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Medicare plans in Big Horn County, MT — 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, Big Horn County, Montana has 18 Medicare plans (3 Medicare Advantage with drug coverage, 2 without, 9 standalone Part D, 4 Special Needs) from 5 carriers. 5 Medicare Advantage plans have a $0 premium. The lowest in-network out-of-pocket maximum is $5,000.
What changed vs 2026
- 8 fewer plans than 2026
- Carriers exited: Aetna Medicare, Blue Cross and Blue Shield of Montana
- Average star rating up 0.5
Market snapshot
- Residents 65 and older
- 1,814
- Residents 60–64, aging in over the next five years
- 796
- Medicare eligibles
- 2,122
- Medicare Advantage penetration
- 30.3%
- Plans per 1,000 residents 65+
- 9.9
Carriers by number of plans
- Humana — 11 plans
- UnitedHealthcare — 3 plans
- Wellcare — 2 plans
- HealthSpring — 1 plan
- MedicareBlue Rx — 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 |
|---|---|---|---|---|---|---|---|
| Humana Dual QMB Only (PPO D-SNP) (H7617-037-0) | Humana | SNP | PPO D-SNP | $0 | $250 | $9,850 | 4.5 |
| HumanaChoice SNP-DE H7617-036 (PPO D-SNP) (H7617-036-0) | Humana | SNP | PPO D-SNP | $0 | $200 | $9,850 | 4.5 |
| Humana Basic Rx Plan (PDP) (S5884-145-0) | Humana | PDP | PDP | $18.30 | $700 | 4.5 | |
| UHC Dual Complete MT-S001 (PPO D-SNP) (H2001-041-0) | UnitedHealthcare | SNP | PPO D-SNP | $24.60 | $700 | $9,850 | 4.5 |
| Humana Value Rx Plan (PDP) (S5884-204-0) | Humana | PDP | PDP | $33.30 | $687 | 4.5 | |
| Humana Premier Rx Plan (PDP) (S5884-171-0) | Humana | PDP | PDP | $123 | $350 | 4.5 | |
| Humana Gold Plus SNP-DE H6622-008 (HMO D-SNP) (H6622-008-0) | Humana | SNP | HMO D-SNP | $0 | $700 | $9,850 | 4.0 |
| Humana USAA Honor Giveback (PPO) (H5216-278-3) | Humana | MA | PPO | $0 | $6,750 | 4.0 | |
| Humana USAA Honor Giveback (PPO) (H5216-427-5) | Humana | MA | PPO | $0 | $9,150 | 4.0 | |
| Humana Gold Plus H6622-007 (HMO) (H6622-007-0) | Humana | MA-PD | HMO | $21 | $700 | $5,850 | 4.0 |
Showing 10 of 18 plans.
Nearby counties
- Yellowstone County
- Treasure County
- Rosebud County
- Carbon County
- Musselshell County
- Stillwater County
Agent Tools
- Estimate drug costs in this county
- Marketplace (ACA) plans in this county
- Compare with another county
- Download plan list (CSV)
- Alert me when plans change here
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.