State hospital quality · CMS Hospital Compare
Best CMS-rated hospitals in Guam
According to PlainHospital's state average CMS-star ranking, Guam ranks #52 of 54 states and territories by average overall star rating among rated hospitals (highest = #1).
- 2
- Hospitals
- #52 of 54
- Corpus placement
- 2★
- Avg (1 rated)
- 0
- Five-star
- 2
- With ER
Guam vs all states by Medicare hospital count
Where this state's Medicare-certified hospital inventory sits among every tracked state and territory (inventory signal, not a quality ranking)
2 54th of 56 higher than 2 of 56 states
States and territories, banded by Medicare-certified hospital count
Each bar is a band; taller bars hold more states. 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 · 2026-08-14
The state picture
According to PlainHospital's state average CMS-star ranking, Guam ranks #52 of 54 states and territories by average overall star rating among rated hospitals (highest = #1). Among 1 rated hospitals, the state averages 2 of 5 stars.
- 2 / 5
- state average among rated (below 3.2 national)
- #52 of 54
- state corpus placement by avg star
- 0
- five-star hospitals
- 1 of 2 rated
- hospitals with a CMS overall rating
CMS star ratings are composite quality scores; 1 of 2 Guam hospitals had enough reporting volume to receive one. Not medical advice.
Guam hospital quality
Guam averages 2/5 CMS stars across 1 rated hospitals (below the 3.2 national average), with 0 five-star facilities of 2 Medicare-certified hospitals.
PlainHospital ranks Guam hospitals from CMS Hospital Compare overall star ratings (mortality, safety, readmission, patient experience, timely care). Corpus placement: #52 of 54 states and territories by average overall star among rated hospitals. 1 of 2 facilities had enough volume to receive a star; the rest stay unrated. Not medical advice - open a hospital page for the measure-level detail.
CMS star-rating mix in Guam
How 1 rated Guam hospitals break down across the 1–5 star scale
- 5★ 0
5-star hospitals
0 hospitals
- 4★ 0
4-star hospitals
0 hospitals
- 3★ 0
3-star hospitals
0 hospitals
- 2★
2-star hospitals
1 hospitals
- 1★ 0
1-star hospitals
0 hospitals
What this shows 0 Guam hospitals reach five stars; the state's 2-star average sits below the 3.2-star national mark.
What the Data Shows About Hospitals in Guam
Guam has 2 Medicare-certified hospitals tracked by the Centers for Medicare & Medicaid Services (CMS) Hospital Compare program. Of these, 2 facilities operate an emergency department, an important signal for communities that rely on nearby acute-care access. The statewide average CMS overall star rating is 2 out of 5 , calculated across the 1 of 2 hospitals with enough reporting volume to generate a composite rating.
At the top of the quality distribution, 0 hospitals have earned the highest 5-star CMS overall rating in Guam. The single highest-rated facility in the state registry is Guam Memorial Hospital Authority in Tamuning, currently listed at 2/5 stars. Star ratings are composite scores built from mortality, safety of care, readmission, patient experience (HCAHPS), and timely & effective care domains, so a single number conceals meaningful per-domain variation that matters for specific procedures.
Showing 2 of 2 hospitals on this page (page 1 of 1). Hospital quality varies materially within a state, urban academic centers, rural critical-access hospitals, and specialty facilities report against different baselines, so comparing individual facility profiles before choosing planned care is more useful than relying on the statewide average alone. All figures reflect the CMS Hospital Compare release from , and nothing on this page is medical advice, consult a qualified clinician before making care decisions.
Top-Rated in Guam
Highest CMS star ratings among Medicare-certified hospitals in Guam.
All Hospitals
Showing 1–2 of 2 hospitals
| Hospital | Rating |
|---|---|
| Guam Memorial Hospital Authority Tamuning | 2 |
| Guam Regional Medical City Dededo | N/A |
Hospital Quality in Guam
Guam has 2 Medicare-certified hospitals tracked by the Centers for Medicare & Medicaid Services (CMS). Star rating data helps patients compare hospitals on mortality, safety, readmission rates, patient experience, and timely care.
The average CMS star rating across the 1 rated of 2 Guam hospitals is 2. 2 facilities have emergency departments, an important factor for communities that depend on nearby acute care. Hospital quality can vary significantly within a state, so comparing individual facility ratings before choosing care is recommended.
Frequently Asked Questions
What is the best hospital in Guam?
The highest-rated hospital in Guam is Guam Memorial Hospital Authority in Tamuning with a CMS star rating of 2/5. There are 0 five-star hospitals in the state out of 2 Medicare-certified facilities.
How are hospitals rated?
CMS rates hospitals on a 1-to-5 star scale based on quality measures including mortality, safety, patient experience, readmission rates, and timely care. In Guam, the average star rating is 2 across rated hospitals.
How many hospitals are in Guam?
Guam has 2 Medicare-certified hospitals, of which 2 have emergency departments. 0 hospitals have earned the highest 5-star CMS rating.
Data sources
Every figure on PlainHospital is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.