Acute Care Hospital

Advocate Illinois Masonic Medical Center (Acute Care)

836 West Wellington Avenue, Chicago, IL 60657
24/7 Emergency Services
3 out of 5 Stars Why 3 stars? Advocate Illinois Masonic Medical Center (Acute Care)'s 3-star rating reflects above-average performance on Timely Care and below-average performance on Readmissions.

CMS Overall Hospital Quality Star Rating · Advocate Illinois Masonic Medical Center (Acute Care)

How was Advocate Illinois Masonic Medical Center (Acute Care)'s 3-star rating calculated?

The CMS Overall Hospital Quality Star Rating applies to acute care hospitals like Advocate Illinois Masonic Medical Center (Acute Care). CMS standardizes every underlying measure against the national rate, computes a weighted score for each of five domains, sums them by the fixed weights below, and assigns 1–5 stars using k-means clustering across all reporting hospitals.

Domains that fed Advocate Illinois Masonic Medical Center (Acute Care)'s rating
Domain Weight Measures reported Hospital performance vs. national
Mortality 22% 6 of 7 1 better 5 same 0 worse
Safety of Care 22% 18 of 19 2 better 13 same 3 worse
Readmissions 22% 4 of 6 0 better 2 same 2 worse
Timely & Effective Care 12% 15 of 22 9 better 3 same 3 worse
Patient Experience 22% HCAHPS See HCAHPS detail below

How star meaning varies by hospital type. This CMS Overall Star Rating only applies to acute care hospitals. Children's hospitals (Pediatric Quality), psychiatric hospitals (IPFQR), inpatient rehabilitation facilities (IRF QRP), long-term acute care hospitals (LTACH QRP), and VA medical centers each use separate quality programs designed for their patient populations. Comparing star ratings across these facility types isn't meaningful — see the methodology page for the full mapping of which program applies to which facility.

How CareRanks computes ratings → · CMS official methodology ↗

Quality measures

Mortality

Same as National Average

Measures the rate at which patients die within 30 days of hospital admission for specific conditions. A lower mortality rate indicates better outcomes.

Underlying measures: Death rate for stroke patients Better Than the National Rate Hospital score: 10.40 95% interval: 8.00 – 13.10 Sample size: 98 Reporting period: 07/01/2021 – 06/30/2024 CMS measure id: MORT_30_STK Hybrid Hospital-Wide All-Cause Risk Standardized Mortality Rate No Different Than the National Rate Hospital score: 3.60 95% interval: 3.00 – 4.30 Sample size: 816 Reporting period: 07/01/2023 – 06/30/2024 CMS measure id: Hybrid_HWM Death rate for COPD patients No Different Than the National Rate Hospital score: 8.10 95% interval: 5.10 – 12.50 Sample size: 36 Reporting period: 07/01/2021 – 06/30/2024 CMS measure id: MORT_30_COPD Death rate for heart attack patients No Different Than the National Rate Hospital score: 12.90 95% interval: 9.50 – 17.20 Sample size: 55 Reporting period: 07/01/2021 – 06/30/2024 CMS measure id: MORT_30_AMI Death rate for heart failure patients No Different Than the National Rate Hospital score: 8.80 95% interval: 6.30 – 11.80 Sample size: 246 Reporting period: 07/01/2021 – 06/30/2024 CMS measure id: MORT_30_HF Death rate for pneumonia patients No Different Than the National Rate Hospital score: 15.20 95% interval: 11.70 – 19.50 Sample size: 160 Reporting period: 07/01/2021 – 06/30/2024 CMS measure id: MORT_30_PN Death rate for CABG surgery patients Number of Cases Too Small Hospital score: — Reporting period: 07/01/2021 – 06/30/2024 CMS measure id: MORT_30_CABG

Safety of Care

Same as National Average

Tracks hospital-acquired infections, surgical complications, and other patient safety indicators. Lower rates indicate better safety practices.

