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Medicare plans in Sierra County, CA — 2027

What agents look up before working a county: plan count, carriers, $0-premium share, star distribution, MOOP range, the 65+ and 60–64 population, and what changed since last year.

In 2027, Sierra County, California has 12 Medicare plans (1 Medicare Advantage with drug coverage, 1 without, 10 standalone Part D, 0 Special Needs) from 5 carriers. 1 Medicare Advantage plan has a $0 premium. The lowest in-network out-of-pocket maximum is $6,500.

What changed vs 2026

  • 2 fewer plans than 2026
  • Carriers exited: Aetna Medicare
  • Average star rating up 0.5

Market snapshot

Residents 65 and older
963
Residents 60–64, aging in over the next five years
150
Medicare eligibles
932
Medicare Advantage penetration
12.6%
Plans per 1,000 residents 65+
12.5

Carriers by number of plans

  • Humana — 5 plans
  • Blue Shield of California — 2 plans
  • UnitedHealthcare — 2 plans
  • Wellcare — 2 plans
  • HealthSpring — 1 plan

Plans sorted by CMS star rating, then premium

PlanCarrierCategoryPlan typeMonthly premiumDrug deductibleOut-of-pocket maximumStar rating
Humana Basic Rx Plan (PDP) (S5884-114-0)HumanaPDPPDP$118.30$7004.5
Humana Value Rx Plan (PDP) (S5884-211-0)HumanaPDPPDP$130.30$6874.5
Humana Premier Rx Plan (PDP) (S5884-178-0)HumanaPDPPDP$191.20$3504.5
Humana USAA Honor Giveback (PPO) (H5525-079-0)HumanaMAPPO$0$6,5004.0
HumanaChoice H5525-056 (PPO) (H5525-056-0)HumanaMA-PDPPO$97$700$7,1504.0
Wellcare Value Script (PDP) (S4802-163-0)WellcarePDPPDP$5.30$7003.0
Wellcare Classic (PDP) (S4802-094-0)WellcarePDPPDP$7.30$7003.0
AARP Medicare Rx Saver from UHC (PDP) (S5921-376-0)UnitedHealthcarePDPPDP$170.80$7003.0
AARP Medicare Rx Preferred from UHC (PDP) (S5921-413-0)UnitedHealthcarePDPPDP$242.60$3003.0
HealthSpring Assurance Rx (PDP) (S5715-049-0)HealthSpringPDPPDP$9.30$7002.5

Showing 10 of 12 plans.

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About this data

Source: CMS Medicare Advantage/Part D Landscape files, plan year 2027; population: U.S. Census Bureau ACS 5-year 2024; MA penetration: CMS October 2026.

This page summarizes publicly available CMS data. It is not a plan finder and does not recommend plans. To compare and enroll in plans, use Medicare.gov or talk to a licensed agent. Medicare.gov plan finder.