Medicare plan changes in Illinois for 2027
Across 102 counties in Illinois, the 2027 CMS file lists 1,615 county listings of Medicare Advantage plans with drug coverage, compared with 2,082 in 2026. By our count, 0 counties have none in 2027, including counties that do not appear in the CMS file at all.
Before you choose a plan
Compare plans for your ZIP code, drugs and doctors on the official Medicare Plan Finder, or call 1-800-MEDICARE (1-800-633-4227). Free, unbiased counselling is available from your State Health Insurance Assistance Program at shiphelp.org.
By county
| County | 2026 plans | 2027 plans | Change | Companies leaving |
|---|---|---|---|---|
| Adams County | 16 | 12 | -4 | Health Care Service Corporation, Molina Healthcare, Inc. |
| Alexander County | 14 | 14 | +0 | CVS Health Corporation, Health Care Service Corporation |
| Bond County | 35 | 30 | -5 | Health Care Service Corporation, Molina Healthcare, Inc. |
| Boone County | 29 | 21 | -8 | Group 1001, Health Care Service Corporation, Molina Healthcare, Inc. |
| Brown County | 17 | 10 | -7 | CVS Health Corporation, Health Care Service Corporation, Molina Healthcare, Inc. |
| Bureau County | 20 | 17 | -3 | Health Care Service Corporation, Molina Healthcare, Inc. |
| Calhoun County | 30 | 28 | -2 | Health Care Service Corporation, Molina Healthcare, Inc. |
| Carroll County | 13 | 13 | +0 | Health Care Service Corporation, Molina Healthcare, Inc. |
| Cass County | 19 | 13 | -6 | CVS Health Corporation, Health Care Service Corporation, Molina Healthcare, Inc. |
| Champaign County | 11 | 12 | +1 | None |
| Christian County | 18 | 15 | -3 | Health Care Service Corporation |
| Clark County | 16 | 13 | -3 | Health Care Service Corporation |
| Clay County | 14 | 11 | -3 | Health Care Service Corporation |
| Clinton County | 37 | 32 | -5 | Group 1001, Health Care Service Corporation, Molina Healthcare, Inc. |
| Coles County | 14 | 11 | -3 | Health Care Service Corporation |
| Cook County | 51 | 42 | -9 | Group 1001, Molina Healthcare, Inc. |
| Crawford County | 15 | 12 | -3 | Health Care Service Corporation |
| Cumberland County | 14 | 11 | -3 | Health Care Service Corporation |
| De Witt County | 16 | 13 | -3 | CVS Health Corporation, Health Care Service Corporation, Molina Healthcare, Inc. |
| DeKalb County | 22 | 16 | -6 | Health Care Service Corporation |
| Douglas County | 14 | 16 | +2 | Health Care Service Corporation, Molina Healthcare, Inc. |
| DuPage County | 47 | 38 | -9 | Group 1001, Molina Healthcare, Inc. |
| Edgar County | 13 | 9 | -4 | CVS Health Corporation, Health Care Service Corporation |
| Edwards County | 14 | 10 | -4 | CVS Health Corporation, Health Care Service Corporation |
| Effingham County | 12 | 9 | -3 | Health Care Service Corporation |
| Fayette County | 19 | 16 | -3 | Health Care Service Corporation, Molina Healthcare, Inc. |
| Ford County | 16 | 11 | -5 | CVS Health Corporation, Health Care Service Corporation, Molina Healthcare, Inc. |
| Franklin County | 14 | 9 | -5 | CVS Health Corporation, Health Care Service Corporation |
| Fulton County | 14 | 13 | -1 | Health Care Service Corporation |
| Gallatin County | 14 | 9 | -5 | CVS Health Corporation, Health Care Service Corporation |
| Greene County | 26 | 19 | -7 | Health Care Service Corporation, Molina Healthcare, Inc. |
| Grundy County | 25 | 22 | -3 | Health Care Service Corporation |
| Hamilton County | 14 | 9 | -5 | CVS Health Corporation, Health Care Service Corporation |
| Hancock County | 13 | 10 | -3 | Health Care Service Corporation, Molina Healthcare, Inc. |
| Hardin County | 14 | 9 | -5 | CVS Health Corporation, Health Care Service Corporation |
