Medicare Advantage plans in Illinois, 2027
139 Medicare Advantage plans are sold in Illinois for 2027 (159 in 2026); 109 are open to everyone and 81 of those have a $0 premium everywhere they are sold. 62,500 Illinois members in September 2026 were in plans that end or leave their county for 2027.
What changes in Illinois for 2027?
| In the state | 2026 | 2027 | Change |
|---|---|---|---|
| Plans sold in the state | 159 | 139 | ▼down 20 |
| Plans open to everyone | 126 | 109 | ▼down 17 |
| Plans with a $0 premium everywhere they are sold | 96 | 81 | ▼down 15 |
| Plans that lower the Part B premium | 40 | 29 | ▼down 11 |
Source: CMS Medicare Advantage and Part D landscape files for 2027 (Sept. 22, 2026, revised Sept. 30) and 2026 (Sept. 2, 2026 revision); CMS plan benefit package files, 2027 and 2026.
Which companies sell the most plans in Illinois?
Plans open to everyone, by parent company and the brands it sells under, 2027
Source: CMS Medicare Advantage and Part D landscape files for 2027 (Sept. 22, 2026, revised Sept. 30) and 2026 (Sept. 2, 2026 revision).
Which Illinois counties lose the most?
Plans end in or leave Illinois counties 835 times for 2027. Counties with the most members in those plans come first; each links to its 2027 plan list.
| County | Plans open to all | $0 premium | Plans that end or leave | Their members here |
|---|---|---|---|---|
| Cook | 48 | 39 | 12 | 12,274 |
| McHenry | 26 | 21 | 24 | 8,653 |
| DuPage | 44 | 36 | 13 | 4,415 |
| Will | 45 | 37 | 13 | 2,711 |
| Peoria | 20 | 13 | 11 | 2,698 |
| Lake | 32 | 27 | 13 | 2,436 |
| Kane | 40 | 34 | 14 | 2,435 |
| Madison | 38 | 27 | 16 | 2,239 |
| Tazewell | 20 | 13 | 8 | 2,175 |
| St. Clair | 39 | 27 | 14 | 1,858 |
| Williamson | 5 | 4 | 9 | 1,527 |
| Randolph | 10 | 8 | 18 | 1,430 |
| Champaign | 17 | 12 | 3 | 1,151 |
| Piatt | 16 | 12 | 10 | 934 |
| Vermilion | 18 | 12 | 5 | 850 |
| Kankakee | 36 | 30 | 17 | 821 |
| Monroe | 32 | 21 | 11 | 683 |
| Knox | 20 | 13 | 6 | 666 |
| Jackson | 15 | 11 | 8 | 637 |
| Morgan | 17 | 12 | 10 | 607 |
| Winnebago | 26 | 20 | 12 | 593 |
| Shelby | 15 | 11 | 7 | 555 |
| Kendall | 30 | 25 | 11 | 540 |
| Franklin | 13 | 9 | 8 | 489 |
| Logan | 18 | 13 | 7 | 456 |
| Woodford | 15 | 10 | 11 | 410 |
| Adams | 16 | 11 | 5 | 399 |
| McLean | 19 | 12 | 9 | 397 |
| Iroquois | 21 | 16 | 9 | 394 |
| Macoupin | 26 | 18 | 13 | 376 |
| DeKalb | 22 | 17 | 6 | 348 |
| De Witt | 18 | 13 | 6 | 340 |
| Ford | 16 | 12 | 8 | 320 |
| Sangamon | 22 | 15 | 4 | 276 |
| Edgar | 14 | 10 | 7 | 267 |
| Livingston | 18 | 13 | 10 | 265 |
| La Salle | 26 | 19 | 9 | 262 |
| Cass | 18 | 13 | 10 | 260 |
| Ogle | 25 | 19 | 10 | 245 |
| Saline | 11 | 8 | 5 | 238 |
| Marion | 13 | 9 | 7 | 221 |
| Menard | 17 | 12 | 8 | 205 |
| Rock Island | 24 | 17 | 6 | 177 |
| Union | 20 | 15 | 8 | 168 |
| Johnson | 16 | 12 | 7 | 162 |
| Richland | 15 | 9 | 8 | 141 |
| Jefferson | 13 | 9 | 8 | 135 |
| Clinton | 38 | 28 | 11 | 134 |
| Schuyler | 16 | 10 | 7 | 131 |
| Lawrence | 15 | 10 | 7 | 124 |
| Macon | 16 | 10 | 3 | 124 |
| Massac | 14 | 11 | 3 | 116 |
| Washington | 23 | 17 | 17 | 115 |
| Boone | 26 | 20 | 11 | 108 |
| Jersey | 35 | 26 | 11 | 108 |
| Bond | 36 | 27 | 9 | 101 |
| Perry | 18 | 14 | 10 | 96 |
| Warren | 13 | 9 | 6 | 95 |
| Grundy | 29 | 23 | 6 | 84 |
| Coles | 16 | 11 | 5 | 82 |
| Wayne | 15 | 10 | 8 | 72 |
| White | 15 | 10 | 5 | 72 |
| Pike | 17 | 12 | 11 | 71 |
| Greene | 24 | 17 | 11 | 64 |
| Lee | 24 | 17 | 7 | 64 |
| Brown | 15 | 10 | 10 | 59 |
| Crawford | 18 | 12 | 5 | 59 |
| Henry | 24 | 18 | 3 | 57 |
| Stephenson | 24 | 18 | 11 | 56 |
