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Home / Hospitals / California

Best Hospitals in California, Graded A–F

All 293 graded Medicare-certified hospitals in California, scored from CMS Care Compare — overall rating, mortality, safety of care and readmissions — against California 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, 2026
Grade distribution — California
A30
B56
C114
D68
F25
Highest graded
AAlta Bates Summit Medical Ce...A
Oakland · CMS overall rating 5 of 5 — top 10% amon...See grade
293 hospitalsgraded in California · 30 earned an A
All California Los Angeles (16)San Francisco (10)Sacramento (6)Bakersfield (5)Fresno (5)San Diego (5)Anaheim (4)Long Beach (4)Downey (3)
Highest in California 1

Alta Bates Summit Medical Center - Oakland, CA · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 5 of 5 — top 10% among California acute care hospitals
  • Mortality: 2 measures better than the national rate, 0 worse, of 8
  • Safety: 4 measures better than the national rate, 0 worse, of 7
AScore 95 · ExcellentSee Full Grade
(510) 655-4000 Oakland, ALAMEDA County Emergency dept.
2

Sutter Roseville Medical Center - Roseville, CA · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 5 of 5 — top 10% among California acute care hospitals
  • Mortality: 2 measures better than the national rate, 0 worse, of 7
  • Safety: 5 measures better than the national rate, 1 worse, of 7
AScore 93 · ExcellentSee Full Grade
(916) 781-1000 Roseville, PLACER County Emergency dept. Birthing-Friendly
3

Scripps Memorial Hospital La Jolla - La Jolla, CA · Acute care hospital · physician CMS Care Compare · data as of Sep 2026

  • CMS overall rating 5 of 5 — top 10% among California acute care hospitals
  • Mortality: 4 measures better than the national rate, 0 worse, of 8
  • Safety: 3 measures better than the national rate, 1 worse, of 8
AScore 90 · ExcellentSee Full Grade
(858) 626-4123 La Jolla, SAN DIEGO County Emergency dept. Birthing-Friendly
4

Cedars-Sinai Medical Center - Los Angeles, CA · Acute care hospital · voluntary non-profit - other CMS Care Compare · data as of Sep 2026

  • CMS overall rating 5 of 5 — top 10% among California acute care hospitals
  • Mortality: 7 measures better than the national rate, 0 worse, of 8
  • Safety: 4 measures better than the national rate, 0 worse, of 8
AScore 90 · ExcellentSee Full Grade
(310) 423-5000 Los Angeles, LOS ANGELES County Emergency dept. Birthing-Friendly
5

Hoag Memorial Hospital Presbyterian - Newport Beach, CA · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 5 of 5 — top 10% among California acute care hospitals
  • Mortality: 1 measure better than the national rate, 0 worse, of 8
  • Safety: 4 measures better than the national rate, 0 worse, of 7
AScore 90 · ExcellentSee Full Grade
(949) 764-4624 Newport Beach, ORANGE County Emergency dept. Birthing-Friendly
6

Scripps Green Hospital - La Jolla, CA · Acute care hospital · voluntary non-profit - other CMS Care Compare · data as of Sep 2026

  • CMS overall rating 5 of 5 — top 10% among California acute care hospitals
  • Mortality: 1 measure better than the national rate, 0 worse, of 6
  • Safety: 3 measures better than the national rate, 0 worse, of 7
AScore 90 · ExcellentSee Full Grade
(858) 554-3600 La Jolla, SAN DIEGO County
7

Stanford Health Care Tri-Valley - Pleasanton, CA · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 5 of 5 — top 10% among California acute care hospitals
  • Mortality: 2 measures better than the national rate, 0 worse, of 8
  • Safety: 2 measures better than the national rate, 0 worse, of 7
AScore 90 · ExcellentSee Full Grade
(925) 847-3000 Pleasanton, ALAMEDA County Emergency dept. Birthing-Friendly
8

Uci Health-Orange - Orange, CA · Acute care hospital · government - local CMS Care Compare · data as of Sep 2026