Underlying measures: Clostridium Difficile (C.Diff) Better than the National Benchmark Hospital score: 0.37 SIR Reporting period: 07/01/2024 – 06/30/2025 CMS measure id: HAI_6_SIR Catheter Associated Urinary Tract Infections (ICU + select Wards) Better than the National Benchmark Hospital score: 0.29 SIR Reporting period: 07/01/2024 – 06/30/2025 CMS measure id: HAI_2_SIR Abdominopelvic accidental puncture or laceration rate No Different Than the National Rate Hospital score: 1.31 95% interval: 0.34 – 2.29 Sample size: 746 Reporting period: 07/01/2022 – 06/30/2024 CMS measure id: PSI_15 Central Line Associated Bloodstream Infection (ICU + select Wards) No Different than National Benchmark Hospital score: 0.83 SIR Reporting period: 07/01/2024 – 06/30/2025 CMS measure id: HAI_1_SIR Iatrogenic pneumothorax rate No Different Than the National Rate Hospital score: 0.29 95% interval: 0.07 – 0.51 Sample size: 3,801 Reporting period: 07/01/2022 – 06/30/2024 CMS measure id: PSI_06 In-hospital fall-associated fracture rate No Different Than the National Rate Hospital score: 0.23 95% interval: 0.03 – 0.43 Sample size: 3,798 Reporting period: 07/01/2022 – 06/30/2024 CMS measure id: PSI_08 MRSA Bacteremia No Different than National Benchmark Hospital score: 0.46 SIR Reporting period: 07/01/2024 – 06/30/2025 CMS measure id: HAI_5_SIR Postoperative hemorrhage or hematoma rate No Different Than the National Rate Hospital score: 2.05 95% interval: 0.53 – 3.57 Sample size: 865 Reporting period: 07/01/2022 – 06/30/2024 CMS measure id: PSI_09 Perioperative pulmonary embolism or deep vein thrombosis rate No Different Than the National Rate Hospital score: 3.99 95% interval: 1.85 – 6.13 Sample size: 938 Reporting period: 07/01/2022 – 06/30/2024 CMS measure id: PSI_12 Postoperative acute kidney injury requiring dialysis rate No Different Than the National Rate Hospital score: 2.62 95% interval: 1.03 – 4.22 Sample size: 356 Reporting period: 07/01/2022 – 06/30/2024 CMS measure id: PSI_10 Pressure ulcer rate No Different Than the National Rate Hospital score: 0.65 95% interval: 0.00 – 1.39 Sample size: 3,096 Reporting period: 07/01/2022 – 06/30/2024 CMS measure id: PSI_03 SSI - Abdominal Hysterectomy No Different than National Benchmark Hospital score: 0.38 SIR Reporting period: 07/01/2024 – 06/30/2025 CMS measure id: HAI_4_SIR SSI - Colon Surgery No Different than National Benchmark Hospital score: 0.54 SIR Reporting period: 07/01/2024 – 06/30/2025 CMS measure id: HAI_3_SIR Death rate among surgical inpatients with serious treatable complications No Different Than the National Rate Hospital score: 170.84 95% interval: 118.40 – 223.28 Sample size: 68 Reporting period: 07/01/2022 – 06/30/2024 CMS measure id: PSI_04 Postoperative wound dehiscence rate No Different Than the National Rate Hospital score: 1.64 95% interval: 0.16 – 3.12 Sample size: 226 Reporting period: 07/01/2022 – 06/30/2024 CMS measure id: PSI_14 Postoperative respiratory failure rate Worse Than the National Rate Hospital score: 17.29 95% interval: 10.23 – 24.34 Sample size: 361 Reporting period: 07/01/2022 – 06/30/2024 CMS measure id: PSI_11 Postoperative sepsis rate Worse Than the National Rate Hospital score: 9.29 95% interval: 5.61 – 12.98 Sample size: 356 Reporting period: 07/01/2022 – 06/30/2024 CMS measure id: PSI_13 CMS Medicare PSI 90: Patient safety and adverse events composite Worse Than the National Value Hospital score: 1.42 95% interval: 1.08 – 1.76 Reporting period: 07/01/2022 – 06/30/2024 CMS measure id: PSI_90 Rate of complications for hip/knee replacement patients Number of Cases Too Small Hospital score: — Reporting period: 04/01/2021 – 03/31/2024 CMS measure id: COMP_HIP_KNEE

Readmissions

Below National Average

Measures how often patients return to the hospital within 30 days of discharge. Lower readmission rates suggest effective treatment and discharge planning.

