facebook tracking Best Hospitals in California (2026): 279 Ranked by CMS Stars

Best hospitals in California, ranked by CMS star rating

Ranked by Medicare's overall hospital star rating (CMS, October 2026 release). Stars summarize quality measures; they are not patient reviews.

According to HospitalsInEachState.com's analysis of the October 2026 CMS release, California's 279 rated hospitals average 3.10 Medicare stars, against a US average of 3.21, ranking #35 of 50 states in the HospitalsInEachState.com State Hospital Quality Rankings. 116 hold 4 or 5 stars (29 with 5) and 88 are rated 1 or 2 stars.

CMS data published October 2026279 rated hospitalsRanked #35 of 50
State rank #35 of 50 In the middle of the pack · all states
Average rating 3.10 stars −0.11 vs U.S. U.S. is 3.21
Rated 4–5 stars 42% 116 of 279 hospitals
Rated 1–2 stars 32% 88 of 279 hospitals

Top 5 hospitals in California by CMS stars

#HospitalCityCMS stars
1 Alta Bates Summit Medical Center Oakland
2 Cedars-Sinai Medical Center Los Angeles
3 Frank R Howard Memorial Hospital Willits
4 French Hospital Medical Center San Luis Obispo
5 Fresno VA Medical Center (VA Central California Healthcare System) Fresno

How California hospitals are rated

Number of rated hospitals at each star level. Pick a level to filter the list below.

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All 279 rated hospitals in California

Sorted from the highest CMS overall rating to the lowest. 136 other California hospitals in our directory have no CMS rating, usually because they report too few measures.

Showing the top 25 of 279 hospitals

Latest national report: 79% of Utah's rated hospitals have 4 or 5 CMS stars; 14% of Mississippi's do (Nov 13, 2026)

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How California compares with its neighbors

RankStateAvg starsRated 4–5 ★5 ★ / 1 ★
#20 Oregon 3.25 45% 3 / 2
#34 Arizona 3.11 33% 8 / 1
#35 California 3.10 42% 29 / 29
#40 Nevada 3.00 28% 3 / 0

Questions about California hospital ratings

What are the best-rated hospitals in California?

29 California hospitals have the top 5-star CMS rating: Alta Bates Summit Medical Center (Oakland), Cedars-Sinai Medical Center (Los Angeles), Frank R Howard Memorial Hospital (Willits), French Hospital Medical Center (San Luis Obispo), Fresno VA Medical Center (VA Central California Healthcare System) (Fresno), Goleta Valley Cottage Hospital (Santa Barbara) and 23 more, all listed on this page.

How does California rank for hospital quality?

California ranks #35 of 50 states. Its 279 rated hospitals average 3.10 stars, against a U.S. average of 3.21. 42% are rated 4 or 5 stars and 32% are rated 1 or 2 stars.

How many California hospitals have a 1-star rating?

29 of 279 rated California hospitals have the lowest 1-star rating, and 59 have 2 stars.

Why isn't my hospital on this list?

Only hospitals with a CMS overall star rating are listed. 136 other California hospitals in our directory have no rating, usually because they report too few measures. That is common for small rural, critical access and specialty hospitals. Every hospital still has its own page in the California hospital directory.

Cite this data

Journalists, researchers and site owners are welcome to quote and chart these figures. They are free to use under CC BY 4.0: please credit HospitalsInEachState.com and link to this page.

Figures as of the October 2026 CMS release Updated automatically when CMS publishes new data Permanent link: hospitalsineachstate.com/hospital-ratings/california/

Download the data (CSV) See how all 50 states rank

Source: CMS Care Compare, Hospital General Information, published October 2026. Each facility is counted once by its CMS Certification Number. Updated automatically when CMS publishes new data.

A star rating summarizes many measures and does not capture every service. Talk to your doctor about which hospital is right for your care. About the data. Not affiliated with CMS. For a medical emergency, call 911.