Plan year 2027 · Williamson County, IL
Medicare Advantage plans leaving Williamson County, Illinois in 2027
4 carriers are pulling plans from Williamson County for 2027: Aetna, HealthSpring, Blue Cross and Blue Shield of Illinois and 1 more.
Step 1 · Check your plan
Is your plan leaving Williamson County?
Tap your plan to see its 2027 status in Williamson County, or type its name.
Is your plan one of these?
Showing the 8 largest of 9 changing plans. Don't see yours? Type it below.
4 carriers are changing coverage in Williamson County for 2027: 8 plan terminations and 1 service area reduction. Roughly 1,527 members in Williamson County are affected. 18 Medicare Advantage plans were offered here in 2026; 9 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 Williamson County
- Aetna2 terminations1 service area reduction674 membersAetna Medicare Eagle (PPO) · Aetna Medicare Signature (PPO) · Aetna Medicare Enhanced (PPO)
- HealthSpring1 termination481 membersHealthSpring True Choice (PPO)
- Blue Cross and Blue Shield of Illinois4 terminations343 membersBlue Cross Medicare Advantage Dental Premier (PPO) · Blue Cross Medicare Advantage Protect (PPO) · Blue Cross Medicare Advantage Health Choice (PPO) …
- Wellcare1 termination29 membersWellcare Patriot Giveback (HMO)
Every affected plan in Williamson 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 Eagle (PPO) H7301-023 · PPO | Service Area Reduction | January 1, 2027 | Confirm whether your county is still covered. |
| Aetna Medicare | Aetna Medicare Enhanced (PPO) H7301-034 · PPO | Termination | January 1, 2027 | Choose a new plan before the deadline. |
| Aetna Medicare | Aetna Medicare Signature (PPO) H7301-027 · PPO | Termination | January 1, 2027 | Choose a new plan before the deadline. |
| Blue Cross and Blue Shield of IL, NM, OK, TX | Blue Cross Medicare Advantage Dental Premier (PPO) H8634-021 · PPO | Termination | January 1, 2027 | Choose a new plan before the deadline. |
| Blue Cross and Blue Shield of IL, NM, OK, TX | Blue Cross Medicare Advantage Essential (PPO) H8634-012 · PPO | Termination | January 1, 2027 | Choose a new plan before the deadline. |
| Blue Cross and Blue Shield of IL, NM, OK, TX | Blue Cross Medicare Advantage Health Choice (PPO) H8634-018 · PPO | Termination | January 1, 2027 | Choose a new plan before the deadline. |
| Blue Cross and Blue Shield of IL, NM, OK, TX | Blue Cross Medicare Advantage Protect (PPO) H8634-019 · PPO | Termination | January 1, 2027 | Choose a new plan before the deadline. |
| HealthSpring | HealthSpring True Choice (PPO) H7849-059 · PPO | Termination | January 1, 2027 | Choose a new plan before the deadline. |
| Wellcare | Wellcare Patriot Giveback (HMO) H5779-011 · HMO | Termination | January 1, 2027 | Choose a new plan before the deadline. |
Plans available in Williamson County for 2027
Losing a plan does not mean losing options. 9 Medicare Advantage plans from 4 carriers are offered in Williamson County, Illinois for 2027. 8 have a $0 monthly premium, and 4 are D-SNP plans for people with both Medicare and Medicaid.
| Plan | Type | Monthly premium |
|---|---|---|
| Aetna Medicare FIDE (HMO D-SNP)Aetna Medicare FIDE$0/moHMO D-SNP | HMO D-SNP | $0 |
| Humana Dual Fully Integrated (HMO D-SNP)Humana$0/moHMO D-SNP | HMO D-SNP | $0 |
| Humana USAA Honor Giveback (Regional PPO)Humana$0/moRegional PPO | Regional PPO | $0 |
| Molina Medicare Complete Care Plus (HMO D-SNP)Molina Healthcare of Illinois$0/moHMO D-SNP | HMO D-SNP | $0 |
| Wellcare Giveback (HMO)Wellcare$0/moHMO | HMO | $0 |
Showing the 5 lowest-premium of 9 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 Williamson 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 Illinois
Aetna
HealthSpring
Blue Cross and Blue Shield of Illinois
ZIP codes in Williamson County
These changes apply to Medicare Advantage members living in Williamson County, including these ZIP codes:
62841, 62902, 62915, 62918, 62921, 62922, 62933, 62948, 62949, 62951, 62959, 62974