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Hospitals in Illinois with the lowest serious complications

115 Illinois hospitals ranked by serious complications in the 2026 Medicare (CMS) data. Filter by type, ownership and size, choose the measures you care about, and sort by any column.

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115 hospitals ranked in Illinois by serious complications; 78 more match but have no reported value.

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#HospitalSerious complicationslower is betterOverall star ratinghigher is betterPatient survey star ratinghigher is betterHeart attack death ratelower is betterHeart failure death ratelower is betterHospital-wide readmission ratelower is better · 2025 dataTime in emergency departmentlower is betterMedicare spending per patientlower is betterTotal beds
National average1.003.311.9%11.1%15.0%162 min1.00
101Advocate Good Samaritan HospitalDowners Grove, IL · Acute care1.164310.9%8.6%14.9%187 min0.98366Compare
102Memorial Hospital Of CarbondaleCarbondale, IL · Acute care1.191312.0%10.4%16.1%161 min1.07140Compare
103Mt Sinai Hospital Medical CenterChicago, IL · Acute care1.2012—9.8%16.3%200 min0.99431Compare
104OSF Saint Katharine Medical CenterDixon, IL · Acute care1.212312.4%12.2%14.6%180 min0.9680Compare
105West Suburban Medical CenterOak Park, IL · Acute care1.2611—9.9%16.0%272 min0.95287Compare
106Palos Community HospitalPalos Heights, IL · Acute care1.284311.1%8.3%15.5%252 min0.99436Compare
107Amita Health Resurrection Medical CenterChicago, IL · Acute care1.303211.8%10.1%14.0%186 min1.12443Compare
108Louis A Weiss Memorial HospitalChicago, IL · Acute care1.321—13.2%8.4%16.1%210 min1.12—Compare
T109Loyola University Medical CenterMaywood, IL · Acute care1.372310.5%10.4%16.0%275 min0.98507Compare
T109Saint Joseph Medical CenterJoliet, IL · Acute care1.371213.0%9.4%15.6%197 min1.07443Compare
111Advocate Illinois Masonic Medical CenterChicago, IL · Acute care1.423312.3%8.1%16.2%237 min1.01997Compare
112Hines VA Medical CenterHines, IL · Veterans Affairs1.433410.3%8.0%15.6%——1,850Compare
113Memorial Medical CenterSpringfield, IL · Acute care1.483313.1%11.8%14.8%241 min1.03562Compare
114St Johns HospitalSpringfield, IL · Acute care1.532212.3%12.3%14.9%160 min1.05731Compare
115St Marys HospitalDecatur, IL · Acute care1.671311.8%12.3%15.1%148 min1.00355Compare

About these rankings

Rankings use the 2026 release of CMS Care Compare data. Hospitals share a rank (“T”) when their values are equal, and only hospitals with a reported value for the sorted measure are ranked. Shading compares each value with every hospital in the country, so it doesn’t change with your filters. Small differences are often not statistically meaningful; use the methodology and glossary for context.

Serious complications
Patient safety and adverse events composite (PSI 90; 1.0 = national value).
Overall star rating
CMS overall hospital quality star rating (1-5).
Patient survey star rating
HCAHPS summary star rating (1-5).
Heart attack death rate
30-day death rate for heart attack patients.
Heart failure death rate
30-day death rate for heart failure patients.
Hospital-wide readmission rate
Rate of unplanned readmission within 30 days, all conditions. From 2025 CMS reports the Hybrid Hospital-Wide Readmission measure (claims plus EHR data), which replaced the claims-only measure; values are close but not strictly comparable across the change. CMS suppressed it for 2026.. Latest available: 2025 release.
Time in emergency department
Median time patients spent in the emergency department before leaving.
Medicare spending per patient
Medicare spending per beneficiary episode relative to the national median (1.0 = national median).
Total beds
Total beds reported to CMS (Provider of Services file).