Tool · Side-by-side comparison

Compare Hospitals

Put any two of 5,426 Medicare-certified hospitals head to head on CMS star ratings, patient experience, infections, readmissions, spending, and maternal care.

5,426
Hospitals: 3.1★
National avg: 2,866
Rated

Every figure here is drawn from the Centers for Medicare & Medicaid Services (CMS) Hospital Compare release covering 5,426 Medicare-certified hospitals, last refreshed March 2026 — see our methodology.

Mercy Hospital St Louis

Saint Louis, MO

Acute Care Hospitals

Barnes Jewish Hospital

Saint Louis, MO

Acute Care Hospitals

Overview

Metric	Mercy Hospital St Louis	Barnes Jewish Hospital
Overall Star Rating	3/5 ★	4/5 ★
Type	Acute Care Hospitals	Acute Care Hospitals
Ownership	Voluntary non-profit - Private	Voluntary non-profit - Other
Emergency Services	Yes	Yes
Birthing Friendly	Yes	Yes
Avg Patient Experience	3.3	3.8

Quality Performance

Number of quality measures rated better, same, or worse than the national average

Category	Mercy Hospital St Louis			Barnes Jewish Hospital
	Better	Same	Worse	Better	Same	Worse
Mortality	1	6	0	2	5	0
Safety of Care	4	4	0	1	7	0
Readmission	1	7	3	0	7	4

Patient Experience (HCAHPS)

Patient satisfaction survey star ratings (1-5 scale)

Survey Question	Mercy Hospital St Louis	Barnes Jewish Hospital
Cleanliness - linear mean score	N/A	N/A
Cleanliness - star rating	★ 1	★ 2
Communication about medicines - linear mean score	N/A	N/A
Communication about medicines - star rating	★ 3	★ 3
Discharge information - linear mean score	N/A	N/A
Discharge information - star rating	★ 4	★ 5
Doctor communication - linear mean score	N/A	N/A
Doctor communication - star rating	★ 3	★ 4
Nurse communication - linear mean score	N/A	N/A
Nurse communication - star rating	★ 4	★ 4
Overall hospital rating - linear mean score	N/A	N/A
Overall hospital rating - star rating	★ 4	★ 4
Patients who gave their hospital a rating of 6 or lower on a scale from 0 (lowest) to 10 (highest)	N/A	N/A
Patients who gave their hospital a rating of 7 or 8 on a scale from 0 (lowest) to 10 (highest)	N/A	N/A
Patients who gave their hospital a rating of 9 or 10 on a scale from 0 (lowest) to 10 (highest)	N/A	N/A
Patients who reported NO, they would probably not or definitely not recommend the hospital	N/A	N/A
Patients who reported that NO, they did not discuss whether they would need help after discharge	N/A	N/A
Patients who reported that NO, they did not receive written information about possible symptoms to look out for after discharge	N/A	N/A
Patients who reported that NO, they were not given information about what to do during their recovery at home	N/A	N/A
Patients who reported that staff "Always" explained about medicines before giving it to them	N/A	N/A
Patients who reported that staff "Sometimes" or "Never" explained about medicines before giving it to them	N/A	N/A
Patients who reported that staff "Usually" explained about medicines before giving it to them	N/A	N/A
Patients who reported that the area around their room was "Always" quiet at night	N/A	N/A
Patients who reported that the area around their room was "Sometimes" or "Never" quiet at night	N/A	N/A
Patients who reported that the area around their room was "Usually" quiet at night	N/A	N/A
Patients who reported that their doctors "Always" communicated well	N/A	N/A
Patients who reported that their doctors "Always" explained things in a way they could understand	N/A	N/A
Patients who reported that their doctors "Always" listened carefully to them	N/A	N/A
Patients who reported that their doctors "Always" treated them with courtesy and respect	N/A	N/A
