Acute Care Hospital

Norwalk Hospital

24 Stevens Street, Norwalk, CT 06856

Part of Nuvance Healthsee all 3 affiliated facilities

Major Teaching Hospital Teaching hospitals often receive lower CMS star ratings because they treat more complex cases. This does not necessarily reflect lower quality of care. Safety Net Hospital Serves a high proportion of low-income and uninsured patients. 24/7 Emergency Services Nonprofit
3 out of 5 Stars Why 3 stars? Norwalk Hospital's 3-star rating reflects below-average performance on Timely Care. As a teaching hospital that treats more complex cases, the CMS rating often runs lower than the actual care quality suggests.

CMS Overall Hospital Quality Star Rating · Norwalk Hospital

How was Norwalk Hospital's 3-star rating calculated?

The CMS Overall Hospital Quality Star Rating applies to acute care hospitals like Norwalk Hospital. 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 Norwalk Hospital'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% 17 of 19 1 better 16 same 0 worse
Readmissions 22% 4 of 6 0 better 3 same 1 worse
Timely & Effective Care 12% 15 of 22 1 better 4 same 10 worse
Patient Experience 22% HCAHPS See HCAHPS detail below

Context that affects how to read this rating

As a Major Teaching hospital, Norwalk Hospital treats more medically complex cases than community hospitals. CMS itself acknowledges this often pushes teaching-hospital star ratings down relative to their actual care quality — particularly on mortality and readmissions, where higher-acuity patients carry more risk.

Norwalk Hospital is a Disproportionate Share Hospital (DSH), meaning it serves a high proportion of low-income and uninsured patients. Star ratings don't adjust for patient socioeconomic mix.

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 ↗

Emergency & urgent care

How this emergency department performs on the measures that matter most when you need care fast.

201 min Typical ER visit before heading home Worse than ~75% of hospitals · national median 148 min
1% Walked out before being seen Better than ~75% of hospitals · national median 1%
44% Recommended sepsis care given Worse than ~75% of hospitals · national median 64%

From CMS Timely & Effective Care reporting.

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: Hybrid Hospital-Wide All-Cause Risk Standardized Mortality Rate Better Than the National Rate Hospital score: 3.40 95% interval: 2.80 – 4.00 Sample size: 1,286 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: 9.00 95% interval: 6.00 – 13.30 Sample size: 78 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: 11.40 95% interval: 8.70 – 14.50 Sample size: 114 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: 9.80 95% interval: 7.90 – 12.20 Sample size: 392 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: 14.50 95% interval: 12.40 – 16.90 Sample size: 529 Reporting period: 07/01/2021 – 06/30/2024 CMS measure id: MORT_30_PN Death rate for stroke patients No Different Than the National Rate Hospital score: 13.60 95% interval: 11.00 – 16.90 Sample size: 225 Reporting period: 07/01/2021 – 06/30/2024 CMS measure id: MORT_30_STK Death rate for CABG surgery patients Not Available 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: 0.14 SIR Reporting period: 07/01/2024 – 06/30/2025 CMS measure id: HAI_6_SIR Abdominopelvic accidental puncture or laceration rate No Different Than the National Rate Hospital score: 0.86 95% interval: 0.00 – 1.85 Sample size: 894 Reporting period: 07/01/2022 – 06/30/2024 CMS measure id: PSI_15 Catheter Associated Urinary Tract Infections (ICU + select Wards) No Different than National Benchmark Hospital score: 1.32 SIR Reporting period: 07/01/2024 – 06/30/2025 CMS measure id: HAI_2_SIR Central Line Associated Bloodstream Infection (ICU + select Wards) No Different than National Benchmark Hospital score: 0.56 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: 0.37 95% interval: 0.16 – 0.57 Sample size: 5,662 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: 0.26 95% interval: 0.06 – 0.45 Sample size: 5,681 Reporting period: 07/01/2022 – 06/30/2024 CMS measure id: PSI_08 MRSA Bacteremia No Different than National Benchmark Hospital score: 0.55 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: 2.25 95% interval: 0.66 – 3.84 Sample size: 785 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: 4.56 95% interval: 2.36 – 6.75 Sample size: 818 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: 1.60 95% interval: 0.00 – 3.29 Sample size: 227 Reporting period: 07/01/2022 – 06/30/2024 CMS measure id: PSI_10 Postoperative respiratory failure rate No Different Than the National Rate Hospital score: 6.54 95% interval: 0.00 – 15.04 Sample size: 221 Reporting period: 07/01/2022 – 06/30/2024 CMS measure id: PSI_11 Postoperative sepsis rate No Different Than the National Rate Hospital score: 5.26 95% interval: 1.26 – 9.27 Sample size: 201 Reporting period: 07/01/2022 – 06/30/2024 CMS measure id: PSI_13 Pressure ulcer rate No Different Than the National Rate Hospital score: 0.63 95% interval: 0.00 – 1.37 Sample size: 4,729 Reporting period: 07/01/2022 – 06/30/2024 CMS measure id: PSI_03 CMS Medicare PSI 90: Patient safety and adverse events composite No Different Than the National Value Hospital score: 0.98 95% interval: 0.62 – 1.34 Reporting period: 07/01/2022 – 06/30/2024 CMS measure id: PSI_90 SSI - Colon Surgery No Different than National Benchmark Hospital score: 0.91 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: 180.82 95% interval: 127.41 – 234.23 Sample size: 39 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: 1.67 95% interval: 0.18 – 3.15 Sample size: 227 Reporting period: 07/01/2022 – 06/30/2024 CMS measure id: PSI_14 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 SSI - Abdominal Hysterectomy Not Available Hospital score: — SIR Reporting period: 07/01/2024 – 06/30/2025 CMS measure id: HAI_4_SIR

