State hospital quality · CMS Hospital Compare

Best CMS-rated hospitals in Hawaii

According to PlainHospital's state average CMS-star ranking, Hawaii ranks #24 of 54 states and territories by average overall star rating among rated hospitals (highest = #1).

24
Hospitals: #24 of 54
Corpus placement: 3.2★
Avg (11 rated): 0
Five-star: 21
With ER

Hawaii 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)

24 48th of 56 higher than 8 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, Hawaii ranks #24 of 54 states and territories by average overall star rating among rated hospitals (highest = #1). Among 11 rated hospitals, the state averages 3.2 of 5 stars.

3.2 / 5
state average among rated (level with 3.2 national): #24 of 54
state corpus placement by avg star: 0
five-star hospitals: 11 of 24 rated
hospitals with a CMS overall rating

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

Hawaii hospital quality

Hawaii averages 3.2/5 CMS stars across 11 rated hospitals (level with the 3.2 national average), with 0 five-star facilities of 24 Medicare-certified hospitals.

PlainHospital ranks Hawaii hospitals from CMS Hospital Compare overall star ratings (mortality, safety, readmission, patient experience, timely care). Corpus placement: #24 of 54 states and territories by average overall star among rated hospitals. 11 of 24 facilities had enough volume to receive a star; the rest stay unrated. Not medical advice - open a hospital page for the measure-level detail.

5★

0
4★

5
3★

3
2★

3
1★

0

What this shows 0 Hawaii hospitals reach five stars; the state's 3.2-star average sits level with the 3.2-star national mark.

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 3.2 out of 5 , calculated across the 11 of 24 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 Hawaii. The single highest-rated facility in the state registry is Adventist Health Castle in Kailua, currently listed at 4/5 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 2026-08-14, and nothing on this page is medical advice, consult a qualified clinician before making care decisions.

Hospitals

3.2

Avg (11 rated)

Five-Star

With ER

Top-Rated in Hawaii

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

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

Compare Adventist Health Castle vs Kaiser Foundation Hospital →

All Hospitals

Showing 1–24 of 24 hospitals

Hospital	City	Type	Rating	ER
Adventist Health Castle Kailua	Kailua	Acute Care Hospitals	4	Yes
Hilo Benioff Medical Center Hilo	Hilo	Acute Care Hospitals	3	Yes
Honoka'a Hospital and Skilled Nursing Honokaa	Honokaa	Critical Access Hospitals	N/A	Yes
Kahi Mohala Ewa Beach	Ewa Beach	Psychiatric	N/A	No
Kahuku Medical Center Kahuku	Kahuku	Critical Access Hospitals	N/A	Yes
Kaiser Foundation Hospital Honolulu	Honolulu	Acute Care Hospitals	4	Yes
Kapiolani Medical Center for Women & Children Honolulu	Honolulu	Childrens	N/A	Yes
Kau Hospital Pahala	Pahala	Critical Access Hospitals	N/A	Yes
Kauai Veterans Memorial Hospital Waimea	Waimea	Critical Access Hospitals	N/A	Yes
Kohala Hospital Kapaau	Kapaau	Critical Access Hospitals	N/A	Yes
Kona Community Hospital Kealakekua	Kealakekua	Acute Care Hospitals	2	Yes
Kuakini Medical Center Honolulu	Honolulu	Acute Care Hospitals	4	Yes
Kula Hospital Kula	Kula	Critical Access Hospitals	N/A	Yes
Lanai Community Hospital Lanai City	Lanai City	Critical Access Hospitals	N/A	Yes
Maui Memorial Medical Center Wailuku	Wailuku	Acute Care Hospitals	2	No
Molokai General Hospital Kaunakakai	Kaunakakai	Critical Access Hospitals	N/A	Yes
North Hawaii Community Hospital, Inc Kamuela	Kamuela	Acute Care Hospitals	3	Yes
Pali Momi Medical Center Aiea	Aiea	Acute Care Hospitals	4	Yes
Samuel Mahelona Memorial Hospital Kapaa	Kapaa	Critical Access Hospitals	N/A	Yes
Shriners Hospital for Children Honolulu	Honolulu	Childrens	N/A	No
Straub Clinic and Hospital Honolulu	Honolulu	Acute Care Hospitals	4	Yes
The Queens Medical Center Honolulu	Honolulu	Acute Care Hospitals	3	Yes
Tripler Amc (Ft Shafter) Honolulu	Honolulu	Acute Care - Department of Defense	N/A	Yes
Wilcox Memorial Hospital Lihue	Lihue	Acute Care Hospitals	2	Yes

Hospital Quality in Hawaii

Hawaii has 24 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 11 rated of 24 Hawaii hospitals is 3.2. 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 4/5. There are 0 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 3.2 across rated hospitals.

How many hospitals are in Hawaii? ▼

Hawaii has 24 Medicare-certified hospitals, of which 21 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: 2026-08-14. About PlainHospital and our data sources

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

Compiled by PlainHospital, Hospital Quality Editorial Process · August 14, 2026

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.