Patients who reported that their doctors "Sometimes" or "Never" treated them with courtesy and respect	N/A	N/A
Patients who reported that their doctors "Sometimes" or "Never" communicated well	N/A	N/A
Patients who reported that their doctors "Sometimes" or "Never" explained things in a way they could understand	N/A	N/A
Patients who reported that their doctors "Sometimes" or "Never" listened carefully to them	N/A	N/A
Patients who reported that their doctors "Usually" treated them with courtesy and respect	N/A	N/A
Patients who reported that their doctors "Usually" communicated well	N/A	N/A
Patients who reported that their doctors "Usually" explained things in a way they could understand	N/A	N/A
Patients who reported that their doctors "Usually" listened carefully to them	N/A	N/A
Patients who reported that their nurses "Always" communicated well	N/A	N/A
Patients who reported that their nurses "Always" explained things in a way they could understand	N/A	N/A
Patients who reported that their nurses "Always" listened carefully to them	N/A	N/A
Patients who reported that their nurses "Always" treated them with courtesy and respect	N/A	N/A
Patients who reported that their nurses "Sometimes" or "Never" treated them with courtesy and respect	N/A	N/A
Patients who reported that their nurses "Sometimes" or "Never" communicated well	N/A	N/A
Patients who reported that their nurses "Sometimes" or "Never" explained things in a way they could understand	N/A	N/A
Patients who reported that their nurses "Sometimes" or "Never" listened carefully to them	N/A	N/A
Patients who reported that their nurses "Usually" treated them with courtesy and respect	N/A	N/A
Patients who reported that their nurses "Usually" communicated well	N/A	N/A
Patients who reported that their nurses "Usually" explained things in a way they could understand	N/A	N/A
Patients who reported that their nurses "Usually" listened carefully to them	N/A	N/A
Patients who reported that their room and bathroom were "Always" clean	N/A	N/A
Patients who reported that their room and bathroom were "Sometimes" or "Never" clean	N/A	N/A
Patients who reported that their room and bathroom were "Usually" clean	N/A	N/A
Patients who reported that when receiving new medication the staff "Always" communicated what the medication was for	N/A	N/A
Patients who reported that when receiving new medication the staff "Always" discussed possible side effects	N/A	N/A
Patients who reported that when receiving new medication the staff "Sometimes" or "Never" communicated what the medication was for	N/A	N/A
Patients who reported that when receiving new medication the staff "Sometimes" or "Never" discussed possible side effects	N/A	N/A
Patients who reported that when receiving new medication the staff "Usually" communicated what the medication was for.	N/A	N/A
Patients who reported that when receiving new medication the staff "Usually" discussed possible side effects	N/A	N/A
Patients who reported that YES, they did discuss whether they would need help after discharge	N/A	N/A
Patients who reported that YES, they did receive written information about possible symptoms to look out for after discharge	N/A	N/A
Patients who reported that YES, they were given information about what to do during their recovery at home	N/A	N/A
Patients who reported YES, they would definitely recommend the hospital	N/A	N/A
Patients who reported YES, they would probably recommend the hospital	N/A	N/A
Quietness - linear mean score	N/A	N/A
Quietness - star rating	★ 3	★ 3
Recommend hospital - linear mean score	N/A	N/A
Recommend hospital - star rating	★ 5	★ 5
Summary star rating	★ 3	★ 4