Underlying measures: 30-day Readmission, Heart Attack As expected Hospital score: 1.00 Reporting period: 07/01/2021 – 06/30/2024 CMS measure id: READM-30-AMI-HRRP 30-day Readmission, Pneumonia As expected Hospital score: 0.99 Sample size: 172 Reporting period: 07/01/2021 – 06/30/2024 CMS measure id: READM-30-PN-HRRP 30-day Readmission, COPD Worse than expected Hospital score: 1.07 Sample size: 45 Reporting period: 07/01/2021 – 06/30/2024 CMS measure id: READM-30-COPD-HRRP 30-day Readmission, Heart Failure Worse than expected Hospital score: 1.09 Sample size: 275 Reporting period: 07/01/2021 – 06/30/2024 CMS measure id: READM-30-HF-HRRP 30-day Readmission, Bypass Surgery Hospital score: — Reporting period: 07/01/2021 – 06/30/2024 CMS measure id: READM-30-CABG-HRRP 30-day Readmission, Hip/Knee Replacement Hospital score: — Reporting period: 07/01/2021 – 06/30/2024 CMS measure id: READM-30-HIP-KNEE-HRRP

Patient Experience

Same as National Average

Based on the HCAHPS survey — patient satisfaction with communication, cleanliness, pain management, and discharge information.

Patient survey detail — the questions feeding the Patient Experience domain above expand ↓

CMS computes the Patient Experience domain from the federal HCAHPS survey. Each bar below is one survey question; the percentage is the share of Advocate's recent patients who gave the most positive response. HCAHPS percentages aren't directly comparable across all measures — see the methodology page for how CMS weights them.

  • Communication with Nurses 79%
  • Communication with Doctors 77%
  • Hospital Cleanliness 67%
  • Hospital Quietness 51%
  • Staff Responsiveness N/A
  • Discharge Information 88%
  • Overall Hospital Rating (9 or 10) 68%
  • Would Recommend Hospital 70%

Percentages represent patients who gave the most positive response. Survey conducted by CMS through the HCAHPS program.

Timely & Effective Care

Better than National Average

Measures how quickly the hospital provides important treatments such as antibiotics for pneumonia or interventions for heart attacks.

