Medicare Advantage in Washtenaw County, MI, for 2027.
CMS lists 93 Medicare Advantage plans here for 2027, 3 fewer than 2026 (96). 41,153 people in the county had an individual Medicare Advantage plan in October 2026.
Sources: CMS CY2027 plan file (October 2026 release), CMS CY2026 plan file (September 2026 release), CMS enrollment by county (CPSC), October 2026, CMS 2027 Plan Crosswalk (October 1, 2026), CMS 2027 Star Ratings Data Tables (October 8, 2026). Member counts are floors because CMS hides counts of 10 or fewer.
The county in numbers
Plans that end here for 2027
8 plans with members in the county end or leave it, plus 52 with 10 or fewer members here. CMS moves 118 members to another plan, and 19,190 stay in the same plan.
| Plan | Insurer | Members | Why |
|---|---|---|---|
| PriorityMedicare Vital (PPO) | Corewell Health | 228 | Plan terminated |
| Wellcare Dual Access Open (PPO D-SNP) | Centene | 85 | Plan terminated |
| Wellcare Simple Open (PPO) | Centene | 72 | Plan terminated |
| Wellcare Patriot Giveback Open (PPO) | Centene | 26 | Plan terminated |
| Paramount Elite Standard (HMO-POS) | MEDICAL MUTUAL OF OHIO | 17 | Plan leaves this county |
| PriorityMedicare Vintage (HMO-POS) | Corewell Health | 16 | Plan terminated |
| Aetna Medicare HIDE (HMO D-SNP) | CVS Health | 13 | Plan leaves this county |
| Humana Gold Plus Chronic Kidney Disease (HMO C-SNP) | Humana | 11 | Plan terminated |
Where CMS moves members
| 2026 plan | 2027 plan | Members |
|---|---|---|
| Humana USAA Honor Giveback with Rx (PPO) | Humana Full Access Giveback (PPO) | 37 |
| BCN Advantage Elements (HMO-POS) | BCN Advantage Elements (HMO-POS) | 30 |
| Humana Gold Plus H8908-001 (HMO-POS) | Humana Gold Plus H8908-004 (HMO-POS) | 28 |
| Humana USAA Honor Giveback with Rx (PPO) | Humana Full Access Giveback (PPO) | 23 |
| Humana Full Access H5216-287 (PPO) | Humana Full Access (PPO) | 10 or fewer |
| Humana Full Access H7617-055 (PPO) | Humana Full Access (PPO) | 10 or fewer |
Who holds the members
- Blue Cross Blue Shield of Michigan Mutual Ins. Co.24,735
- Corewell Health3,393
- Humana3,216
- CVS Health2,566
- UnitedHealth2,319
- Henry Ford Health System2,042
Individual Medicare Advantage members by parent company, October 2026.
Top rated plans sold here
- Longevity Health Plan (HMO I-SNP)Longevity Health Founders5.0
- BCN Advantage Classic (HMO-POS)Blue Cross Blue Shield of Michigan Mutual Ins. Co.4.5
- BCN Advantage ConnectedCare (HMO)Blue Cross Blue Shield of Michigan Mutual Ins. Co.4.5
- BCN Advantage Elements (HMO-POS)Blue Cross Blue Shield of Michigan Mutual Ins. Co.4.5
- BCN Advantage Prestige (HMO-POS)Blue Cross Blue Shield of Michigan Mutual Ins. Co.4.5
- BCN Advantage Prime Value (HMO-POS)Blue Cross Blue Shield of Michigan Mutual Ins. Co.4.5
- Humana Full Access (PPO)Humana4.5
- Humana Full Access Giveback (PPO)Humana4.5
2027 overall Star Rating, 4.5 or more. Each plan's measure stars are in the county lookup.
See every plan, premium and copay in the free lookup.
Sort all 93 plans, open each plan's benefits and star measures, and see what each insurer paid agents in 2026.
Open Washtenaw in the lookupWorking this county for AEP?
The AEP 2027 County Kit puts this county and your others in one file: the plans that end, where members land, what is still sold and a crosswalk sheet, with every number tied to its CMS file.
See the AEP 2027 County KitAll Michigan county pages. Facts from public CMS files, prepared by Health and Tech Now. Not plan advice. Check a plan's Summary of Benefits before you enroll.