $97.00 | $7,150 | 4 of 5 |
Advantage plans without drug coverage for 2027 (1)
| Plan | Company | Type | Monthly premium | In-network out-of-pocket limit | Star rating |
|---|---|---|---|---|---|
| Humana USAA Honor Giveback (PPO) | Humana | PPO | Not listed | $6,500 | 4 of 5 |
Stand-alone Part D drug plans are offered statewide: see California drug plans.
Sources
- Centers for Medicare & Medicaid Services, CY2027 Medicare Advantage and Part D Landscape file (data last updated 18 October 2026)
- Centers for Medicare & Medicaid Services, CY2026 Medicare Advantage and Part D Landscape file (September 2026 release)
- 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.