Underlying measures: Discharged on Antithrombotic Therapy Better than ~75% of hospitals Hospital score: 99.00 % National median: 98.00 % (higher is better) Sample size: 140 Reporting period: 01/01/2024 – 12/31/2024 CMS measure id: STK_02 Safe Use of Opioids - Concurrent Prescribing Better than ~75% of hospitals Hospital score: 10.00 % National median: 15.00 % (lower is better) Sample size: 2,283 Reporting period: 01/01/2024 – 12/31/2024 CMS measure id: SAFE_USE_OF_OPIOIDS Intensive Care Unit Venous Thromboembolism Prophylaxis Better than ~75% of hospitals Hospital score: 100.00 % National median: 97.00 % (higher is better) Sample size: 1,616 Reporting period: 01/01/2024 – 12/31/2024 CMS measure id: VTE_2 Appropriate care for severe sepsis and septic shock Better than ~75% of hospitals Hospital score: 85.00 % National median: 64.00 % (higher is better) Sample size: 171 Reporting period: 07/01/2024 – 06/30/2025 CMS measure id: SEP_1 Septic Shock 3-Hour Bundle Better than ~75% of hospitals Hospital score: 85.00 % National median: 72.00 % (higher is better) Sample size: 67 Reporting period: 07/01/2024 – 06/30/2025 CMS measure id: SEP_SH_3HR Septic Shock 6-Hour Bundle Better than ~75% of hospitals Hospital score: 96.00 % National median: 89.00 % (higher is better) Sample size: 51 Reporting period: 07/01/2024 – 06/30/2025 CMS measure id: SEP_SH_6HR Severe Sepsis 3-Hour Bundle Better than ~75% of hospitals Hospital score: 94.00 % National median: 81.00 % (higher is better) Sample size: 172 Reporting period: 07/01/2024 – 06/30/2025 CMS measure id: SEV_SEP_3HR Severe Sepsis 6-Hour Bundle Better than ~75% of hospitals Hospital score: 98.00 % National median: 94.00 % (higher is better) Sample size: 120 Reporting period: 07/01/2024 – 06/30/2025 CMS measure id: SEV_SEP_6HR Venous Thromboembolism Prophylaxis Better than ~75% of hospitals Hospital score: 98.00 % National median: 90.00 % (higher is better) Sample size: 4,692 Reporting period: 01/01/2024 – 12/31/2024 CMS measure id: VTE_1 Endoscopy/polyp surveillance: appropriate follow-up interval for normal colonoscopy in average risk patients Near the national median Hospital score: 97.00 % National median: 97.00 % (higher is better) Sample size: 97 Reporting period: 01/01/2024 – 12/31/2024 CMS measure id: OP_29 Average (median) time psychiatric/mental health patients spent in the emergency department before leaving from the visit. A lower number of minutes is better Near the national median Hospital score: 311.00 min National median: 248.00 min (lower is better) Sample size: 25 Reporting period: 07/01/2024 – 06/30/2025 CMS measure id: OP_18c Healthcare workers given influenza vaccination Near the national median Hospital score: 84.00 % National median: 79.00 % (higher is better) Sample size: 3,913 Reporting period: 10/01/2024 – 03/31/2025 CMS measure id: IMM_3 Average (median) time patients spent in the emergency department before leaving from the visit, excluding patients transferred to another facility or psychiatric care/mental health patients. A lower number of minutes is better Worse than ~75% of hospitals Hospital score: 236.00 min National median: 148.00 min (lower is better) Sample size: 371 Reporting period: 07/01/2024 – 06/30/2025 CMS measure id: OP_18b Average (median) time all patients spent in the emergency department before leaving from the visit, including psychiatric/mental health patients and patients who were transferred to another facility. A lower number of minutes is better Worse than ~75% of hospitals Hospital score: 239.00 min National median: 154.00 min (lower is better) Sample size: 397 Reporting period: 07/01/2024 – 06/30/2025 CMS measure id: OP_18a Left before being seen Worse than ~75% of hospitals Hospital score: 2.00 % National median: 1.00 % (lower is better) Sample size: 47,304 Reporting period: 01/01/2024 – 12/31/2024 CMS measure id: OP_22

Psychiatric Unit Quality (IPFQR)

Advocate Illinois Masonic Medical Center (Acute Care) operates a Medicare-certified inpatient psychiatric unit that reports under the federal IPFQR program. The measures below are specific to that unit — not the hospital as a whole. They cover restraint and seclusion use, screening for medication side effects, substance-use and tobacco treatment, transitions of care, follow-up after discharge, and readmissions.

Physical Restraint Use 0.4 hours per 1,000 patient-hours
National median: 0.1 hours Worse than national median

HBIPS-2 — hours of physical restraint use per 1,000 patient-hours. Lower is better; restraints carry physical and psychological risks.

Seclusion Use 0.0 hours per 1,000 patient-hours
National median: 0.0 hours Near national median

HBIPS-3 — hours of seclusion per 1,000 patient-hours. Lower is better; seclusion is used only when no other intervention works.

Metabolic Screening (SMD) 100.0 %
National median: 92.0 % Near national median

SMD — % of patients on antipsychotics screened for metabolic side effects (BMI, blood glucose, cholesterol). Antipsychotics raise metabolic-syndrome risk; screening catches it early.

