Plan year 2027 · Mason County, MI
Medicare Advantage plans leaving Mason County, Michigan in 2027
3 carriers are pulling plans from Mason County for 2027: Priority Health, Humana and Aetna.
Step 1 · Check your plan
Is your plan leaving Mason County?
Tap your plan to see its 2027 status in Mason County, or type its name.
Is your plan one of these?
3 carriers are changing coverage in Mason County for 2027: 3 plan terminations and 5 service area reductions. Roughly 2,589 members in Mason County are affected. 52 Medicare Advantage plans were offered here in 2026; 48 are offered for 2027. If you're enrolled in one of the plans below, you'll need to pick a new plan for January 1, 2027.
Carriers with changes in Mason County
- Priority Health2 terminations4 service area reductions2,395 membersPriorityMedicare Key (HMO-POS) · PriorityMedicare Vintage (HMO-POS) · PriorityMedicare Thrive Plus (PPO) …
- Humana1 service area reduction194 membersHumana USAA Honor Giveback with Rx (PPO)
- Aetna1 terminationAetna Medicare Enhanced (PPO)
Every affected plan in Mason County
Sorted by carrier. Effective dates are for the 2027 plan year.
| Carrier | Plan | What's changing | Effective | What members must do |
|---|---|---|---|---|
| Aetna Medicare | Aetna Medicare Enhanced (PPO) H5521-607 · PPO | Termination | January 1, 2027 | Choose a new plan before the deadline. |
| Humana | Humana USAA Honor Giveback with Rx (PPO) H5216-305 · PPO | Service Area Reduction | January 1, 2027 | Confirm whether your county is still covered. |
| Priority Health Medicare | PriorityMedicare Edge (PPO) H4875-020 · PPO | Service Area Reduction | January 1, 2027 | Confirm whether your county is still covered. |
| Priority Health Medicare | PriorityMedicare Key (HMO-POS) H2320-022 · HMO-POS | Service Area Reduction | January 1, 2027 | Confirm whether your county is still covered. |
| Priority Health Medicare | PriorityMedicare Thrive (PPO) H4875-024 · PPO | Service Area Reduction | January 1, 2027 | Confirm whether your county is still covered. |
| Priority Health Medicare | PriorityMedicare Thrive Plus (PPO) H4875-018 · PPO | Service Area Reduction | January 1, 2027 | Confirm whether your county is still covered. |
| Priority Health Medicare | PriorityMedicare Vintage (HMO-POS) H2320-031 · HMO-POS | Termination | January 1, 2027 | Choose a new plan before the deadline. |
| Priority Health Medicare | PriorityMedicare Vital (PPO) H4875-022 · PPO | Termination | January 1, 2027 | Choose a new plan before the deadline. |
Plans available in Mason County for 2027
Losing a plan does not mean losing options. 48 Medicare Advantage plans from 9 carriers are offered in Mason County, Michigan for 2027. 26 have a $0 monthly premium, and 11 are D-SNP plans for people with both Medicare and Medicaid.
| Plan | Type | Monthly premium |
|---|---|---|
| Aetna Medicare Dual Care (HMO D-SNP)Aetna Medicare$0/moHMO D-SNP | HMO D-SNP | $0 |
| Aetna Medicare Eagle (PPO)Aetna Medicare$0/moPPO | PPO | $0 |
| Aetna Medicare Signature (PPO)Aetna Medicare$0/moPPO | PPO | $0 |
| Aetna Medicare Signature Extra (PPO)Aetna Medicare$0/moPPO | PPO | $0 |
| BCN Advantage Elements (HMO-POS)Blue Care Network$0/moHMO-POS | HMO-POS | $0 |
Showing the 5 lowest-premium of 48 available plans. 2027 star ratings are published by CMS in early October 2026. Premiums shown are the consolidated Part C + D monthly premium.
Dates that matter
Your ANOC letter arrives
Carriers must mail the Annual Notice of Change — and non-renewal notices — before enrollment opens.
Annual Enrollment Period
Pick your 2027 plan. Coverage you choose starts January 1, 2027.
How it works →Special Enrollment Period
Members of terminated plans get extra time to choose a new Medicare Advantage or Part D plan.
How it works →Guaranteed-issue Medigap window
Losing your plan gives you the right to buy select Medigap policies with no health questions.
Medicare Advantage Open Enrollment
Already in a Medicare Advantage plan on January 1? You can make one change: switch plans or go back to Original Medicare.
How it works →
Step 2 · Tell us where to send your options
Your 2027 options in Mason County
Step 3 · Choose your path
You're all set.
Both options are free. Either way, your information stays with our office.
Where else these carriers are leaving in Michigan
Priority Health
Humana
ZIP codes in Mason County
These changes apply to Medicare Advantage members living in Mason County, including these ZIP codes:
49405, 49410, 49411, 49431, 49454, 49458