  • CMS overall rating 4 of 5 — above median among California acute care hospitals
  • Mortality: 3 measures better than the national rate, 0 worse, of 8
  • Safety: 4 measures better than the national rate, 0 worse, of 8
AScore 84 · ExcellentSee Full Grade
(714) 456-7890 Orange, ORANGE County Emergency dept. Birthing-Friendly
9

Marinhealth Medical Center - Greenbrae, CA · Acute care hospital · government - hospital district or authority CMS Care Compare · data as of Sep 2026

  • CMS overall rating 5 of 5 — top 10% among California acute care hospitals
  • Mortality: 2 measures better than the national rate, 0 worse, of 8
  • Safety: 1 measure better than the national rate, 0 worse, of 7
AScore 83 · ExcellentSee Full Grade
(415) 925-7900 Greenbrae, MARIN County Emergency dept. Birthing-Friendly
10

Sequoia Hospital - Redwood City, CA · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 5 of 5 — top 10% among California acute care hospitals
  • Mortality: 2 measures better than the national rate, 0 worse, of 8
  • Safety: 1 measure better than the national rate, 0 worse, of 5
AScore 83 · ExcellentSee Full Grade
(650) 369-5811 Redwood City, SAN MATEO County Emergency dept. Birthing-Friendly
11

Ucsf Medical Center - San Francisco, CA · Acute care hospital · voluntary non-profit - other CMS Care Compare · data as of Sep 2026

  • CMS overall rating 4 of 5 — above median among California acute care hospitals
  • Mortality: 5 measures better than the national rate, 0 worse, of 8
  • Safety: 3 measures better than the national rate, 0 worse, of 8
AScore 83 · ExcellentSee Full Grade
(415) 353-2733 San Francisco, SAN FRANCISCO County Emergency dept. Birthing-Friendly
12

Alta Bates Summit Medical Center - Alta Bates Camp - Berkeley, CA · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 4 of 5 — above median among California acute care hospitals
  • Mortality: 2 measures better than the national rate, 0 worse, of 7
  • Safety: 2 measures better than the national rate, 0 worse, of 7
AScore 83 · ExcellentSee Full Grade
(510) 204-4444 Berkeley, ALAMEDA County Emergency dept. Birthing-Friendly
13

El Camino Health - Mountain View, CA · Acute care hospital · government - hospital district or authority CMS Care Compare · data as of Sep 2026

  • CMS overall rating 4 of 5 — above median among California acute care hospitals
  • Mortality: 3 measures better than the national rate, 0 worse, of 8
  • Safety: 3 measures better than the national rate, 0 worse, of 8
AScore 82 · ExcellentSee Full Grade
(650) 940-7000 Mountain View, SANTA CLARA County Emergency dept. Birthing-Friendly
14

Uc San Diego Health Hillcrest - Hillcrest Med Ctr - San Diego, CA · Acute care hospital · voluntary non-profit - other CMS Care Compare · data as of Sep 2026

  • CMS overall rating 5 of 5 — top 10% among California acute care hospitals
  • Mortality: 6 measures better than the national rate, 0 worse, of 8
  • Safety: 3 measures better than the national rate, 0 worse, of 8
AScore 81 · ExcellentSee Full Grade
(619) 543-6222 San Diego, SAN DIEGO County Emergency dept. Birthing-Friendly
15

Providence Mission Hospital - Mission Viejo, CA · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 5 of 5 — top 10% among California acute care hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 8
  • Safety: 3 measures better than the national rate, 0 worse, of 7
AScore 80 · ExcellentSee Full Grade
(949) 364-1400 Mission Viejo, ORANGE County Emergency dept. Birthing-Friendly
16

Scripps Memorial Hospital - Encinitas - Encinitas, CA · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 4 of 5 — above median among California acute care hospitals
  • Mortality: 3 measures better than the national rate, 0 worse, of 7
  • Safety: 1 measure better than the national rate, 0 worse, of 7
AScore 79 · ExcellentSee Full Grade
(760) 753-6501 Encinitas, SAN DIEGO County Emergency dept. Birthing-Friendly
17

