Best Dialysis Centers in California
Compare 737 Medicare-certified dialysis centers in California by CMS five-star quality rating.
Dialysis Centers in California — by the numbers
Star-rating distribution — California
About 16.6% of California's population is aged 65 or older (6,521,873 residents), which shapes demand for dialysis centers. Source: U.S. Census Bureau.
Highest-rated in California
Dialysis Centers by city
By county
Alameda County · Amador County · Butte County · Contra Costa County · Del Norte County · El Dorado County · Fresno County · Humboldt County · Imperial County · Inyo County · Kern County · Kings County · Lake County · Los Angeles County · Madera County · Marin County · Mendocino County · Merced County · Monterey County · Napa County · Nevada County · Orange County · Placer County · Riverside County · Sacramento County · San Benito County · San Bernardino County · San Diego County · San Francisco County · San Joaquin County · San Luis Obispo County · San Mateo County · Santa Barbara County · Santa Clara County · Santa Cruz County · Shasta County · Solano County · Sonoma County · Stanislaus County · Sutter County · Tehama County · Tulare County · Tuolumne County · Ventura County · Yolo County · Yuba County
How are these ratings calculated?
The CMS five-star quality rating comes from the Centers for Medicare & Medicaid Services. Read our plain-language explainer for dialysis centers to understand exactly what each star means — and what it does not.
Data as of June 20, 2026 · Source: CMS Provider Data Catalog.