Free tool · plan year 2027
Musselshell, Montana — plan year 2027
County summary — plan year 2027
6 of 14
plans available here for 2026 do not appear in the 2027 landscape file.
Between 5% and 10% of this county's enrollment is in these plans.
Source: CMS, CY2027 Medicare Advantage and Part D Landscape Source File (PY2027, retrieved October 3, 2026) and Monthly Enrollment by CPSC, September 2026.
Plans available for 2026 that are not in the 2027 file
Blue Cross Medicare Advantage Choice Plus (PPO)
Blue Cross and Blue Shield of Montana · Health Care Service Corporation
Not in the file- Plan ID
- H0107-005-0
- Plan type
- PPO
- Overall star rating (2026)
- 3.5
- Enrollment · September 2026
- at least 23
Not offered in Musselshell, Montana for plan year 2027.
Blue Cross Medicare Advantage Dental Premier (PPO)
Blue Cross and Blue Shield of Montana · Health Care Service Corporation
Not in the file- Plan ID
- H0107-007-0
- Plan type
- PPO
- Overall star rating (2026)
- 3.5
- Enrollment · September 2026
- at least 16
Not offered in Musselshell, Montana for plan year 2027.
Blue Cross Medicare Advantage Classic (PPO)
Blue Cross and Blue Shield of Montana · Health Care Service Corporation
Not in the file- Plan ID
- H0107-003-0
- Plan type
- PPO
- Overall star rating (2026)
- 3.5
- Enrollment · September 2026
- fewer than 11
Not offered in Musselshell, Montana for plan year 2027.
Blue Cross Medicare Advantage Health Choice (PPO)
Blue Cross and Blue Shield of Montana · Health Care Service Corporation
Not in the file- Plan ID
- H0107-010-0
- Plan type
- PPO
- Overall star rating (2026)
- 3.5
- Enrollment · September 2026
- fewer than 11
Not offered in Musselshell, Montana for plan year 2027.
Blue Cross Medicare Advantage Optimum (PPO)
Blue Cross and Blue Shield of Montana · Health Care Service Corporation
Not in the file- Plan ID
- H0107-004-0
- Plan type
- PPO
- Overall star rating (2026)
- 3.5
- Enrollment · September 2026
- fewer than 11
Not offered in Musselshell, Montana for plan year 2027.
Blue Cross Medicare Advantage Protect (PPO)
Blue Cross and Blue Shield of Montana · Health Care Service Corporation
Not in the file- Plan ID
- H0107-011-0
- Plan type
- PPO
- Overall star rating (2026)
- 3.5
- Enrollment · September 2026
- fewer than 11
Not offered in Musselshell, Montana for plan year 2027.
Some of these plans may move members to a successor plan automatically. CMS has not published the file that says which yet. We will update this page when it does.
Source: Centers for Medicare & Medicaid Services, CY2027 Medicare Advantage and Part D Landscape Source File and Monthly Enrollment by CPSC, retrieved October 3, 2026.
Look up a county
What this does not tell you
Why a plan is missing from the 2027 file. A second federal file explains that, and it posts after the landscape file.
Whether a plan's members will be moved to another plan automatically. That is in the same second file.
What any plan will cost for 2027, what its network will be, or which plan any individual should choose. This is not plan-shopping advice.
Exact enrollment. Cells below the federal publication floor of 11 are not published, so every count here is a floor and undercounts small rural counties most.
Beyond one county
Plan availability is one number a payer changes without telling you.
In Network watches payer medical policy, coding rules and contracted rates for hospitals and practices, and tells you the day something moves.
Before you use this page
In Network is not affiliated with, endorsed by, or acting on behalf of the Centers for Medicare & Medicaid Services, the U.S. Department of Health and Human Services, or any government agency.
This page is a summary of public CMS files. It is not advice about which plan anyone should choose, and it is not a plan comparison.
Plan availability can change. Verify any plan's status at medicare.gov or by calling 1-800-MEDICARE (1-800-633-4227), TTY 1-877-486-2048.
If you are looking at this because of your own coverage, medicare.gov and the number above are the right places to get an answer about it.
Source: Centers for Medicare & Medicaid Services, CY2027 Medicare Advantage and Part D Landscape Source File and Monthly Enrollment by CPSC, retrieved October 3, 2026.