| Pulaski | 14 | 11 | 8 | 54 |
| Bureau | 23 | 17 | 7 | 50 |
| Alexander | 18 | 14 | 8 | 48 |
| Christian | 20 | 14 | 6 | 48 |
| Montgomery | 26 | 19 | 9 | 46 |
| Hancock | 14 | 9 | 4 | 43 |
| Wabash | 15 | 10 | 7 | 42 |
| Fulton | 18 | 12 | 3 | 40 |
| Mercer | 18 | 13 | 6 | 34 |
| Effingham | 13 | 9 | 4 | 32 |
| Whiteside | 18 | 13 | 6 | 31 |
| Fayette | 21 | 16 | 6 | 29 |
| Gallatin | 13 | 9 | 8 | 24 |
| Pope | 16 | 12 | 8 | 24 |
| Edwards | 15 | 10 | 7 | 23 |
| Marshall | 22 | 16 | 8 | 22 |
| Hamilton | 13 | 9 | 8 | 21 |
| Hardin | 13 | 9 | 8 | 18 |
| McDonough | 17 | 11 | 4 | 18 |
| Clark | 19 | 12 | 5 | 11 |
| Jo Daviess | 23 | 14 | 5 | 11 |
| Calhoun | 33 | 27 | 10 | 0 |
| Carroll | 18 | 13 | 4 | 0 |
| Clay | 16 | 11 | 5 | 0 |
| Cumberland | 16 | 11 | 5 | 0 |
| Douglas | 22 | 16 | 3 | 0 |
| Henderson | 19 | 13 | 3 | 0 |
| Jasper | 16 | 10 | 5 | 0 |
| Mason | 18 | 12 | 7 | 0 |
| Moultrie | 21 | 15 | 8 | 0 |
| Putnam | 20 | 14 | 7 | 0 |
| Scott | 20 | 14 | 7 | 0 |
| Stark | 19 | 13 | 5 | 0 |
Source: CMS Medicare Advantage and Part D landscape files for 2027 (Sept. 22, 2026, revised Sept. 30) and 2026 (Sept. 2, 2026 revision); CMS plan crosswalk from 2026 to 2027 (Oct. 1, 2026); CMS monthly enrollment by plan and by county, September 2026 (CMS hides counts under 11).
Which large plans sold in Illinois end?
| 2026 plan | Brand | Members in all states, Sept. 2026 |
|---|---|---|
| AARP Medicare Advantage from UHC ST-2H2406-069 | UnitedHealthcare | 7,714 |
| Blue Cross Medicare Advantage Choice PlusH8634-003 | Blue Cross and Blue Shield of IL, NM, OK, TX | 6,729 |
| Aetna Medicare SignatureH7301-027 | Aetna Medicare | 5,861 |
| Humana Full AccessH5216-412 | Humana | 5,073 |
| Aetna Medicare Duly PrimeH5521-314 | Aetna Medicare | 3,035 |
| Blue Cross Medicare Advantage Choice PremierH8634-004 | Blue Cross and Blue Shield of IL, NM, OK, TX | 3,031 |
| Blue Cross Medicare Advantage Basic PlusH3822-007 | Blue Cross and Blue Shield of IL, NM | 2,489 |
| Humana Full AccessH7617-009 | Humana | 2,455 |
| Aetna Medicare SignatureH2663-017 | Aetna Medicare | 2,157 |
| Blue Cross Medicare Advantage SecureH8547-001 | Blue Cross and Blue Shield of Illinois | 1,537 |
Source: CMS plan crosswalk from 2026 to 2027 (Oct. 1, 2026); CMS monthly enrollment by plan and by county, September 2026 (CMS hides counts under 11).
Which plans in Illinois lower the Part B premium?
29 plans open to everyone and sold in at least one Illinois county pay part of the Part B premium in 2027; the largest reduction comes first.
Show the other 9 giveback plans
| 2027 plan | Brand | Monthly reduction |
|---|---|---|
| Humana Essentials Plus GivebackH0028-065 | Humana | $60 |
| Humana Essentials Plus GivebackH4461-045 | Humana | $60 |
| HumanaChoice GivebackH5216-403 | Humana | $51 |
| HumanaChoice GivebackH7617-013 | Humana | $51 |
| Humana Essentials Plus GivebackH1468-021 | Humana | $50 |
| Wellcare GivebackH5779-010 | Wellcare | $37 |
| HealthSpring True Choice SavingsH7849-080 | HealthSpring | $34 |
| Humana USAA Honor GivebackR5361-001 | Humana | $30 |
| Aetna Medicare Advantra Signature ExtraH7301-006 | Aetna Medicare | $25 |
Source: CMS plan benefit package files, 2027 and 2026; CMS Medicare Advantage and Part D landscape files for 2027 (Sept. 22, 2026, revised Sept. 30) and 2026 (Sept. 2, 2026 revision).
1,098,758 of Illinois's 2,500,594 people with Medicare were in a Medicare Advantage plan in September 2026 (44%).
What else should you check?
- Every plan not offered in 2027By company and state
- Part B giveback plansWhere they are sold
- Every statePlan counts for 2027