| Henderson County | 17 | 14 | -3 | Health Care Service Corporation |
| Henry County | 18 | 18 | +0 | Health Care Service Corporation |
| Iroquois County | 20 | 15 | -5 | CVS Health Corporation, Health Care Service Corporation, Molina Healthcare, Inc. |
| Jackson County | 17 | 11 | -6 | CVS Health Corporation, Health Care Service Corporation |
| Jasper County | 15 | 11 | -4 | Health Care Service Corporation |
| Jefferson County | 14 | 9 | -5 | CVS Health Corporation, Health Care Service Corporation |
| Jersey County | 36 | 31 | -5 | Health Care Service Corporation |
| Jo Daviess County | 16 | 14 | -2 | Health Care Service Corporation |
| Johnson County | 13 | 12 | -1 | CVS Health Corporation, Health Care Service Corporation |
| Kane County | 44 | 34 | -10 | Group 1001, Molina Healthcare, Inc. |
| Kankakee County | 41 | 29 | -12 | Group 1001 |
| Kendall County | 32 | 24 | -8 | Health Care Service Corporation, Molina Healthcare, Inc. |
| Knox County | 18 | 15 | -3 | Health Care Service Corporation |
| LaSalle County | 20 | 19 | -1 | Group 1001, Health Care Service Corporation |
| Lake County | 38 | 26 | -12 | Health Care Service Corporation |
| Lawrence County | 12 | 10 | -2 | CVS Health Corporation, Health Care Service Corporation |
| Lee County | 23 | 18 | -5 | Health Care Service Corporation, Molina Healthcare, Inc. |
| Livingston County | 19 | 13 | -6 | CVS Health Corporation, Health Care Service Corporation, Molina Healthcare, Inc. |
| Logan County | 17 | 13 | -4 | CVS Health Corporation, Health Care Service Corporation, Molina Healthcare, Inc. |
| Macon County | 14 | 11 | -3 | Health Care Service Corporation |
| Macoupin County | 30 | 21 | -9 | Group 1001, Health Care Service Corporation, Molina Healthcare, Inc. |
| Madison County | 42 | 33 | -9 | Group 1001, Health Care Service Corporation, Molina Healthcare, Inc. |
| Marion County | 15 | 10 | -5 | CVS Health Corporation, Health Care Service Corporation |
| Marshall County | 18 | 17 | -1 | Health Care Service Corporation, Molina Healthcare, Inc. |
| Mason County | 17 | 12 | -5 | Health Care Service Corporation |
| Massac County | 7 | 11 | +4 | CVS Health Corporation |
| McDonough County | 15 | 12 | -3 | Health Care Service Corporation, Molina Healthcare, Inc. |
| McHenry County | 39 | 20 | -19 | Group 1001, Health Care Service Corporation |
| McLean County | 19 | 14 | -5 | Health Care Service Corporation, Molina Healthcare, Inc. |
| Menard County | 18 | 13 | -5 | CVS Health Corporation, Health Care Service Corporation, Molina Healthcare, Inc. |
| Mercer County | 14 | 13 | -1 | Health Care Service Corporation |
| Monroe County | 34 | 28 | -6 | Molina Healthcare, Inc. |
| Montgomery County | 23 | 20 | -3 | Health Care Service Corporation, Molina Healthcare, Inc. |
| Morgan County | 17 | 13 | -4 | CVS Health Corporation, Health Care Service Corporation |
| Moultrie County | 20 | 15 | -5 | Health Care Service Corporation, Molina Healthcare, Inc. |
| Ogle County | 27 | 19 | -8 | Group 1001, Health Care Service Corporation, Molina Healthcare, Inc. |
| Peoria County | 21 | 15 | -6 | Health Care Service Corporation |
| Perry County | 18 | 14 | -4 | CVS Health Corporation, Health Care Service Corporation |
| Piatt County | 16 | 12 | -4 | CVS Health Corporation, Health Care Service Corporation, Molina Healthcare, Inc. |
| Pike County | 20 | 12 | -8 | CVS Health Corporation, Health Care Service Corporation, Molina Healthcare, Inc. |
| Pope County | 14 | 12 | -2 | CVS Health Corporation, Health Care Service Corporation |
| Pulaski County | 13 | 11 | -2 | CVS Health Corporation, Health Care Service Corporation |
| Putnam County | 17 | 15 | -2 | Health Care Service Corporation, Molina Healthcare, Inc. |
