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 150 of 194 hospitals on this page (page 3 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 101–150 of 194 hospitals

Hospital	City	Type	Rating	ER
Memorial Hospital Chester	Chester	Critical Access Hospitals	N/A	Yes
Memorial Hospital of Carbondale Carbondale	Carbondale	Acute Care Hospitals	1	Yes
Memorial Medical Center Springfield	Springfield	Acute Care Hospitals	3	Yes
Mercy Harvard Hospital Harvard	Harvard	Critical Access Hospitals	N/A	Yes
Mercyhealth Hospital & Physician Clinic-Crystal la Crystal Lake	Crystal Lake	Acute Care Hospitals	N/A	Yes
Methodist Hospital of Chicago Chicago	Chicago	Acute Care Hospitals	N/A	Yes
Midwest Medical Center Galena	Galena	Critical Access Hospitals	N/A	Yes
Midwestern Region Med Center, Inc Zion	Zion	Acute Care Hospitals	4	Yes
Montrose Behavioral Health Hospital Chicago	Chicago	Psychiatric	N/A	Yes
Morris Hospital & Healthcare Centers Morris	Morris	Acute Care Hospitals	4	Yes
Morrison Community Hospital Morrison	Morrison	Critical Access Hospitals	N/A	Yes
Mt Sinai Hospital Medical Center Chicago	Chicago	Acute Care Hospitals	1	Yes
North Chicago VA Medical Center North Chicago	North Chicago	Acute Care - Veterans Administration	4	Yes
Northshore University Healthsystem - Evanston Hospital Evanston	Evanston	Acute Care Hospitals	5	Yes
Northwest Community Hospital 1 Arlington Heights	Arlington Heights	Acute Care Hospitals	4	Yes
Northwestern Lake Forest Hospital Lake Forest	Lake Forest	Acute Care Hospitals	5	Yes
Northwestern Medicine Central Dupage Hospital Winfield	Winfield	Acute Care Hospitals	5	Yes
Northwestern Medicine Delnor Community Hospital Geneva	Geneva	Acute Care Hospitals	5	Yes
Northwestern Medicine Kishwaukee Hospital Dekalb	Dekalb	Acute Care Hospitals	5	Yes
Northwestern Medicine McHenry McHenry	McHenry	Acute Care Hospitals	5	Yes
Northwestern Memorial Hospital Chicago	Chicago	Acute Care Hospitals	5	Yes
OSF Heart of Mary Medical Center Urbana	Urbana	Acute Care Hospitals	3	Yes
OSF Holy Family Medical Center Monmouth	Monmouth	Critical Access Hospitals	4	Yes
OSF Little Company of Mary Medical Center Evergreen Park	Evergreen Park	Acute Care Hospitals	2	Yes
OSF Sacred Heart Medical Center Danville	Danville	Acute Care Hospitals	2	Yes
OSF Saint Anthony's Health Center Alton	Alton	Acute Care Hospitals	4	No
OSF Saint Clare Medical Center Princeton	Princeton	Critical Access Hospitals	2	Yes
OSF Saint Elizabeth Mdl Ctr Peru	Peru	Acute Care Hospitals	3	Yes
OSF Saint Katharine Medical Center Dixon	Dixon	Acute Care Hospitals	2	Yes
OSF Saint Luke Medical Center Kewanee	Kewanee	Critical Access Hospitals	4	Yes
OSF Saint Paul Medical Center Mendota	Mendota	Critical Access Hospitals	3	Yes
Palos Community Hospital Palos Heights	Palos Heights	Acute Care Hospitals	4	Yes
Pana Community Hospital Pana	Pana	Critical Access Hospitals	4	Yes
Paris Community Hospital Paris	Paris	Critical Access Hospitals	3	Yes
Pinckneyville Community Hospital Pinckneyville	Pinckneyville	Critical Access Hospitals	N/A	Yes
Presence Mercy Medical Center Aurora	Aurora	Acute Care Hospitals	3	Yes
Presence Saint Joseph Hospital - Chicago Chicago	Chicago	Acute Care Hospitals	4	Yes
Presence Saints Mary and Elizabeth Medical Center Chicago	Chicago	Acute Care Hospitals	3	Yes
Presence St Marys Hospital Kankakee	Kankakee	Acute Care Hospitals	4	Yes
Provident Hospital of Chicago Chicago	Chicago	Acute Care Hospitals	N/A	Yes
Red Bud Regional Hospital Red Bud	Red Bud	Critical Access Hospitals	4	Yes
Riverside Medical Center Kankakee	Kankakee	Acute Care Hospitals	4	Yes
Rochelle Community Hospital Rochelle	Rochelle	Critical Access Hospitals	N/A	Yes
Roseland Community Hospital Chicago	Chicago	Acute Care Hospitals	1	Yes
Rush Oak Park Hospital Oak Park	Oak Park	Acute Care Hospitals	4	Yes
Rush University Medical Center Chicago	Chicago	Acute Care Hospitals	5	Yes
Saint Anthony Hospital Chicago	Chicago	Acute Care Hospitals	2	Yes
Saint Anthony Medical Center Rockford	Rockford	Acute Care Hospitals	2	Yes
Saint Francis Hospital-Evanston Evanston	Evanston	Acute Care Hospitals	2	Yes
Saint Francis Medical Center Peoria	Peoria	Acute Care Hospitals	2	Yes

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.