Medicare Advantage in Winnebago County, IL, for 2027.
CMS lists 43 Medicare Advantage plans here for 2027, 12 fewer than 2026 (55). 37,450 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 48 with 10 or fewer members here. CMS moves 1,207 members to another plan, and 29,539 stay in the same plan.
| Plan | Insurer | Members | Why |
|---|---|---|---|
| Humana Full Access H5216-412 (PPO) | Humana | 202 | Plan terminated |
| Blue Cross Medicare Advantage Value (HMO) | Health Care Service | 170 | Plan terminated |
| Blue Cross Medicare Advantage Essential (PPO) | Health Care Service | 73 | Plan terminated |
| Humana Full Access H7617-009 (PPO) | Humana | 68 | Plan terminated |
| Blue Cross Medicare Advantage Dental Premier (PPO) | Health Care Service | 42 | Plan terminated |
| Blue Cross Medicare Advantage Health Choice (PPO) | Health Care Service | 26 | Plan terminated |
| Molina Medicare Choice Care (HMO) | Molina Healthcare | 12 | Plan terminated |
| Wellcare Patriot Giveback (HMO) | Centene | 11 | Plan terminated |
Where CMS moves members
| 2026 plan | 2027 plan | Members |
|---|---|---|
| Molina Medicare Complete Care Plus (HMO D-SNP) | Molina Medicare Complete Care Plus (HMO D-SNP) | 490 |
| Aetna Medicare Signature Extra (PPO) | Aetna Medicare Advantra Signature Extra (PPO) | 343 |
| Wellcare Simple Essential (HMO) | Wellcare Simple Essential (HMO) | 252 |
| Humana USAA Honor Giveback (PPO) | Humana USAA Honor Giveback (PPO) | 75 |
| Aetna Medicare Prime Chronic Total (HMO C-SNP) | Aetna Medicare Prime Chronic Care (HMO C-SNP) | 47 |
| Molina Medicare Complete Care Plus (HMO D-SNP) | Molina Medicare Complete Care Plus (HMO D-SNP) | 10 or fewer |
| Molina Medicare Complete Care Plus (HMO D-SNP) | Molina Medicare Complete Care Plus (HMO D-SNP) | 10 or fewer |
| Molina Medicare Complete Care Plus (HMO D-SNP) | Molina Medicare Complete Care Plus (HMO D-SNP) | 10 or fewer |
Who holds the members
- CVS Health18,918
- Humana9,551
- UnitedHealth4,416
- Zing Health Consolidator, Inc1,897
- Devoted Health871
- Centene699
Individual Medicare Advantage members by parent company, October 2026.
Top rated plans sold here
- UHC Nursing Home Plan IL-F001 (PPO I-SNP)UnitedHealth5.0
- Humana Gold Plus - Diabetes and Heart (HMO C-SNP)Humana4.5
- Humana USAA Honor Giveback (PPO)Humana4.5
- Humana Value Choice (PPO)Humana4.5
- UHC Complete Care Support IL-1A (PPO C-SNP)UnitedHealth4.5
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 43 plans, open each plan's benefits and star measures, and see what each insurer paid agents in 2026.
Open Winnebago 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 Illinois 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.