Healthcare-Associated Infections

Infection rates compared to national benchmarks

Infection Type	Mercy Hospital St Louis	Barnes Jewish Hospital
Catheter Associated Urinary Tract Infections (ICU + select Wards)	0.734 Same as National	0.695 Better than National
Catheter Associated Urinary Tract Infections (ICU + select Wards): Lower Confidence Limit	0.449 Same as National	0.535 Better than National
Catheter Associated Urinary Tract Infections (ICU + select Wards): Number of Urinary Catheter Days	15279 Same as National	53811 Better than National
Catheter Associated Urinary Tract Infections (ICU + select Wards): Observed Cases	18 Same as National	60 Better than National
Catheter Associated Urinary Tract Infections (ICU + select Wards): Predicted Cases	24.525 Same as National	86.364 Better than National
Catheter Associated Urinary Tract Infections (ICU + select Wards): Upper Confidence Limit	1.137 Same as National	0.888 Better than National
Central Line Associated Bloodstream Infection (ICU + select Wards)	0.383 Better than National	0.898 Same as National
Central Line Associated Bloodstream Infection (ICU + select Wards): Lower Confidence Limit	0.202 Better than National	0.696 Same as National
Central Line Associated Bloodstream Infection (ICU + select Wards): Observed Cases	11 Better than National	63 Same as National
Central Line Associated Bloodstream Infection (ICU + select Wards): Predicted Cases	28.706 Better than National	70.156 Same as National
Central Line Associated Bloodstream Infection (ICU + select Wards): Upper Confidence Limit	0.666 Better than National	1.141 Same as National
Central Line Associated Bloodstream Infection: Number of Device Days	23210 Better than National	65983 Same as National
Clostridium Difficile (C.Diff)	0.207 Better than National	0.658 Better than National
Clostridium Difficile (C.Diff): Lower Confidence Limit	0.156 Better than National	0.564 Better than National
Clostridium Difficile (C.Diff): Observed Cases	52 Better than National	166 Better than National
Clostridium Difficile (C.Diff): Patient Days	198857 Better than National	368975 Better than National
Clostridium Difficile (C.Diff): Predicted Cases	251.171 Better than National	252.094 Better than National
Clostridium Difficile (C.Diff): Upper Confidence Limit	0.269 Better than National	0.765 Better than National
MRSA Bacteremia	0.525 Better than National	0.905 Same as National
MRSA Bacteremia: Lower Confidence Limit	0.256 Better than National	0.646 Same as National
MRSA Bacteremia: Observed Cases	9 Better than National	37 Same as National
MRSA Bacteremia: Patient Days	240878 Better than National	375751 Same as National
MRSA Bacteremia: Predicted Cases	17.152 Better than National	40.898 Same as National
MRSA Bacteremia: Upper Confidence Limit	0.963 Better than National	1.234 Same as National
SSI - Abdominal Hysterectomy	0.619 Same as National	1.119 Same as National
SSI - Abdominal Hysterectomy: Lower Confidence Limit	0.157 Same as National	0.41 Same as National
SSI - Abdominal Hysterectomy: Number of Procedures	540 Same as National	499 Same as National
SSI - Abdominal Hysterectomy: Observed Cases	3 Same as National	5 Same as National
SSI - Abdominal Hysterectomy: Predicted Cases	4.85 Same as National	4.469 Same as National
SSI - Abdominal Hysterectomy: Upper Confidence Limit	1.683 Same as National	2.48 Same as National
SSI - Colon Surgery	0.709 Same as National	1.19 Same as National
SSI - Colon Surgery: Lower Confidence Limit	0.384 Same as National	0.806 Same as National
SSI - Colon Surgery: Number of Procedures	620 Same as National	819 Same as National
SSI - Colon Surgery: Observed Cases	12 Same as National	28 Same as National
SSI - Colon Surgery: Predicted Cases	16.928 Same as National	23.534 Same as National
SSI - Colon Surgery: Upper Confidence Limit	1.205 Same as National	1.697 Same as National

Medicare Spending

Medicare spending per episode compared between hospitals

Measure	Mercy Hospital St Louis	Barnes Jewish Hospital
Medicare hospital spending per patient (Medicare Spending per Beneficiary)	1.01	1.02

Maternal Health

Maternal care quality measures including C-section rates and outcomes

Measure	Mercy Hospital St Louis	Barnes Jewish Hospital
Cesarean Birth	N/A	N/A
Maternal Morbidity Structural Measure	N/A	N/A
Risk Adjusted Severe Obstetric Complications (All)	N/A	N/A
Risk Adjusted Severe Obstetric Complications (excluding blood-transfusion-only cases)	N/A	N/A

Data from CMS Hospital Compare. This comparison is for informational purposes only and does not constitute medical advice. Learn more

Frequently Asked Questions

What data is used in this hospital comparison?

This comparison tool uses data from the Centers for Medicare & Medicaid Services (CMS) Hospital Compare program. It includes overall star ratings, quality measures (mortality, safety, readmissions), patient experience (HCAHPS) surveys, healthcare-associated infection rates, unplanned visit measures, Medicare spending per episode, and maternal health measures.

How are CMS star ratings calculated?

CMS overall hospital star ratings are calculated on a scale of 1 to 5 stars using data from multiple quality measures across five categories: mortality, safety of care, readmission, patient experience, and timely and effective care. Hospitals must have sufficient data in at least three measure groups to receive a star rating.

What does "Better than National" mean?

When a quality measure is marked "Better than National," it means the hospital's performance on that specific measure is statistically significantly better than the national benchmark. Similarly, "Worse than National" indicates the hospital performs significantly below the benchmark, and "Same as National" means no statistically significant difference.

What are HCAHPS patient experience surveys?

HCAHPS (Hospital Consumer Assessment of Healthcare Providers and Systems) is a standardized patient satisfaction survey administered to a random sample of recently discharged patients. It measures aspects of hospital care such as communication with doctors and nurses, responsiveness of staff, cleanliness, discharge information, and overall rating.

How often is the comparison data updated?

CMS publishes updated Hospital Compare data quarterly. Our database is refreshed with each new CMS release to provide the most current quality metrics available for comparison.

Can I compare more than two hospitals?

Currently this tool supports side-by-side comparison of two hospitals at a time. For broader comparisons, check our Rankings pages for top-rated, safest, and best patient experience hospitals.

Compiled byPlainhospital Editorial, Hospital Quality Editorial Team