CMS certification 650001
Guam Memorial Hospital Authority
85o Gov Carlos G Camacho Road, Tamuning, GU 96913
Guam Memorial Hospital Authority has a CMS overall rating of 2 out of 5 stars. Of the 12 death, complication, infection and readmission measures CMS could compare, it does better than the nation on none and worse on 2. Emergency patients spend a median of 2 h 36 min in its emergency department before leaving (US median 2 h 42 min).
Every figure on this page is published by CMS; we arrange and explain it, and score nothing ourselves.
What patients said
Answers from patients who stayed here, collected by CMS in the national HCAHPS survey: Oct 2024 – Sep 2025.
Emergency department
How long emergency patients spent here and how some time-critical care went, from CMS's timely and effective care measures, Oct 2024 – Sep 2025. These are medians over a year of visits, not a live wait time.
| Measure | This hospital | GU | US |
|---|---|---|---|
| Median time in the emergency department before leaving Lower is better · 302 visits sampled | 2 h 36 min | — | 2 h 42 min |
| Median time for psychiatric and mental health patients Lower is better · 112 visits sampled | 2 h 34 min | — | 4 h 17 min |
| Severe sepsis and septic shock: all recommended care given Higher is better · 143 patients | 27% | — | 65% |
Deaths
How many patients died within 30 days of admission, adjusted by CMS for how sick they were. Lower is better. Data from Jul 2022 – Jun 2025.
| Measure | CMS comparison | This hospital | National |
|---|---|---|---|
| All patients, hospital-wide 428 cases | Too few cases | 5.4% | 3.9% |
| Heart attack 54 cases | Too few cases | 13.7% | 11.9% |
| Heart failure 98 cases | Too few cases | 11.1% | 11.1% |
| Pneumonia 96 cases | Too few cases | 17% | 15.2% |
| COPD 97 cases | Too few cases | 8% | 8.6% |
2 more measures had too few cases here to report.
Readmissions and return visits
How often patients had to come back to a hospital after going home. Lower is better. Data from Jul 2023 – Jun 2025.
| Measure | CMS comparison | This hospital | National |
|---|---|---|---|
| Readmitted after a heart attack 26 cases | Too few cases | 14.4% | 14.4% |
| Readmitted after heart failure 61 cases | Too few cases | 21.9% | 21.3% |
| Readmitted after pneumonia 68 cases | Too few cases | 17% | 17.3% |
| Readmitted after COPD 54 cases | Too few cases | 19.8% | 20% |
| Days back in hospital after heart failure 110 cases | Too few cases | 67.6 days per 100 | — |
| Days back in hospital after pneumonia 93 cases | Too few cases | 33.2 days per 100 | — |
| Unplanned visits after an outpatient colonoscopy 149 cases | No different | 13.1 per 1,000 likely 9.6 per 1,000 – 17.4 per 1,000 | 13 per 1,000 |
| Unplanned visits after outpatient surgery 48 cases | No different | 1 likely 0.7 – 1.4 | — |
6 more measures had too few cases here to report.
Not reported for this hospital
CMS had too few cases here to publish results for complications, infections caught in the hospital. That is common at small, rural and specialty hospitals, and says nothing either way about quality.
How to read this page
- Everything here is published by CMS on Care Compare. We arrange it and explain it; the star ratings and the better / worse verdicts are CMS's, not ours.
- “No different” is the most common result on most measures at most hospitals. CMS only calls a result better or worse when the difference from the national rate is statistically clear.
- Death, complication and readmission rates are adjusted by CMS for how sick patients were, so hospitals that treat sicker patients can be compared fairly.
- Infection results are ratios: 1.0 means as many infections as CMS predicted for a hospital like this one, below 1.0 is fewer.
- These are hospital-wide results. They do not rate an individual doctor, nurse or department, and they are not medical advice.
CMS Care Compare data retrieved 4 Oct 2026, refreshed weekly. Where this data comes from and how we handle it · Report an error
Common questions about Guam Memorial Hospital Authority
Is Guam Memorial Hospital Authority a good hospital?
Guam Memorial Hospital Authority has a CMS overall rating of 2 out of 5 stars. Of the 12 death, complication, infection and readmission measures CMS could compare, it does better than the nation on none and worse on 2. These are hospital-wide results published by CMS; they do not rate individual doctors or departments.
How long is the wait in the Guam Memorial Hospital Authority emergency room?
Emergency patients spend a median of 2 h 36 min in its emergency department before leaving (US median 2 h 42 min). These are medians over a year of visits, not a live wait time.