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MAYO CLINIC HOSPITAL — Quality & Patient Safety

PHOENIX, AZ · Acute Care Hospitals · Emergency services available

Source: CMS Hospital Compare, HCAHPS Survey

By BillRazor Research · Last updated June 1, 2026 · View pricing data

CMS Overall Hospital Quality

5

Out of 5 stars · CMS Hospital Compare rating

N/A

Patients recommend

1,360

Survey responses

Patient Satisfaction

5.0/5

Overall HCAHPS score

Avg Readmission Ratio

1.00

Above national average

Quality Measures

54

CMS-tracked metrics

Quality Score

100

Composite index

Patient Satisfaction — HCAHPS Survey Scores

Score out of 5.0 based on patient survey responses. Source: CMS HCAHPS.

Excess Readmission Ratios by Condition

Ratio vs national average (1.0 = average). Below 1.0 is better, above 1.0 indicates higher-than-expected readmissions.

Below average (better) Above average

Healthcare-Associated Infections (HAI)

Performance vs national benchmarks on hospital-acquired infection measures.

12

Better than average

Lower infection rates

24

Same as average

Near national rate

0

Worse than average

Higher infection rates

MeasureScorevs National
Central Line Associated Bloodstream Infection (ICU + select Wards): Lower Confidence Limit0.40Better than the National Benchmark
Central Line Associated Bloodstream Infection (ICU + select Wards): Upper Confidence Limit0.94Better than the National Benchmark
Central Line Associated Bloodstream Infection: Number of Device Days34425.00Better than the National Benchmark
Central Line Associated Bloodstream Infection (ICU + select Wards): Predicted Cases35.01Better than the National Benchmark
Central Line Associated Bloodstream Infection (ICU + select Wards): Observed Cases22.00Better than the National Benchmark
Central Line Associated Bloodstream Infection (ICU + select Wards)0.63Better than the National Benchmark
Catheter Associated Urinary Tract Infections (ICU + select Wards): Lower Confidence Limit0.40No Different than National Benchmark
Catheter Associated Urinary Tract Infections (ICU + select Wards): Upper Confidence Limit1.03No Different than National Benchmark
Catheter Associated Urinary Tract Infections (ICU + select Wards): Number of Urinary Catheter Days21291.00No Different than National Benchmark
Catheter Associated Urinary Tract Infections (ICU + select Wards): Predicted Cases25.81No Different than National Benchmark
Catheter Associated Urinary Tract Infections (ICU + select Wards): Observed Cases17.00No Different than National Benchmark
Catheter Associated Urinary Tract Infections (ICU + select Wards)0.66No Different than National Benchmark
SSI - Colon Surgery: Lower Confidence Limit0.85No Different than National Benchmark
SSI - Colon Surgery: Upper Confidence Limit2.23No Different than National Benchmark
SSI - Colon Surgery: Number of Procedures458.00No Different than National Benchmark
SSI - Colon Surgery: Predicted Cases11.98No Different than National Benchmark
SSI - Colon Surgery: Observed Cases17.00No Different than National Benchmark
SSI - Colon Surgery1.42No Different than National Benchmark
SSI - Abdominal Hysterectomy: Lower Confidence Limit0.29No Different than National Benchmark
SSI - Abdominal Hysterectomy: Upper Confidence Limit5.81No Different than National Benchmark
SSI - Abdominal Hysterectomy: Number of Procedures145.00No Different than National Benchmark
SSI - Abdominal Hysterectomy: Predicted Cases1.14No Different than National Benchmark
SSI - Abdominal Hysterectomy: Observed Cases2.00No Different than National Benchmark
SSI - Abdominal Hysterectomy1.76No Different than National Benchmark
MRSA Bacteremia: Lower Confidence Limit0.17No Different than National Benchmark
MRSA Bacteremia: Upper Confidence Limit1.28No Different than National Benchmark
MRSA Bacteremia: Patient Days113539.00No Different than National Benchmark
MRSA Bacteremia: Predicted Cases7.56No Different than National Benchmark
MRSA Bacteremia: Observed Cases4.00No Different than National Benchmark
MRSA Bacteremia0.53No Different than National Benchmark
Clostridium Difficile (C.Diff): Lower Confidence Limit0.35Better than the National Benchmark
Clostridium Difficile (C.Diff): Upper Confidence Limit0.63Better than the National Benchmark
Clostridium Difficile (C.Diff): Patient Days113539.00Better than the National Benchmark
Clostridium Difficile (C.Diff): Predicted Cases92.33Better than the National Benchmark
Clostridium Difficile (C.Diff): Observed Cases44.00Better than the National Benchmark
Clostridium Difficile (C.Diff)0.48Better than the National Benchmark

