California · Acute Care

St Mary Medical Center

According to PlainHospital's CMS star-rating ranking (CMS Hospital Compare overall stars), St Mary Medical Center ranks #304 of 3182 rated US hospitals by overall star rating (highest = #1).

5★
CMS overall rating
Top 12%
national star rank
#304 of 3182
Corpus placement
20
Quality measures
6
Infection types

Data currency: Hospital quality, safety, and patient-experience measures from the CMS Care Compare program (published quarterly), last refreshed May 2026. See our methodology for source dates. Spot a figure that looks wrong? Report a correction.

1050 Linden Ave, Long Beach, CA 90813 · Los Angeles County · (562) 491-9000

The verdict

According to PlainHospital's CMS star-rating ranking (CMS Hospital Compare overall stars), St Mary Medical Center ranks #304 of 3182 rated US hospitals by overall star rating (highest = #1). That corpus rank reflects a top-quartile CMS star rating nationally, with 4 quality measures beating the national benchmark (1 worse).

Top 12%
CMS star rating vs 3,182 rated US hospitals
#304 of 3182
rated-hospital corpus placement
4
measures better than national of 19 compared
Yes
emergency department on site

Since the last CMS release

CMS raised this hospital from 4 to 5 stars between its May 2026 and August 2026 releases, a gain of 1.

CMS replaces its file at each release rather than publishing a changelog, so this comparison exists only because the earlier release is kept on file. See what changed nationally.

Where St Mary Medical Center sits among rated US hospitals

5 Top 12% higher than 88% of 3,182 rated hospitals

CMS star rating (1–5 stars), bucketed by value

Each bar is a band; taller bars hold more rated hospitals. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source CMS Hospital Compare, overall hospital rating · 2026-08-14

St Mary Medical Center vs. California and the nation

stars

What this shows At 5 stars, St Mary Medical Center rates above the California average of 3.1 and above the national average of 3.2.

Source CMS Hospital Compare As of 2026-08-14
Type
Acute Care Hospitals
Ownership
Voluntary non-profit - Church
Emergency Services
Yes
Birthing Friendly
Yes

Complications & Deaths Measures

20

CMS-tracked

Patient Experience

17

HCAHPS domains

Infection Types

6

CDC NHSN

CMS Overall Star Rating 100.0%

5 of 5 stars

Better-than-national profile for St Mary Medical Center

Mortality 7 measures
Safety of care 6 measures
Readmission 6 measures
Better than national Same as national Worse than national

Quality Measures

Measure Score vs. National
Abdominopelvic accidental puncture or laceration rate 0.96 Same as National
CMS Medicare PSI 90: Patient safety and adverse events composite 1 Same as National
Death rate among surgical inpatients with serious treatable complications 157.28 Same as National
Death rate for CABG surgery patients N/A Number of Cases Too Small
Death rate for COPD patients 7.1 Same as National
Death rate for heart attack patients 10.7 Same as National
Death rate for heart failure patients 8.1 Same as National
Death rate for pneumonia patients 13.4 Same as National
Death rate for stroke patients 10.9 Same as National
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality Rate 3.8 Same as National
Iatrogenic pneumothorax rate 0.18 Same as National
In-hospital fall-associated fracture rate 0.25 Same as National
Perioperative pulmonary embolism or deep vein thrombosis rate 4.24 Same as National
Postoperative acute kidney injury requiring dialysis rate 1.65 Same as National
Postoperative hemorrhage or hematoma rate 2.13 Same as National

Patient Experience (HCAHPS)

Experience profile vs. the national average

Radar chart 6-axis radar comparing 1 series across Nurse comms, Doctor comms, Medicine comms, Discharge info, Cleanliness, Quietness. Nurse commsDoctor commsMedicine commsDischarge infoCleanlinessQuietness National average

Source: CMS Hospital Compare, HCAHPS patient survey star ratings.

Survey Question Star Rating
Cleanliness - linear mean score
N/A
Cleanliness - star rating
3
Communication about medicines - linear mean score
N/A
Communication about medicines - star rating
2
Discharge information - linear mean score
N/A
Discharge information - star rating
2
Doctor communication - linear mean score
N/A
Doctor communication - star rating
2
Nurse communication - linear mean score
N/A
Nurse communication - star rating
2
Overall hospital rating - linear mean score
N/A
Overall hospital rating - star rating
2
Quietness - linear mean score
N/A
Quietness - star rating
2
Recommend hospital - linear mean score
N/A
Recommend hospital - star rating
2
Summary star rating
2

