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State hospital quality · CMS Hospital Compare

Hospitals in Guam

Guam has 2 Medicare-certified hospitals averaging 2 of 5 CMS stars - below the 3.1-star national average, with 0 earning the full five stars.

2
Hospitals
2★
Avg rating
0
Five-star
2
With ER

The state picture

Across 2 Medicare-certified hospitals, Guam averages 2 of 5 CMS stars - below the 3.1-star national average, and 0 facilities earn the top five-star rating.

2 / 5
state average (below 3.1 national)
0
five-star hospitals
2
with an emergency department
2
Medicare-certified hospitals

CMS star ratings are composite quality scores; 1 of 2 Guam hospitals had enough reporting volume to receive one. Not medical advice.

CMS star-rating mix in Guam

How 1 rated Guam hospitals break down across the 1–5 star scale

hospitals

What this shows 0 Guam hospitals reach five stars; the state's 2-star average sits below the 3.1-star national mark.

Source CMS Hospital Compare As of 2026-05-15

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 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.

2
Hospitals
2
Avg Rating
0
Five-Star
2
With ER

Top-Rated in Guam

Highest CMS star ratings among Medicare-certified hospitals in Guam.

  1. 🥇1 Guam Memorial Hospital Authority Tamuning, GU · Acute Care Hospitals ★★

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 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 from CMS Hospital Compare; patient-experience scores from the HCAHPS survey. Last refreshed: . About PlainHospital and our data sources

Read our methodology - how this data is sourced, computed, and verified.

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.