Readmissions

Same as 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, COPD As expected Hospital score: 1.03 Sample size: 82 Reporting period: 07/01/2021 – 06/30/2024 CMS measure id: READM-30-COPD-HRRP 30-day Readmission, Heart Attack As expected Hospital score: 0.99 Reporting period: 07/01/2021 – 06/30/2024 CMS measure id: READM-30-AMI-HRRP 30-day Readmission, Pneumonia As expected Hospital score: 0.98 Sample size: 532 Reporting period: 07/01/2021 – 06/30/2024 CMS measure id: READM-30-PN-HRRP 30-day Readmission, Heart Failure Worse than expected Hospital score: 1.12 Sample size: 441 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 Norwalk'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 75%
  • Communication with Doctors 77%
  • Hospital Cleanliness 73%
  • Hospital Quietness 48%
  • Staff Responsiveness N/A
  • Discharge Information 88%
  • Overall Hospital Rating (9 or 10) 65%
  • Would Recommend Hospital 65%

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

Timely & Effective Care

Below National Average

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

Underlying measures: Left before being seen Better than ~75% of hospitals Hospital score: 1.00 % National median: 1.00 % (lower is better) Sample size: 45,494 Reporting period: 01/01/2024 – 12/31/2024 CMS measure id: OP_22 Antithrombotic Therapy by End of Hospital Day 2 Near the national median Hospital score: 93.00 % National median: 94.00 % (higher is better) Sample size: 118 Reporting period: 01/01/2024 – 12/31/2024 CMS measure id: STK_05 Endoscopy/polyp surveillance: appropriate follow-up interval for normal colonoscopy in average risk patients Near the national median Hospital score: 99.00 % National median: 97.00 % (higher is better) Sample size: 69 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: 246.00 min National median: 248.00 min (lower is better) Sample size: 22 Reporting period: 07/01/2024 – 06/30/2025 CMS measure id: OP_18c Healthcare workers given influenza vaccination Near the national median Hospital score: 76.00 % National median: 79.00 % (higher is better) Sample size: 2,108 Reporting period: 10/01/2024 – 03/31/2025 CMS measure id: IMM_3 Anticoagulation Therapy for Atrial Fibrillation/Flutter Worse than ~75% of hospitals Hospital score: 60.00 % National median: 75.00 % (higher is better) Sample size: 35 Reporting period: 01/01/2024 – 12/31/2024 CMS measure id: STK_03 Discharged on Antithrombotic Therapy Worse than ~75% of hospitals Hospital score: 94.00 % National median: 98.00 % (higher is better) Sample size: 104 Reporting period: 01/01/2024 – 12/31/2024 CMS measure id: STK_02 Safe Use of Opioids - Concurrent Prescribing Worse than ~75% of hospitals Hospital score: 20.00 % National median: 15.00 % (lower is better) Sample size: 1,321 Reporting period: 01/01/2024 – 12/31/2024 CMS measure id: SAFE_USE_OF_OPIOIDS 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: 201.00 min National median: 148.00 min (lower is better) Sample size: 370 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: 206.00 min National median: 154.00 min (lower is better) Sample size: 392 Reporting period: 07/01/2024 – 06/30/2025 CMS measure id: OP_18a Appropriate care for severe sepsis and septic shock Worse than ~75% of hospitals Hospital score: 44.00 % National median: 64.00 % (higher is better) Sample size: 102 Reporting period: 07/01/2024 – 06/30/2025 CMS measure id: SEP_1 Septic Shock 3-Hour Bundle Worse than ~75% of hospitals Hospital score: 59.00 % National median: 72.00 % (higher is better) Sample size: 34 Reporting period: 07/01/2024 – 06/30/2025 CMS measure id: SEP_SH_3HR Septic Shock 6-Hour Bundle Worse than ~75% of hospitals Hospital score: 75.00 % National median: 89.00 % (higher is better) Sample size: 16 Reporting period: 07/01/2024 – 06/30/2025 CMS measure id: SEP_SH_6HR Severe Sepsis 3-Hour Bundle Worse than ~75% of hospitals Hospital score: 71.00 % National median: 81.00 % (higher is better) Sample size: 102 Reporting period: 07/01/2024 – 06/30/2025 CMS measure id: SEV_SEP_3HR Severe Sepsis 6-Hour Bundle Worse than ~75% of hospitals Hospital score: 89.00 % National median: 94.00 % (higher is better) Sample size: 54 Reporting period: 07/01/2024 – 06/30/2025 CMS measure id: SEV_SEP_6HR

