Medicare Advantage in Cook County, IL, for 2027.
CMS lists 67 Medicare Advantage plans here for 2027, 11 fewer than 2026 (78). 399,973 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
9 plans with members in the county end or leave it, plus 377 with 10 or fewer members here. CMS moves 5,776 members to another plan, and 309,688 stay in the same plan.
| Plan | Insurer | Members | Why |
|---|---|---|---|
| Blue Cross Medicare Advantage Choice Plus (PPO) | Health Care Service | 4,096 | Plan terminated |
| Humana Full Access H5216-412 (PPO) | Humana | 2,429 | Plan terminated |
| Blue Cross Medicare Advantage Choice Premier (PPO) | Health Care Service | 1,760 | Plan terminated |
| Blue Cross Medicare Advantage Basic Plus (HMO-POS) | Health Care Service | 1,498 | Plan terminated |
| Humana Full Access H7617-009 (PPO) | Humana | 1,063 | Plan terminated |
| Blue Cross Medicare Advantage Secure (HMO) | Health Care Service | 890 | Plan terminated |
| Blue Cross Medicare Advantage Premier Plus (HMO-POS) | Health Care Service | 351 | Plan terminated |
| Molina Medicare Choice Care (HMO) | Molina Healthcare | 109 | Plan terminated |
| Wellcare Patriot Giveback (HMO) | Centene | 63 | 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) | 3,940 |
| Wellcare Simple Value (HMO-POS) | Wellcare Simple (HMO-POS) | 699 |
| Wellcare Simple Essential (HMO) | Wellcare Simple Essential (HMO) | 605 |
| Aetna Medicare Prime Chronic Total (HMO C-SNP) | Aetna Medicare Prime Chronic Care (HMO C-SNP) | 282 |
| Humana USAA Honor Giveback (PPO) | Humana USAA Honor Giveback (PPO) | 218 |
| Molina Medicare Complete Care Plus (HMO D-SNP) | Molina Medicare Complete Care Plus (HMO D-SNP) | 32 |
| Molina Medicare Complete Care Plus (HMO D-SNP) | Molina Medicare Complete Care Plus (HMO D-SNP) | 10 or fewer |
Who holds the members
- Humana147,908
- CVS Health82,416
- UnitedHealth76,028
- Health Care Service38,345
- Centene25,179
- Zing Health Consolidator, Inc14,383
Individual Medicare Advantage members by parent company, October 2026.
Top rated plans sold here
- Longevity Health Plan (HMO I-SNP)Longevity Health Founders5.0
- UHC Nursing Home Plan IL-F001 (PPO I-SNP)UnitedHealth5.0
- DEVOTED CHOICE 001 IL (PPO)Devoted Health4.5
- DEVOTED CHOICE 010 IL (PPO)Devoted Health4.5
- 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 67 plans, open each plan's benefits and star measures, and see what each insurer paid agents in 2026.
Open Cook 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.