Pomona Valley Hospital Medical Center - Pomona, CA · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 3 of 5 — below median among California acute care hospitals
  • Mortality: 1 measure better than the national rate, 0 worse, of 8
  • Safety: 4 measures better than the national rate, 0 worse, of 7
AScore 79 · ExcellentSee Full Grade
(909) 865-9500 Pomona, LOS ANGELES County Emergency dept. Birthing-Friendly
18

Keck Hospital Of Usc - Los Angeles, CA · Acute care hospital · voluntary non-profit - other CMS Care Compare · data as of Sep 2026

  • CMS overall rating 5 of 5 — top 10% among California acute care hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 6
  • Safety: 3 measures better than the national rate, 0 worse, of 8
AScore 78 · ExcellentSee Full Grade
(323) 442-8656 Los Angeles, LOS ANGELES County
19

Eisenhower Medical Center - Rancho Mirage, CA · Acute care hospital · proprietary CMS Care Compare · data as of Sep 2026

  • CMS overall rating 4 of 5 — above median among California acute care hospitals
  • Mortality: 0 measures better than the national rate, 0 worse, of 8
  • Safety: 5 measures better than the national rate, 0 worse, of 8
AScore 78 · ExcellentSee Full Grade
(760) 340-3911 Rancho Mirage, RIVERSIDE County Emergency dept. Birthing-Friendly
20

St Johns Regional Medical Center - Oxnard, CA · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 4 of 5 — above median among California acute care hospitals
  • Mortality: 2 measures better than the national rate, 0 worse, of 8
  • Safety: 2 measures better than the national rate, 0 worse, of 7
AScore 77 · ExcellentSee Full Grade
(805) 988-2500 Oxnard, VENTURA County Emergency dept. Birthing-Friendly
21

Los Angeles Community Hospital - Los Angeles, CA · Acute care hospital · proprietary CMS Care Compare · data as of Sep 2026

  • CMS overall rating 3 of 5 — below median among California acute care hospitals
  • Mortality: 3 measures better than the national rate, 0 worse, of 5
  • Safety: 2 measures better than the national rate, 0 worse, of 4
AScore 77 · ExcellentSee Full Grade
(323) 267-0477 Los Angeles, LOS ANGELES County Emergency dept.
22

Stanford Health Care - Stanford, CA · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 5 of 5 — top 10% among California acute care hospitals
  • Mortality: 5 measures better than the national rate, 0 worse, of 8
  • Safety: 3 measures better than the national rate, 0 worse, of 8
AScore 76 · ExcellentSee Full Grade
(650) 723-4000 Stanford, SANTA CLARA County Emergency dept.
23

Peninsula Medical Center - Burlingame, CA · Acute care hospital · voluntary non-profit - private CMS Care Compare · data as of Sep 2026

  • CMS overall rating 5 of 5 — top 10% among California acute care hospitals
  • Mortality: 2 measures better than the national rate, 0 worse, of 8
  • Safety: 2 measures better than the national rate, 0 worse, of 7
AScore 76 · ExcellentSee Full Grade
(650) 696-5400 Burlingame, SAN MATEO County Emergency dept. Birthing-Friendly
24

St Mary Medical Center - Long Beach, CA · Acute care hospital · voluntary non-profit - church CMS Care Compare · data as of Sep 2026

  • CMS overall rating 5 of 5 — top 10% among California 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
AScore 75 · ExcellentSee Full Grade
(562) 491-9000 Long Beach, LOS ANGELES County Emergency dept. Birthing-Friendly
25

Memorialcare Orange Coast Medical Center - Fountain Valley, CA · Acute care hospital · proprietary CMS Care Compare · data as of Sep 2026

  • CMS overall rating 4 of 5 — above median among California acute care hospitals
  • Mortality: 1 measure better than the national rate, 0 worse, of 8
  • Safety: 2 measures better than the national rate, 0 worse, of 7
AScore 75 · ExcellentSee Full Grade
(714) 378-7000 Fountain Valley, ORANGE County Emergency dept. Birthing-Friendly
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California hospitals by city

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 California 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.