Psychiatric Unit Quality (IPFQR)

Norwalk Hospital operates a Medicare-certified inpatient psychiatric unit that reports under the federal IPFQR program. The measures 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.

Show the psychiatric unit's 9 reported measures expand ↓
Physical Restraint Use 0.8 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) 13.0 %
National median: 92.0 % Worse than 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 33.0 %
National median: 74.0 % Worse than national median

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

Substance-Use Treatment at Discharge 83.0 %
National median: 77.0 % Near national median

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

Tobacco-Use Treatment at Discharge 24.0 %
National median: 64.0 % Worse than national median

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

Transition Record Completed 43.0 %
National median: 77.0 % Worse than national median

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

30-Day Readmission Rate 18.2 %
National median: 19.1 % Near national median

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

Influenza Immunization 84.0 %
National median: 87.0 % Near 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

Norwalk Hospital has 565 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 97
  • Physician Assistant 51
  • Nurse Practitioner 38
  • Diagnostic Radiology 37
  • Anesthesiology 35
  • Certified Registered Nurse Anesthetist (Crna) 27
  • Cardiovascular Disease (Cardiology) 22
  • Obstetrics/Gynecology 20

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

Practice characteristics

Accept Medicare assignment
557 (99%)

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

Offer telehealth
181 (32%)

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

Medicare quality scoring (MIPS)

370 of these clinicians have a published Merit-based Incentive Payment System (MIPS) final score. Of those, 261 (71%) 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 2026-07-18. 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 565 clinicians affiliated with Norwalk Hospital. 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 565 clinicians (alphabetical)

Roster from CMS Doctors and Clinicians (Care Compare), updated 2026-07-18. A clinician may also practice at other facilities; "affiliated" means this hospital is on their CMS profile, not that they exclusively work here. Procedure volumes are Medicare fee-for-service counts from the CMS clinician utilization file (all practice locations, not just this hospital). Industry payment totals are from CMS Open Payments, program year 2024, and include meals, travel, consulting, and speaking fees; payments are legal and common — we show them for transparency, not as a quality judgment.

Pricing & Costs

Facility Information

Licensed beds
50
Facility type
Acute Care Hospitals
Ownership
Voluntary non-profit - Private
NPI
1538325303
Emergency services
Yes — 24/7

Ownership & Finances

Ownership
Nonprofit
Charity care spend (FY2023)
$8.1M
List prices vs. actual cost
≈ 3.7× actual cost

From the hospital's FY2023 Medicare cost report (HCRIS).

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How Norwalk Hospital compares nearby

Compared with the 8 other acute-care hospitals within 25 miles — 9 facilities in all, CMS data only.

Among the 9 acute-care hospitals within 25 miles, Norwalk Hospital's overall star rating is 3★; the median among the 8 peers reporting it is 3.5★.

Measure This facility Nearby median Best nearby
Overall star rating reported by 8 of 8 nearby peers 3★ 3.5★ 4★
Patient experience (HCAHPS) star reported by 8 of 8 nearby peers 3★ 2.5★ 4★
Mortality reported by 8 of 8 nearby peers Same as National Average Same as National Average Same as National Average
Safety of Care reported by 8 of 8 nearby peers Same as National Average Same as National Average Better than National Average
Readmissions reported by 6 of 8 nearby peers Same as National Average Same as National Average Same as National Average

The comparison group

Cohort: within 25 miles · CMS data period 2026-06 · method cohort-v1 · comparisons are never affected by claiming or payment. How nearby comparisons work

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Skilled nursing facilities nearby

For planning care after discharge — CMS five-star ratings shown; always confirm availability and coverage with the facility and your insurer.

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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