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Markets/Illinois

Healthcare providers and owners in Illinois

Data as of 2026-10-27. Sources: CMS, NPPES and state records; see methodology.

Hospitals
186
Hospital outpatient sites
196
ERs, clinics and campuses
Urgent care centers
509
Nursing homes
610
CMS-certified skilled nursing

Largest hospital systems in Illinois

OSF Healthcare13 · 7.0%Hospital Sisters Healthcare Sys…10 · 5.4%Advocate Health8 · 4.3%The Carle Foundation8 · 4.3%Prime Healthcare Holdings Inc6 · 3.2%Southern Illinois Healthcare6 · 3.2%Memorial Health System5 · 2.7%Universal Health Services5 · 2.7%NorthShore University HealthSys…5 · 2.7%U.S. Department of Veterans Aff…5 · 2.7%
Systems and operators named in public records (CMS ownership, company disclosures); hospitals whose owner is not yet confirmed are left out.

Hospital systems and their outpatient sites in Illinois

All 186 hospitals and 196 hospital outpatient sites, ERs and clinics, tied to the systems that own them, in the full report.

Request the report

Largest urgent care operators in Illinois

Advocate Health28 · 5.5%Midwest Express Clinic23 · 4.5%OSF Healthcare21 · 4.1%Northwestern Medicine18 · 3.5%Midwest Express Care 2 Inc17 · 3.3%American Current Care of Illino…16 · 3.1%Insight Chicago, Inc.5 · 1.0%Medexpress Urgent Care Illinois…5 · 1.0%Toofan Medical Holdings, Ltd4 · 0.8%E Mediate Cure LLC4 · 0.8%
Each block is 2 urgent care centers.

Largest nursing home groups in Illinois

Legacy Healthcare41 · 6.7%The Alden Network24 · 3.9%Arcadia Care19 · 3.1%Aperion Care19 · 3.1%Wlc Management Firm17 · 2.8%Infinity Healthcare Consulting16 · 2.6%Citadel Healthcare15 · 2.5%Allure Healthcare Services14 · 2.3%Aliya Healthcare14 · 2.3%Pearl Healthcare14 · 2.3%
Groups are CMS affiliated entities: homes that share owners or managers.

Counties

94
CountyHospitalsNursing homesUrgent care
Adams County161
Bond County110
Boone County032
Brown County010
Bureau County131
Carroll County010
Cass County020
Champaign County345
Christian County220
Clark County030
Clay County120
Clinton County140
Coles County141
Cook County51191262
Crawford County110
Cumberland County020
De Witt County110
DeKalb County174
Douglas County030
DuPage County73566
Edgar County130
Edwards County000
Effingham County141
Fayette County131
Ford County140
Franklin County140
Fulton County151
Gallatin County010
Greene County110
Grundy County121
Hamilton County110
Hancock County100
Henderson County010
Henry County250
Iroquois County140
Jackson County220
Jasper County010
Jefferson County243
Jersey County130
Jo Daviess County010
Johnson County010
Kane County62219
Kankakee County252
Kendall County024
Knox County161
Lake County82228
LaSalle County194
Lawrence County110
Lee County122
Livingston County060
Logan County121
Macon County263
Macoupin County150
Madison County6168
Marion County242
Marshall County030
Mason County120
Massac County120
McDonough County130
McHenry County2810
McLean County265
Mercer County120
Monroe County021
Montgomery County230
Morgan County150
Moultrie County020
Ogle County140
Peoria County495
Perry County130
Piatt County120
Pike County130
Randolph County330
Richland County120
Rock Island County298
Saline County151
Sangamon County371
Schuyler County110
Scott County010
Shelby County130
St. Clair County4159
Stephenson County152
Tazewell County273
Union County220
Vermilion County342
Wabash County110
Warren County121
Washington County110
Wayne County120
White County020
Whiteside County260
Will County41331
Williamson County651
Winnebago County4145
Woodford County171

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