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Medicare plans in Adams County, ID — 2026
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 2026, Adams County, Idaho has 26 Medicare plans (6 Medicare Advantage with drug coverage, 4 without, 10 standalone Part D, 6 Special Needs) from 7 carriers. 5 Medicare Advantage plans have a $0 premium. The lowest in-network out-of-pocket maximum is $5,100.
Market snapshot
- Residents 65 and older
- 1,429
- Residents 60–64, aging in over the next five years
- 423
- Medicare eligibles
- 1,645
- Medicare Advantage penetration
- 35.2%
- Plans per 1,000 residents 65+
- 18.2
Carriers by number of plans
- UnitedHealthcare — 8 plans
- Humana — 7 plans
- Saint Alphonsus Health Plan — 4 plans
- HealthSpring — 2 plans
- Molina Healthcare of Utah & Idaho — 2 plans
- Wellcare — 2 plans
- Aetna Medicare — 1 plan
Plans sorted by CMS star rating, then premium
| Plan | Carrier | Category | Plan type | Monthly premium | Drug deductible | Out-of-pocket maximum | Star rating |
|---|
| UHC Complete Care Support ID-1A (PPO C-SNP) (H2001-050-0) | UnitedHealthcare | SNP | PPO C-SNP | $37.60 | $615 | $9,250 | 4.5 |
|---|
| Saint Alphonsus Health Plan Cash Back (HMO) (H6910-005-0) | Saint Alphonsus Health Plan | MA-PD | HMO | $0 | $325 | $7,900 | 4.0 |
|---|
| Saint Alphonsus Health Plan No Premium (HMO) (H6910-001-0) | Saint Alphonsus Health Plan | MA-PD | HMO | $0 | $225 | $5,500 | 4.0 |
|---|
| UHC Complete Care ID-12 (HMO-POS C-SNP) (H4604-024-0) | UnitedHealthcare | SNP | HMO-POS C-SNP | $0 | $600 | $6,700 | 4.0 |
|---|
| AARP Medicare Advantage from UHC ID-0005 (HMO-POS) (H4604-012-0) | UnitedHealthcare | MA-PD | HMO-POS | $64 | $520 | $5,900 | 4.0 |
|---|
| AARP Medicare Advantage Patriot No Rx ID-MA01 (HMO-POS) (H4604-019-0) | UnitedHealthcare | MA | HMO-POS | | | $6,700 | 4.0 |
|---|
| Saint Alphonsus Health Plan Glory No RX (HMO) (H6910-004-0) | Saint Alphonsus Health Plan | MA | HMO | | | $5,900 | 4.0 |
|---|
| HumanaChoice H5525-054 (PPO) (H5525-054-0) | Humana | MA-PD | PPO | $64 | $615 | $7,000 | 3.5 |
|---|
| HumanaChoice H5216-048 (PPO) (H5216-048-0) | Humana | MA-PD | PPO | $87 | $615 | $6,750 | 3.5 |
|---|
| Humana USAA Honor Giveback (PPO) (H5216-427-4) | Humana | MA | PPO | | | $9,150 | 3.5 |
|---|
Showing 10 of 26 plans.
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About this data
Source: CMS Medicare Advantage/Part D Landscape files, plan year 2026; population: U.S. Census Bureau ACS 5-year 2024; MA penetration: CMS September 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.