State hospital quality · CMS Hospital Compare

Best CMS-rated hospitals in Illinois

According to PlainHospital's state average CMS-star ranking, Illinois ranks #39 of 54 states and territories by average overall star rating among rated hospitals (highest = #1).

194
Hospitals: #39 of 54
Corpus placement: 3★
Avg (136 rated): 14
Five-star: 175
With ER

Illinois vs all states by Medicare hospital count

Where this state's Medicare-certified hospital inventory sits among every tracked state and territory (inventory signal, not a quality ranking)

194 5th of 56 higher than 51 of 56 states

States and territories, banded by Medicare-certified hospital count

Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source CMS Hospital Compare · 2026-08-14

The state picture

According to PlainHospital's state average CMS-star ranking, Illinois ranks #39 of 54 states and territories by average overall star rating among rated hospitals (highest = #1). Among 136 rated hospitals, the state averages 3 of 5 stars.

3 / 5
state average among rated (below 3.2 national): #39 of 54
state corpus placement by avg star: 14
five-star hospitals: 136 of 194 rated
hospitals with a CMS overall rating

CMS star ratings are composite quality scores; 136 of 194 Illinois hospitals had enough reporting volume to receive one. Not medical advice.

Illinois hospital quality

Illinois averages 3/5 CMS stars across 136 rated hospitals (below the 3.2 national average), with 14 five-star facilities of 194 Medicare-certified hospitals.

PlainHospital ranks Illinois hospitals from CMS Hospital Compare overall star ratings (mortality, safety, readmission, patient experience, timely care). Corpus placement: #39 of 54 states and territories by average overall star among rated hospitals. 136 of 194 facilities had enough volume to receive a star; the rest stay unrated. Not medical advice - open a hospital page for the measure-level detail.

5★

14
4★

35
3★

43
2★

29
1★

15

What this shows 14 Illinois hospitals reach five stars; the state's 3-star average sits below the 3.2-star national mark.

What the Data Shows About Hospitals in Illinois

Illinois has 194 Medicare-certified hospitals tracked by the Centers for Medicare & Medicaid Services (CMS) Hospital Compare program. Of these, 175 facilities operate an emergency department, an important signal for communities that rely on nearby acute-care access. The statewide average CMS overall star rating is 3 out of 5 , calculated across the 136 of 194 hospitals with enough reporting volume to generate a composite rating.

At the top of the quality distribution, 14 hospitals have earned the highest 5-star CMS overall rating in Illinois. The single highest-rated facility in the state registry is Advocate Good Shepherd Hospital in Barrington, currently listed at 5/5 stars. Star ratings are composite scores built from mortality, safety of care, readmission, patient experience (HCAHPS), and timely & effective care domains, so a single number conceals meaningful per-domain variation that matters for specific procedures.

Showing 194 of 194 hospitals on this page (page 4 of 4). Hospital quality varies materially within a state, urban academic centers, rural critical-access hospitals, and specialty facilities report against different baselines, so comparing individual facility profiles before choosing planned care is more useful than relying on the statewide average alone. All figures reflect the CMS Hospital Compare release from 2026-08-14, and nothing on this page is medical advice, consult a qualified clinician before making care decisions.

194

Hospitals

Avg (136 rated)

Five-Star

175

With ER

Top-Rated in Illinois

Highest CMS star ratings among Medicare-certified hospitals in Illinois.

🥇1 Advocate Good Shepherd Hospital Barrington, IL · Acute Care Hospitals ★★★★★
🥈2 Memorial Hospital Belleville, IL · Acute Care Hospitals ★★★★★
🥉3 Northshore University Healthsystem - Evanston Hospital Evanston, IL · Acute Care Hospitals ★★★★★
4 Northwestern Lake Forest Hospital Lake Forest, IL · Acute Care Hospitals ★★★★★
5 Northwestern Medicine Central Dupage Hospital Winfield, IL · Acute Care Hospitals ★★★★★
6 Northwestern Medicine Delnor Community Hospital Geneva, IL · Acute Care Hospitals ★★★★★

