Complications & Deaths Measures
20
CMS-tracked
California · Acute Care
UCI Health - los Alamitos
According to PlainHospital's CMS star-rating ranking (CMS Hospital Compare overall stars), UCI Health - los Alamitos ranks #3168 of 3182 rated US hospitals by overall star rating (highest = #1).
- 1★
- CMS overall rating
- 0th pct.
- national percentile
- #3168 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.
3751 Katella Avenue, Los Alamitos, CA 90720 · Orange County · (562) 799-3220
The verdict
According to PlainHospital's CMS star-rating ranking (CMS Hospital Compare overall stars), UCI Health - los Alamitos ranks #3168 of 3182 rated US hospitals by overall star rating (highest = #1). That corpus rank reflects a below-median CMS star rating nationally.
- 0th pct.
- CMS star rating vs 3,182 rated US hospitals
- #3168 of 3182
- rated-hospital corpus placement
- 0
- measures better than national of 21 compared
- Yes
- emergency department on site
Since the last CMS release
CMS lowered this hospital from 3 to 1 stars between its May 2026 and August 2026 releases, a fall of 2.
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 UCI Health - los Alamitos sits among rated US hospitals
1 Among the lowest in the bottom 1% 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
UCI Health - los Alamitos vs. California and the nation
- UCI Health - los Alamitos 1
UCI Health - los Alamitos
1 stars
- California avg
California state average
3.1 stars
- US avg
National average
3.2 stars
What this shows At 1 stars, UCI Health - los Alamitos rates below the California average of 3.1 and below the national average of 3.2.
Type
Acute Care Hospitals
Ownership
Proprietary
Emergency Services
Yes
Birthing Friendly
N/A
Patient Experience
17
HCAHPS domains
Infection Types
6
CDC NHSN
CMS Overall Star Rating 20.0%
1 of 5 stars
Star-band quality profile for UCI Health - los Alamitos
Mortality 7 measures
Safety of care 6 measures
Readmission 8 measures
Better than national Same as national Worse than national
Quality Measures
| Measure | Score | vs. National |
|---|---|---|
| Abdominopelvic accidental puncture or laceration rate | 0.89 | Same as National |
| CMS Medicare PSI 90: Patient safety and adverse events composite | 1.19 | Same as National |
| Death rate among surgical inpatients with serious treatable complications | 180.27 | Same as National |
| Death rate for CABG surgery patients | N/A | Not Available |
| Death rate for COPD patients | 9.9 | Same as National |
| Death rate for heart attack patients | 13.5 | Same as National |
| Death rate for heart failure patients | 10.2 | Same as National |
| Death rate for pneumonia patients | 14.8 | Same as National |
| Death rate for stroke patients | 12.3 | Same as National |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality Rate | 3.7 | Same as National |
| Iatrogenic pneumothorax rate | 0.22 | Same as National |
| In-hospital fall-associated fracture rate | 0.3 | Same as National |
| Perioperative pulmonary embolism or deep vein thrombosis rate | 4.83 | Same as National |
| Postoperative acute kidney injury requiring dialysis rate | 1.64 | Same as National |
| Postoperative hemorrhage or hematoma rate | 2.78 | Same as National |
Patient Experience (HCAHPS)
Experience profile vs. the 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 | 1 |
| 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 | 1 |
| 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) | 0.23 | Same as National |
| Central Line Associated Bloodstream Infection (ICU + select Wards) | 1.797 | Same as National |
| Clostridium Difficile (C.Diff) | 0.521 | Better than National |
| MRSA Bacteremia | 1.458 | Same as National |
| SSI - Abdominal Hysterectomy | N/A | Not Available |
| SSI - Colon Surgery | 1.454 | Same as National |
Staffing & Spending
Unplanned Visits & Readmissions
| Measure | Score | vs. National |
|---|---|---|
| Acute Myocardial Infarction (AMI) 30-Day Readmission Rate | 14.3 | Same as National |
