Best Hospitals in Hawaii, Graded A–F
All 11 graded Medicare-certified hospitals in Hawaii, scored from CMS Care Compare — overall rating, mortality, safety of care and readmissions — against Hawaii hospitals of the same type. Grades are computed, never edited, and every input is shown on the hospital page.
CMS data as of Sep 2026 · graded Sep 11, 2026Grade distribution — Hawaii
A1
B2
C6
D2
F0
Highest graded
Honolulu · CMS overall rating 4 of 5 — top quarter...See grade
11 hospitalsgraded in Hawaii · 1 earned an A
Highest in Hawaii 1
Kuakini Medical Center - Honolulu, HI · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026
- CMS overall rating 4 of 5 — top quarter among Hawaii acute care hospitals
- Mortality: 1 measure better than the national rate, 0 worse, of 5
- Safety: 1 measure better than the national rate, 0 worse, of 7
AScore 74 · ExcellentSee Full Grade
(808) 536-2236
Honolulu, HONOLULU County
Emergency dept.
2
Adventist Health Castle - Kailua, HI · Acute care hospital · voluntary non-profit - church CMS Care Compare · data as of Sep 2026
- CMS overall rating 4 of 5 — top quarter among Hawaii acute care hospitals
- Mortality: 0 measures better than the national rate, 0 worse, of 7
- Safety: 1 measure better than the national rate, 0 worse, of 7
BScore 64 · GoodSee Full Grade
(808) 263-5015
Kailua, HONOLULU County
Emergency dept.
Birthing-Friendly
3
Pali Momi Medical Center - Aiea, HI · Acute care hospital · proprietary CMS Care Compare · data as of Sep 2026
- CMS overall rating 4 of 5 — top quarter among Hawaii acute care hospitals
- Mortality: 1 measure better than the national rate, 0 worse, of 7
- Safety: 1 measure better than the national rate, 0 worse, of 6
BScore 61 · GoodSee Full Grade
(808) 486-6000
Aiea, HONOLULU County
Emergency dept.
4
Straub Clinic And Hospital - Honolulu, HI · Acute care hospital · proprietary CMS Care Compare · data as of Sep 2026
- CMS overall rating 4 of 5 — top quarter among Hawaii acute care hospitals
- Mortality: 0 measures better than the national rate, 0 worse, of 8
- Safety: 1 measure better than the national rate, 1 worse, of 7
CScore 52 · AverageSee Full Grade
(808) 522-4000
Honolulu, HONOLULU County
Emergency dept.
5
The Queens Medical Center - Honolulu, HI · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026
- CMS overall rating 3 of 5 — below median among Hawaii acute care hospitals
- Mortality: 1 measure better than the national rate, 0 worse, of 8
- Safety: 3 measures better than the national rate, 2 worse, of 8
CScore 52 · AverageSee Full Grade
(808) 538-9011
Honolulu, HONOLULU County
Emergency dept.
Birthing-Friendly
6
North Hawaii Community Hospital, Inc - Kamuela, HI · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026
- CMS overall rating 3 of 5 — below median among Hawaii acute care hospitals
- Mortality: 0 measures better than the national rate, 0 worse, of 4
- Safety: 0 measures better than the national rate, 0 worse, of 2
CScore 50 · AverageSee Full Grade
(808) 885-4444
Kamuela, HAWAII County
Emergency dept.
Birthing-Friendly
7
Wilcox Memorial Hospital - Lihue, HI · Acute care hospital · government - federal CMS Care Compare · data as of Sep 2026
- CMS overall rating 2 of 5 — bottom quarter among Hawaii acute care hospitals
- Mortality: 0 measures better than the national rate, 0 worse, of 4
- Safety: 1 measure better than the national rate, 0 worse, of 4
CScore 48 · AverageSee Full Grade
(808) 245-1100
Lihue, KAUAI County
Emergency dept.
Birthing-Friendly
8
Hilo Benioff Medical Center - Hilo, HI · Acute care hospital · government - state CMS Care Compare · data as of Sep 2026
- CMS overall rating 3 of 5 — below median among Hawaii acute care hospitals
- Mortality: 0 measures better than the national rate, 0 worse, of 7
- Safety: 2 measures better than the national rate, 0 worse, of 6
CScore 47 · AverageSee Full Grade
(808) 932-3000
Hilo, HAWAII County
Emergency dept.
Birthing-Friendly
9
Kaiser Foundation Hospital - Honolulu, HI · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026
- CMS overall rating 4 of 5 — top quarter among Hawaii acute care hospitals
- Mortality: 0 measures better than the national rate, 0 worse, of 3
- Safety: 0 measures better than the national rate, 0 worse, of 6
CScore 44 · AverageSee Full Grade
(808) 432-0000
Honolulu, HONOLULU County
Emergency dept.
Birthing-Friendly
10
Maui Memorial Medical Center - Wailuku, HI · Acute care hospital · government - state CMS Care Compare · data as of Sep 2026
- CMS overall rating 2 of 5 — bottom quarter among Hawaii acute care hospitals
- Mortality: 0 measures better than the national rate, 2 worse, of 7
- Safety: 1 measure better than the national rate, 0 worse, of 6
DScore 30 · Below averageSee Full Grade
(808) 244-9056
Wailuku, MAUI County
Birthing-Friendly
11
Kona Community Hospital - Kealakekua, HI · Acute care hospital · government - state CMS Care Compare · data as of Sep 2026
- CMS overall rating 2 of 5 — bottom quarter among Hawaii acute care hospitals
- Mortality: 0 measures better than the national rate, 1 worse, of 5
- Safety: 0 measures better than the national rate, 0 worse, of 5
DScore 28 · Below averageSee Full Grade
(808) 322-9311
Kealakekua, HAWAII County
Emergency dept.
Birthing-Friendly
How we grade hospitals
What data goes into a grade?
CMS Care Compare Hospital General Information: CMS overall rating (25), Mortality (25), Safety of care (25), Readmission (25). Each metric is percentile-ranked against Hawaii hospitals of the same type; A ≥ 72, B ≥ 58, C ≥ 42, D ≥ 28, F below. Hospitals with fewer than three of the four metrics are shown as "Not graded".
Why is a well-known hospital graded C?
The grade measures outcomes CMS reports — death rates, complications, infections, readmissions — not reputation, research or specialist rankings. A large teaching hospital that treats the sickest patients can score average on these measures. Use the grade as one input, alongside the specialists you need.
Can a hospital pay to improve its grade?
No. Grades are computed from public data and have no editable field. Nothing on this page is sponsored.