PlainHospital

State hospital quality · CMS Hospital Compare

Hospitals in Hawaii

Hawaii has 24 Medicare-certified hospitals averaging 3.1 of 5 CMS stars - level with the 3.1-star national average, with 1 earning the full five stars.

24
Hospitals
3.1★
Avg rating
1
Five-star
21
With ER

The state picture

Across 24 Medicare-certified hospitals, Hawaii averages 3.1 of 5 CMS stars - level with the 3.1-star national average, and 1 facility earns the top five-star rating.

3.1 / 5
state average (level with 3.1 national)
1
five-star hospitals
21
with an emergency department
24
Medicare-certified hospitals

CMS star ratings are composite quality scores; 11 of 24 Hawaii hospitals had enough reporting volume to receive one. Not medical advice.

CMS star-rating mix in Hawaii

How 11 rated Hawaii hospitals break down across the 1–5 star scale

hospitals

What this shows 1 Hawaii hospital reaches five stars; the state's 3.1-star average sits level with the 3.1-star national mark.

Source CMS Hospital Compare As of 2026-05-15

What the Data Shows About Hospitals in Hawaii

Hawaii has 24 Medicare-certified hospitals tracked by the Centers for Medicare & Medicaid Services (CMS) Hospital Compare program. Of these, 21 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 3.1 out of 5, calculated across hospitals with enough reporting volume to generate a composite rating.

At the top of the quality distribution, 1 hospital has earned the highest 5-star CMS overall rating in Hawaii. The single highest-rated facility in the state registry is Adventist Health Castle in Kailua, currently listed at 5/5 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 24 of 24 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.

24
Hospitals
3.1
Avg Rating
1
Five-Star
21
With ER

Top-Rated in Hawaii

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

  1. 🥇1 Adventist Health Castle Kailua, HI · Acute Care Hospitals ★★★★★
  2. 🥈2 Kuakini Medical Center Honolulu, HI · Acute Care Hospitals ★★★★
  3. 🥉3 Pali Momi Medical Center Aiea, HI · Acute Care Hospitals ★★★★
  4. 4 Straub Clinic and Hospital Honolulu, HI · Acute Care Hospitals ★★★★
  5. 5 Kaiser Foundation Hospital Honolulu, HI · Acute Care Hospitals ★★★
  6. 6 Maui Memorial Medical Center Wailuku, HI · Acute Care Hospitals ★★★

Compare Adventist Health Castle vs Kuakini Medical Center →

All Hospitals

Showing 1–24 of 24 hospitals

Hospital Rating
Adventist Health Castle

Kailua

 5
Hale Ho'ola Hamakua

Honokaa

 N/A
Hilo Benioff Medical Center

Hilo

 2
Kahi Mohala

Ewa Beach

 N/A
Kahuku Medical Center

Kahuku

 N/A
Kaiser Foundation Hospital

Honolulu

 3
Kapiolani Medical Center for Women & Children

Honolulu

 N/A
Kau Hospital

Pahala

 N/A
Kauai Veterans Memorial Hospital

Waimea

 N/A
Kohala Hospital

Kapaau

 N/A
Kona Community Hospital

Kealakekua

 2
Kuakini Medical Center

Honolulu

 4
Kula Hospital

Kula

 N/A
Lanai Community Hospital

Lanai City

 N/A
Maui Memorial Medical Center

Wailuku

 3
Molokai General Hospital

Kaunakakai

 N/A
North Hawaii Community Hospital, Inc

Kamuela

 2
Pali Momi Medical Center

Aiea

 4
Samuel Mahelona Memorial Hospital

Kapaa

 N/A
Shriners Hospital for Children

Honolulu

 N/A
Straub Clinic and Hospital

Honolulu

 4
The Queens Medical Center

Honolulu

 3
Tripler Amc (Ft Shafter)

Honolulu

 N/A
Wilcox Memorial Hospital

Lihue

 2

Hospital Quality in Hawaii

Hawaii has 24 Medicare-certified hospitals tracked by the Centers for Medicare & Medicaid Services (CMS). Of these, 1 have earned the highest 5-star overall quality rating, reflecting strong performance across mortality, safety of care, readmission rates, patient experience, and timely and effective care measures.

The average CMS star rating across Hawaii hospitals is 3.1. 21 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 Hawaii? ▼
The highest-rated hospital in Hawaii is Adventist Health Castle in Kailua with a CMS star rating of 5/5. There are 1 five-star hospitals in the state out of 24 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 Hawaii, the average star rating is 3.1 across rated hospitals.
How many hospitals are in Hawaii? ▼
Hawaii has 24 Medicare-certified hospitals, of which 21 have emergency departments. 1 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.