What quality scores mean for patients at MAYO CLINIC HOSPITAL

MAYO CLINIC HOSPITAL holds a CMS overall rating of 5 out of 5 stars, based on publicly reported quality measures. This places it at #2 out of 53 hospitals in AZ. Quality ratings aggregate dozens of individual measures — from nurse communication and cleanliness to surgical complication rates and timely care — into a single composite. While no single number captures the full patient experience, the star rating provides a useful starting point for understanding whether a hospital consistently meets or falls short of national performance standards.

Readmission data offers a particularly important signal. MAYO CLINIC HOSPITAL's average excess readmission ratio is 1.00x the national average, meaning patients here return to the hospital at a higher-than-expected rate after discharge. This hospital reports readmission data across 6 conditions, and performance varies by diagnosis. High readmission rates can indicate issues with discharge planning, follow-up care coordination, or the initial quality of treatment — all factors that may also correlate with the complexity and accuracy of the resulting hospital bill.

Research consistently shows a correlation between hospital operational quality and billing accuracy. Hospitals that perform well on patient safety, infection control, and care coordination tend to have more robust administrative processes, including medical coding and billing. Conversely, facilities with lower quality scores — particularly those with higher-than-average infection rates (0 measures worse than average at MAYO CLINIC HOSPITAL) or elevated readmission ratios — often exhibit higher rates of billing discrepancies. If you have received a bill from a hospital with mixed quality indicators, a line-by-line review against regional benchmarks can identify charges that may not align with the care actually delivered.

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Data from CMS Hospital Compare, HCAHPS Patient Survey, Hospital-Acquired Infection (HAI) reports, and Hospital Readmissions Reduction Program (HRRP). All data is publicly available.

Star ratings and quality measures are published by the Centers for Medicare & Medicaid Services (CMS). This page is for informational purposes only and does not constitute medical advice.

Frequently Asked Questions About MAYO CLINIC HOSPITAL Quality

What is MAYO CLINIC HOSPITAL's CMS star rating?

MAYO CLINIC HOSPITAL has an overall CMS star rating of 5 out of 5, based on the Hospital Compare quality rating system. This rating incorporates patient experience, safety, readmission rates, mortality outcomes, and timely & effective care. Star ratings are updated annually by the Centers for Medicare & Medicaid Services.

How do patients rate MAYO CLINIC HOSPITAL?

Patient satisfaction data for MAYO CLINIC HOSPITAL is based on the HCAHPS patient survey, which measures experience across dimensions including nurse and doctor communication, staff responsiveness, and cleanliness. Detailed scores are available on this page.

Does MAYO CLINIC HOSPITAL have higher-than-average readmission rates?

MAYO CLINIC HOSPITAL's average excess readmission ratio is 1.00. A ratio above 1.0 means readmission rates are higher than the national average for the measured conditions. This hospital's readmission rate is above the national average. Source: CMS Hospital Readmissions Reduction Program.

How does MAYO CLINIC HOSPITAL compare to other AZ hospitals?

MAYO CLINIC HOSPITAL's quality metrics, including star rating, patient satisfaction, readmission rates, and infection data, can be compared against other AZ hospitals on this page. The state peers section shows the top-rated hospitals in AZ for context.

Data sourced from CMS Hospital Compare and HCAHPS Patient Survey. All information is for educational purposes only.