Safety & Infections

Measure Score vs. National
Catheter Associated Urinary Tract Infections (ICU + select Wards) 0.411 Same as National
Central Line Associated Bloodstream Infection (ICU + select Wards) 0.294 Same as National
Clostridium Difficile (C.Diff) 0.245 Better than National
MRSA Bacteremia 0.236 Same as National
SSI - Abdominal Hysterectomy N/A Not Available
SSI - Colon Surgery 0 Same as National

Staffing & Spending

Unplanned Visits & Readmissions

Measure Score vs. National
Acute Myocardial Infarction (AMI) 30-Day Readmission Rate 13 Same as National
Heart failure (HF) 30-Day Readmission Rate 18.6 Same as National
Hospital return days for heart attack patients -23.6 Fewer Days Than Average per 100 Discharges
Hospital return days for heart failure patients -48.4 Fewer Days Than Average per 100 Discharges
Hospital return days for pneumonia patients 34 More Days Than Average per 100 Discharges
Hybrid Hospital-Wide All-Cause Readmission Measure (HWR) 14 Same as National
Pneumonia (PN) 30-Day Readmission Rate 16.3 Same as National
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapy N/A Not Available
Rate of inpatient admissions for patients receiving outpatient chemotherapy N/A Not Available
Rate of readmission after hip/knee replacement N/A Number of Cases Too Small
Rate of readmission for CABG N/A Number of Cases Too Small
Rate of readmission for chronic obstructive pulmonary disease (COPD) patients 18.3 Same as National
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies) N/A Number of Cases Too Small
Ratio of unplanned hospital visits after hospital outpatient surgery 1 Same as National

Medicare Spending

Measure Score
Medicare hospital spending per patient (Medicare Spending per Beneficiary) 1.1 (Well above average)

Maternal Health

CMS maternal-care measures reported for this facility. The Hospital Compare maternal extract lists measure names and reporting windows; it does not publish numeric scores or sample sizes in the corpus we ingest, so those columns are omitted rather than filled with N/A.

Measure
Cesarean Birth
Maternal Morbidity Structural Measure
Risk Adjusted Severe Obstetric Complications (All)
Risk Adjusted Severe Obstetric Complications (excluding blood-transfusion-only cases)

Nationwide hospitals with similar CMS profiles

Peer sets for St Mary Medical Center outside California, keyed to the strong better-than-national share.

Nearby Hospitals in California

Other Medicare-certified hospitals in California.

One of 377 Medicare-certified hospitals in California, 6 are shown here.

Compare St Mary Medical Center vs 60th Medical Group (Travis AFB) →

What to do with St Mary Medical Center

Use this page's CMS-sourced figures as a starting filter, not a final verdict.

  • See how every California hospital compares on star rating and the same quality measures. California hospitals
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CMS Hospital Compare figures are informational only, not medical advice; always consult your care team.

Frequently Asked Questions

How does St Mary Medical Center compare to other hospitals on CMS star rating?

According to PlainHospital's CMS star-rating ranking, St Mary Medical Center ranks #304 of 3182 rated US hospitals by overall star rating (highest = #1). That ordinal matches our top-rated hospital listing (star_rating DESC). See /methodology#corpus-placement.

What is the CMS star rating for St Mary Medical Center?

St Mary Medical Center has an overall CMS star rating of 5 out of 5 (high-band), above the 3.2-star national average.

How does St Mary Medical Center perform on quality measures?

4 of 19 compared mortality, safety, and readmission measures rate better than the national average at St Mary Medical Center (strong better-share tercile); 1 rate worse (typical).

What do patients say about St Mary Medical Center?

St Mary Medical Center reports 17 HCAHPS patient-experience domain scores. Star ratings range from 2 to 3 out of 5.

What are the infection rates at St Mary Medical Center?

St Mary Medical Center tracks 6 healthcare-associated infection types (CDC NHSN). 1 are better than the national benchmark, 0 are worse, and 4 are at the national average.

Does St Mary Medical Center have emergency services?

Yes, St Mary Medical Center provides emergency services.

What type of hospital is St Mary Medical Center?

St Mary Medical Center is a Acute Care Hospitals facility with Voluntary non-profit - Church ownership, located in Long Beach, CA. This facility has received the CMS Birthing-Friendly designation.

How much does Medicare spend at St Mary Medical Center?

1 Medicare spending category is on file for St Mary Medical Center, per episode vs. the national median.

Does St Mary Medical Center offer maternal health services?

Yes, St Mary Medical Center reports 4 maternal health measures. This facility has been designated as Birthing-Friendly by CMS.

Data sources

St Mary Medical Center's figures come from CMS Hospital Compare (measure windows 2021-04-01 to 2025-06-30). See our methodology for details.

Disclaimer: CMS Hospital Compare figures are informational only, not medical advice; always consult your care team.

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