Data / Hospitals / Adventist Health System/West

Adventist Health System/West: 19 hospitals, 4 with HAC payment reductions

Name: Hospitals owned or managed by Adventist Health System/West
Creator: SpecStream
License: https://creativecommons.org/licenses/by/4.0/

CMS lists Adventist Health System/West as an owner or manager of 19 hospitals in 3 states, 16 of them with emergency services. The average overall rating is 3.1 of 5 and none is rated one star. In fiscal year 2026, 4 of them faced a 1% Medicare payment reduction under the Hospital-Acquired Condition Reduction Program, and 14 had an excess readmission ratio above 1.0 on at least one condition tracked by the Hospital Readmissions Reduction Program.

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Hospitals: 19, of which 1 owned and 19 managed
States: 3
Based in: Roseville, CA
CMS lists this owner as: chain home office, nonprofit
Average overall rating: 3.1 of 5
One star hospitals: 0
Five star hospitals: 0
With emergency services: 16
HAC payment reductions, fiscal year 2026: 4 of 15 in the program
With excess readmissions: 14

Hospitals

Hospitals with a HAC payment reduction first, then by most conditions with excess readmissions, then by lowest star rating. Each row links to the hospital page and its Medicare Care Compare record.

Hospital	City	State	Role	Type	Stars	Emergency	HAC payment cut	Excess readmission conditions	Source
Adventist Health Simi Valley	Simi Valley	CA	Operational or managerial control	Acute Care Hospitals	2	Yes	Yes	4	medicare.gov
Adventist Health Twin Cities	Templeton	CA	Operational or managerial control	Acute Care Hospitals	2	Yes	Yes	3	medicare.gov
Adventist Health Lodi Memorial	Lodi	CA	Operational or managerial control	Acute Care Hospitals	3	Yes	Yes	2	medicare.gov
Adventist Health Sonora	Sonora	CA	Operational or managerial control	Acute Care Hospitals	3	No	Yes	0	medicare.gov
Adventist Health Bakersfield	Bakersfield	CA	Operational or managerial control	Acute Care Hospitals	2	Yes	No	4	medicare.gov
Glendale Adventist Medical Center	Glendale	CA	Operational or managerial control	Acute Care Hospitals	4	Yes	No	4	medicare.gov
Adventist Health White Memorial	Los Angeles	CA	Operational or managerial control	Acute Care Hospitals	3	No	No	3	medicare.gov
Adventist Health Sierra Vista	San Luis Obispo	CA	Operational or managerial control	Acute Care Hospitals	3	Yes	No	2	medicare.gov
Adventist Health Tulare	Tulare	CA	Operational or managerial control	Acute Care Hospitals	3	Yes	No	2	medicare.gov
Adventist Health Castle	Kailua	HI	Direct owner, Operational or managerial control (100%)	Acute Care Hospitals	4	Yes	No	2	medicare.gov
Adventist Health Delano	Delano	CA	Operational or managerial control	Acute Care Hospitals	2	Yes	No	1	medicare.gov
Adventist Health Hanford	Hanford	CA	Operational or managerial control	Acute Care Hospitals	3	Yes	No	1	medicare.gov
Adventist Health Portland	Portland	OR	Operational or managerial control	Acute Care Hospitals	4	Yes	No	1	medicare.gov
Adventist Health St Helena	Saint Helena	CA	Operational or managerial control	Acute Care Hospitals	4	Yes	No	1	medicare.gov
Adventist Health Ukiah Valley	Ukiah	CA	Operational or managerial control	Acute Care Hospitals	4	Yes	No	1	medicare.gov
Adventist Health Clearlake	Clearlake	CA	Operational or managerial control	Critical Access Hospitals	2	Yes	Not in program	Not listed	medicare.gov
Adventist Health Tehachapi Valley	Tehachapi	CA	Operational or managerial control	Critical Access Hospitals	3	Yes	Not in program	Not listed	medicare.gov
Adventist Health Tillamook	Tillamook	OR	Operational or managerial control	Critical Access Hospitals	4	Yes	Not in program	Not listed	medicare.gov
Adventist Health Vallejo	Vallejo	CA	Operational or managerial control	Psychiatric	Not listed	No	Not in program	Not listed	medicare.gov

By state

State	Hospitals	Average stars	HAC payment cuts	With excess readmissions
California	16	2.9	4	12
Oregon	2	4	0	1
Hawaii	1	4	0	1

Updated November 7, 2026. Read from CMS Provider Data Catalog and data.cms.gov, hospitals. Open data from the Centers for Medicare & Medicaid Services (US government work). Ratings and program results are as CMS lists them on the date shown and CMS refreshes them on its own schedule. The CMS files are joined on the CMS Certification Number. CMS gives each owner organization an ID, and an owner page groups hospitals on that ID. Names of individual owners and managers are not shown. This page uses CMS data and is not endorsed or certified by CMS. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.