| Randolph County | 21 | 7 | -14 | CVS Health Corporation, Health Care Service Corporation, UnitedHealth Group, Inc. |
| Richland County | 16 | 10 | -6 | CVS Health Corporation, Health Care Service Corporation |
| Rock Island County | 20 | 18 | -2 | Health Care Service Corporation |
| Saline County | 11 | 8 | -3 | CVS Health Corporation, Health Care Service Corporation |
| Sangamon County | 18 | 16 | -2 | Health Care Service Corporation |
| Schuyler County | 16 | 11 | -5 | CVS Health Corporation, Health Care Service Corporation, Molina Healthcare, Inc. |
| Scott County | 19 | 15 | -4 | Health Care Service Corporation, Molina Healthcare, Inc. |
| Shelby County | 16 | 11 | -5 | CVS Health Corporation, Health Care Service Corporation, Molina Healthcare, Inc. |
| St. Clair County | 40 | 34 | -6 | Group 1001, Molina Healthcare, Inc. |
| Stark County | 16 | 14 | -2 | Health Care Service Corporation, Molina Healthcare, Inc. |
| Stephenson County | 25 | 19 | -6 | Group 1001, Health Care Service Corporation, Molina Healthcare, Inc. |
| Tazewell County | 19 | 15 | -4 | Health Care Service Corporation |
| Union County | 17 | 15 | -2 | CVS Health Corporation, Health Care Service Corporation |
| Vermilion County | 15 | 13 | -2 | Health Care Service Corporation |
| Wabash County | 12 | 10 | -2 | CVS Health Corporation, Health Care Service Corporation |
| Warren County | 13 | 9 | -4 | Health Care Service Corporation |
| Washington County | 27 | 18 | -9 | CVS Health Corporation, Health Care Service Corporation, Molina Healthcare, Inc. |
| Wayne County | 15 | 10 | -5 | CVS Health Corporation, Health Care Service Corporation |
| White County | 13 | 10 | -3 | CVS Health Corporation, Health Care Service Corporation |
| Whiteside County | 18 | 13 | -5 | Health Care Service Corporation |
| Will County | 49 | 39 | -10 | Group 1001, Molina Healthcare, Inc. |
| Williamson County | 10 | 4 | -6 | CVS Health Corporation, Health Care Service Corporation |
| Winnebago County | 30 | 21 | -9 | Group 1001, Health Care Service Corporation, Molina Healthcare, Inc. |
| Woodford County | 18 | 11 | -7 | CVS Health Corporation, Health Care Service Corporation, Molina Healthcare, Inc. |
Stand-alone Part D drug plans in Illinois for 2027
10 plans in 2027, compared with 12 in 2026. Lowest monthly drug plan premium: $5.30 (2026: $0).
| Plan | Company | Monthly premium | Deductible | Star rating |
|---|---|---|---|---|
| Wellcare Value Script (PDP) | Wellcare | $5.30 | $700 | Not Applicable |
| Humana Basic Rx Plan (PDP) | Humana | $6.30 | $700 | Not Applicable |
| Wellcare Classic (PDP) | Wellcare | $7.30 | $700 | Not Applicable |
| Humana Value Rx Plan (PDP) | Humana | $22.30 | $687 | Not Applicable |
| AARP Medicare Rx Saver from UHC (PDP) | UnitedHealthcare | $78.30 | $700 | Not Applicable |
| HealthSpring Assurance Rx (PDP) | HealthSpring | $90.90 | $700 | Not Applicable |
| HealthSpring Extra RX (PDP) | HealthSpring | $108.20 | $700 | Not Applicable |
| SilverScript Choice (PDP) | Aetna Medicare | $120.90 | $700 | Not Applicable |
| Humana Premier Rx Plan (PDP) | Humana | $130.20 | $350 | Not Applicable |
| AARP Medicare Rx Preferred from UHC (PDP) | UnitedHealthcare | $178.30 | $300 | Not Applicable |
Sources
- Centers for Medicare & Medicaid Services, CY2027 Medicare Advantage and Part D Landscape file (data last updated 18 October 2026)
- Centers for Medicare & Medicaid Services, CY2026 Medicare Advantage and Part D Landscape file (September 2026 release)
- US Census Bureau, 2024 Gazetteer Files, counties
Checked 29 October 2026. Plans and premiums can change before 1 January 2027. Confirm any plan on Medicare.gov before you enrol.