Substance-Use Treatment Provided 99.0 %
National median: 74.0 % Better than national median

SUB-2 — % of patients with alcohol/drug use referred for treatment during admission.

Substance-Use Treatment at Discharge 97.0 %
National median: 77.0 % Better than national median

SUB-3 — % of patients with substance-use disorder offered or referred to treatment at discharge.

Tobacco-Use Treatment at Discharge 90.0 %
National median: 64.0 % Better than national median

TOB-3 — % of patients using tobacco who received counseling and/or medication at discharge.

Transition Record Completed 75.0 %
National median: 77.0 % Near national median

TR-1 — % of discharges with a completed transition record including medications, follow-up plan, and crisis instructions.

30-Day Readmission Rate 20.1 %
National median: 19.1 % Near national median

READM-30-IPF — risk-standardized 30-day readmission rate. No Different Than the National Rate

Influenza Immunization 97.0 %
National median: 87.0 % Better than national median

IMM-2 — % of patients given a flu vaccine during the inpatient stay.

Source: CMS Inpatient Psychiatric Facility Quality Reporting Program. Reporting period ending 12/31/2024.

Clinical Staff

Advocate Illinois Masonic Medical Center (Acute Care) has 663 CMS-affiliated clinicians on its roster — physicians, advanced practice providers, and other Medicare-enrolled professionals who list this hospital as an affiliated facility.

Top specialties

  • Internal Medicine 91
  • Diagnostic Radiology 66
  • Family Practice 60
  • Nurse Practitioner 38
  • Hematology/Oncology 37
  • Anesthesiology 29
  • Pathology 24
  • Physician Assistant 24

Self-reported primary specialty in the CMS Doctors & Clinicians dataset. Many clinicians serve multiple facilities.

Practice characteristics

Accept Medicare assignment
656 (99%)

Bill Medicare directly at the approved rate — patients only owe co-insurance/deductible.

Offer telehealth
217 (33%)

Indicated by the clinician in their CMS profile as routinely providing virtual visits.

Medicare quality scoring (MIPS)

76 of these clinicians have a published Merit-based Incentive Payment System (MIPS) final score. Of those, 34 (45%) score above the national median of 85.5.

MIPS scoring is heavily compressed at the top of the 0–100 range, so individual scores are not a reliable consumer signal. We surface roster-level coverage and the share above the national median instead.

Source: CMS Doctors and Clinicians (Care Compare) national downloadable file and MIPS Performance Year final scores, as of 2026-05-27. Affiliations from the CMS Facility Affiliations dataset. About 16% of small facilities (critical access, rural emergency, freestanding psych, IRF/LTCH) do not appear in the affiliations file and therefore have no panel.

Find a Doctor

Search the 662 clinicians affiliated with Advocate Illinois Masonic Medical Center (Acute Care). Each name links to that clinician's official Medicare Care Compare profile, where you can see their credentials, secondary specialties, group affiliations, and (when applicable) MIPS quality scores.

Showing 30 of 662 clinicians (alphabetical)

Roster from CMS Doctors and Clinicians (Care Compare), updated 2026-05-27. A clinician may also practice at other facilities; "affiliated" means this hospital is on their CMS profile, not that they exclusively work here.

Pricing & Costs

This hospital participates in price transparency under the federal Hospital Price Transparency Rule. View 771 published procedures — gross charges, cash prices, and per-payer negotiated rates where available.

View full pricing →

Facility Information

Facility type
Acute Care Hospitals
Ownership
Voluntary non-profit - Private
Emergency services
Yes — 24/7

Nearby Hospitals

About this data

Quality and ratings data are sourced from the U.S. Centers for Medicare & Medicaid Services (CMS) Hospital Compare program. Star ratings are CMS's own calculation; CareRanks does not modify or re-weight them. Facility-level details (address, beds, ownership, teaching status) come from CMS provider files and the CMS Provider of Services file.

Pricing data, where shown, is drawn from the hospital's own Machine-Readable File (MRF) published under the federal Hospital Price Transparency Rule. See our methodology for the full update cadence and limitations.

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