| Heart failure (HF) 30-Day Readmission Rate | 18.5 | Same as National |
| Hospital return days for heart attack patients | 2.3 | Average Days per 100 Discharges |
| Hospital return days for heart failure patients | -10.6 | Average Days per 100 Discharges |
| Hospital return days for pneumonia patients | 17.3 | More Days Than Average per 100 Discharges |
| Hybrid Hospital-Wide All-Cause Readmission Measure (HWR) | 15.4 | Same as National |
| Pneumonia (PN) 30-Day Readmission Rate | 15.9 | Same as National |
| Rate of emergency department (ED) visits for patients receiving outpatient chemotherapy | 5 | Same as National |
| Rate of inpatient admissions for patients receiving outpatient chemotherapy | 9.9 | Same as National |
| Rate of readmission after hip/knee replacement | 7 | Same as National |
| Rate of readmission for CABG | N/A | Not Available |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patients | 19 | Same as National |
| Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies) | 12.4 | Same as National |
| Ratio of unplanned hospital visits after hospital outpatient surgery | 0.9 | Same as National |
Medicare Spending
| Measure | Score |
|---|---|
| Medicare hospital spending per patient (Medicare Spending per Beneficiary) | 1.03 (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 UCI Health - los Alamitos outside California, keyed first to the low CMS star band.
Similar CMS star rating
Nearest overall stars outside CA (1/5 here).
Similar mortality outcomes
Nearest mortality measures rated better than national, outside CA (0 better here).
Nearby Hospitals in California
Other Medicare-certified hospitals in California.
One of 377 Medicare-certified hospitals in California, 6 are shown here.
60th Medical Group (Travis AFB)
Travis AFB, CA
No rating Acute Care - Department of Defense
Adventist Health and Rideout
Marysville, CA
2/5
Acute Care Hospitals
Adventist Health Bakersfield
Bakersfield, CA
2/5
Acute Care Hospitals
Adventist Health Clearlake
Clearlake, CA
2/5
Critical Access Hospitals
Adventist Health Delano
Delano, CA
2/5
Acute Care Hospitals
Adventist Health Hanford
Hanford, CA
3/5
Acute Care Hospitals
Compare UCI Health - los Alamitos vs 60th Medical Group (Travis AFB) →
What to do with UCI Health - los Alamitos
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
- Compare UCI Health - los Alamitos directly against another hospital, measure by measure. Compare 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 UCI Health - los Alamitos compare to other hospitals on CMS star rating?
According to PlainHospital's CMS star-rating ranking, UCI Health - los Alamitos ranks #3168 of 3182 rated US hospitals (low-band tercile among 3,182 rated facilities). Sort basis: star_rating DESC - see /methodology#corpus-placement.
What is the CMS star rating for UCI Health - los Alamitos?
UCI Health - los Alamitos has an overall CMS star rating of 1 out of 5 (low-band), below the 3.2-star national average.
How does UCI Health - los Alamitos perform on quality measures?
0 of 21 compared mortality, safety, and readmission measures rate better than the national average at UCI Health - los Alamitos; 1 rate worse.
What do patients say about UCI Health - los Alamitos?
UCI Health - los Alamitos reports 17 HCAHPS patient-experience domain scores. Star ratings range from 1 to 3 out of 5.
What are the infection rates at UCI Health - los Alamitos?
UCI Health - los Alamitos 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 UCI Health - los Alamitos have emergency services?
Yes, UCI Health - los Alamitos provides emergency services.
What type of hospital is UCI Health - los Alamitos?
UCI Health - los Alamitos is a Acute Care Hospitals facility with Proprietary ownership, located in Los Alamitos, CA.
How much does Medicare spend at UCI Health - los Alamitos?
1 Medicare spending category is on file for UCI Health - los Alamitos, per episode vs. the national median.
Does UCI Health - los Alamitos offer maternal health services?
Yes, UCI Health - los Alamitos reports 4 maternal health measures.