Hospitals in St. Clair County, Illinois

3 Medicare-certified hospitals serve St. Clair County, averaging 4.5 out of 5 overall among rated providers. Below are provider profiles with CMS ratings, inspections, staffing, and ownership.

Browse: Hospitals in Illinois · all care types in St. Clair County · Cities: O Fallon, Belleville, Centreville

Hospitals profiles in St. Clair County

Hospital · Voluntary non-profit - Church HSHS St Elizabeth's Hospital O Fallon, IL 62269 CMS rating 4.0 / 5 Hospital · Voluntary non-profit - Private Memorial Hospital Belleville, IL 62226 CMS rating 5.0 / 5 Hospital · Voluntary non-profit - Private Touchette Regional Hospital INC Centreville, IL 62207 Not CMS-rated

Cities in St. Clair County

O Fallon, IL 1 facilities Belleville, IL 1 facilities Centreville, IL 1 facilities

Choosing a hospital in St. Clair County

When comparing hospitals, review the CMS overall rating and the underlying measure groups, confirm that the services you need are offered, and check whether the hospital participates in your insurance network. Ratings are signals, not medical advice.

Start by comparing CMS Five-Star ratings, which summarize health inspections, staffing, and quality measures. A high overall rating is a useful signal, but read the underlying inspection findings and staffing figures too - they show what is behind the score.

If you are choosing for yourself or a family member in St. Clair County, visit in person when possible, ask about current availability, and confirm participation in Medicare and Medicaid. Ask how the provider handles care planning, family communication, and after-hours concerns.

Frequently asked questions

How many hospitals are in St. Clair County?

The current CMS data lists 3 Medicare-certified hospitals in St. Clair County, Illinois, with an average overall CMS rating of 4.5 out of 5 among rated providers.

Which cities in St. Clair County have hospitals?

O Fallon, Belleville, Centreville have Medicare-certified hospitals in the current data.

Data sources

Source: CMS Provider Data Catalog. Data processing date: 2026-10-06.

Important disclosures

Informational only, not medical advice. This directory publishes public data and general information. It does not provide medical advice, diagnosis, or treatment recommendations, and it is not a substitute for consulting a qualified health care professional or Medicare.

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Verify before you act. Facility information is derived from public federal datasets and may lag or contain errors. Always confirm current ratings, services, availability, and coverage directly with the provider and at Medicare.gov.

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