Compare Advocate Good Shepherd Hospital vs Memorial Hospital →

All Hospitals

Showing 151–194 of 194 hospitals

Hospital	City	Type	Rating	ER
Saint James Hospital Pontiac	Pontiac	Acute Care Hospitals	4	No
Saint Joseph Hospital-Elgin Elgin	Elgin	Acute Care Hospitals	4	Yes
Saint Joseph Medical Center Joliet	Joliet	Acute Care Hospitals	1	Yes
Salem Township Hospital Salem	Salem	Critical Access Hospitals	4	Yes
Sarah Bush Lincoln Health Center Mattoon	Mattoon	Acute Care Hospitals	3	Yes
Sarah D Culbertson Memorial Hospital Rushville	Rushville	Critical Access Hospitals	N/A	Yes
Shriners Hospital for Children Chicago	Chicago	Childrens	N/A	No
Silver Cross Hospital and Medical Centers New Lenox	New Lenox	Acute Care Hospitals	5	Yes
Silver Oaks Behavioral Hospital New Lenox	New Lenox	Psychiatric	N/A	Yes
South Shore Hospital Chicago	Chicago	Acute Care Hospitals	N/A	Yes
Sparta Community Hospital Sparta	Sparta	Critical Access Hospitals	3	Yes
SSM Health St Mary's Hospital -Centralia Centralia	Centralia	Acute Care Hospitals	3	Yes
St Alexius Medical Center Hoffman Estates	Hoffman Estates	Acute Care Hospitals	5	Yes
St Anthonys Memorial Hospital Effingham	Effingham	Acute Care Hospitals	3	Yes
St Bernard Hospital Chicago	Chicago	Acute Care Hospitals	1	Yes
St Francis Hospital Litchfield	Litchfield	Critical Access Hospitals	2	Yes
St Johns Hospital Springfield	Springfield	Acute Care Hospitals	2	Yes
St Joseph Medical Center Bloomington	Bloomington	Acute Care Hospitals	2	Yes
St Joseph Memorial Hospital Murphysboro	Murphysboro	Critical Access Hospitals	N/A	Yes
St Joseph's Hospital Highland	Highland	Critical Access Hospitals	3	Yes
St Josephs Hospital Breese	Breese	Acute Care Hospitals	4	Yes
St Mary Medical Center Galesburg	Galesburg	Acute Care Hospitals	2	Yes
St Marys Hospital Decatur	Decatur	Acute Care Hospitals	1	Yes
Swedish Hospital Chicago	Chicago	Acute Care Hospitals	3	Yes
Taylorville Memorial Hospital Taylorville	Taylorville	Critical Access Hospitals	2	Yes
The Pavilion Champaign	Champaign	Psychiatric	N/A	No
The University of Chicago Medical Center Chicago	Chicago	Acute Care Hospitals	4	Yes
Thomas H Boyd Memorial Hospital Carrollton	Carrollton	Critical Access Hospitals	N/A	Yes
Thorek Memorial Hospital Chicago	Chicago	Acute Care Hospitals	N/A	Yes
Touchette Regional Hospital Inc Centreville	Centreville	Acute Care Hospitals	N/A	Yes
Trinity Rock Island Rock Island	Rock Island	Acute Care Hospitals	3	Yes
Uchicago Medicine Adventhealth Bolingbrook Bolingbrook	Bolingbrook	Acute Care Hospitals	3	Yes
Uchicago Medicine Adventhealth Glenoaks Glendale Heights	Glendale Heights	Acute Care Hospitals	3	Yes
Uchicago Medicine Adventhealth Hinsdale Hinsdale	Hinsdale	Acute Care Hospitals	5	Yes
Uchicago Medicine Adventhealth la Grange La Grange	La Grange	Acute Care Hospitals	5	Yes
University of Illinois Hospital and Clinics Chicago	Chicago	Acute Care Hospitals	4	Yes
Uw Health Rockford	Rockford	Acute Care Hospitals	3	Yes
VA Illiana Healthcare System - Danville Danville	Danville	Acute Care - Veterans Administration	N/A	No
Valley West Community Hospital Sandwich	Sandwich	Critical Access Hospitals	4	Yes
Vista Medical Center East Waukegan	Waukegan	Acute Care Hospitals	2	Yes
Wabash General Hospital 1 Mount Carmel	Mount Carmel	Critical Access Hospitals	N/A	Yes
Warner Hospital and Health Services Clinton	Clinton	Critical Access Hospitals	N/A	Yes
Washington County Hospital Nashville	Nashville	Critical Access Hospitals	N/A	Yes
West Suburban Medical Center Oak Park	Oak Park	Acute Care Hospitals	1	No

Hospital Quality in Illinois

Illinois has 194 Medicare-certified hospitals tracked by the Centers for Medicare & Medicaid Services (CMS). Of these, 14 have earned the highest 5-star overall quality rating, reflecting strong performance across mortality, safety of care, readmission rates, patient experience, and timely and effective care measures.

The average CMS star rating across the 136 rated of 194 Illinois hospitals is 3. 175 facilities have emergency departments, an important factor for communities that depend on nearby acute care. Hospital quality can vary significantly within a state, so comparing individual facility ratings before choosing care is recommended.

Frequently Asked Questions

What is the best hospital in Illinois? ▼

The highest-rated hospital in Illinois is Advocate Good Shepherd Hospital in Barrington with a CMS star rating of 5/5. There are 14 five-star hospitals in the state out of 194 Medicare-certified facilities.

How are hospitals rated? ▼

CMS rates hospitals on a 1-to-5 star scale based on quality measures including mortality, safety, patient experience, readmission rates, and timely care. In Illinois, the average star rating is 3 across rated hospitals.

How many hospitals are in Illinois? ▼

Illinois has 194 Medicare-certified hospitals, of which 175 have emergency departments. 14 hospitals have earned the highest 5-star CMS rating.

Data from CMS Hospital Compare; patient-experience scores from the HCAHPS survey. Last refreshed: 2026-08-14. About PlainHospital and our data sources

Read our methodology - how this data is sourced, computed, and verified.

Compiled by PlainHospital, Hospital Quality Editorial Process · August 14, 2026

Every figure on PlainHospital is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.