Adventist Health Simi Valley in Simi Valley, CA
In a medical emergency, call 911. This page is for information only.
About Adventist Health Simi Valley
Adventist Health Simi Valley is an acute care hospital in Simi Valley, Ventura County, California. It reports its ownership to Medicare as nonprofit (private). It provides emergency services. Its CMS Overall Hospital Quality Star Rating is 2 out of 5. It has 144 licensed beds, according to state license data via HIFLD. CMS also lists an inpatient rehabilitation unit inside the hospital. The nearest other listed hospital is UCLA West Valley Medical Center, about 8.9 mi away.
Quality ratings
How this hospital compares with the national rate on each measure group:
Source: Centers for Medicare & Medicaid Services, Hospital General Information. How star ratings work.
Emergency room times
Lower times are better. Reporting period ending September 2025. Source: CMS Timely and Effective Care. What these numbers mean.
Infections and sepsis care
- MRSA bloodstream infectionsNo different · SIR 2.75
- Catheter-associated urinary tract infections (CAUTI)No different · SIR 0.00
- Clostridioides difficile (C. diff) infectionsBetter than national · SIR 0.16
- Central line bloodstream infections (CLABSI)Worse than national · SIR 3.42
- Surgical site infections after colon surgeryNo different · SIR 0.00
81% of patients with severe sepsis or septic shock received all the recommended early care steps (SEP-1). Higher is better.
SIR is the standardized infection ratio: below 1 means fewer infections than predicted for a hospital like this one. Period ending September 2025. Source: CMS Healthcare-Associated Infections and Timely and Effective Care.
What patients say
- Patient survey star rating
- Would definitely recommend66%
- Rated the hospital 9 or 1067%
- Completed surveys486
Survey period ending September 2025. Source: CMS HCAHPS Patient Survey.
Map
34.28870, -118.74397
Nearby hospitals
- UCLA West Valley Medical Center7300 Medical Center Dr, West Hills, CA · Emergency roomAcute care hospital8.9 mi
- Los Robles Hospital & Medical Center215 W Janss Rd, Thousand Oaks, CA · Level II traumaAcute care hospital9.7 mi
- Motion Picture And Television Hospital23388 Mulholland Drive, Woodland Hills, CAPsychiatric hospital11 mi
- Kaiser Foundation Hospital - Woodland Hills5601 De Soto Avenue, Woodland Hills, CAAcute care hospital12 mi
- Joyce Eisenberg Keefer Medical Center7150 Tampa Avenue, Reseda, CAPsychiatric hospital12 mi
- Northridge Hospital Medical Center18300 Roscoe Blvd, Northridge, CA · Level II traumaAcute care hospital13 mi
- Henry Mayo Newhall Hospital23845 Mcbean Pkwy, Valencia, CA · Level II traumaAcute care hospital13 mi
- Mary Health of the Sick Convalescent and Nursing Hospital2929 Theresa Drive, Newbury Park, CAHospital13 mi
- Tarzana Treatment Center18646 Oxnard Street, Tarzana, CAPsychiatric hospital14 mi
- Providence Cedars Sinai Tarzana Medical Center18321 Clark Street, Tarzana, CA · Level I traumaAcute care hospital15 mi
Frequently asked questions
Where is Adventist Health Simi Valley located?
Adventist Health Simi Valley is at 2975 N Sycamore Dr, Simi Valley, CA 93065 in Ventura County.
Does Adventist Health Simi Valley have an emergency room?
Yes. Adventist Health Simi Valley reports emergency services to Medicare, and patients spent a median of 156 minutes in its emergency department before leaving. In a life-threatening emergency, call 911.
What is the CMS star rating of Adventist Health Simi Valley?
Adventist Health Simi Valley has a CMS Overall Hospital Quality Star Rating of 2 out of 5. The rating combines measures of mortality, safety of care, readmission, patient experience and timely and effective care, compared with hospitals nationwide.
Is Adventist Health Simi Valley a trauma center?
We have no trauma center designation on record for Adventist Health Simi Valley. Hospitals without one still treat injuries in their emergency department and transfer patients who need a trauma center. Check the California trauma program for the current list.
What is the phone number of Adventist Health Simi Valley?
The main phone number on record with Medicare is (805) 955-6000.
Would patients recommend Adventist Health Simi Valley?
In the most recent HCAHPS patient survey (486 completed surveys), 66% of patients said they would definitely recommend the hospital, and 67% rated it 9 or 10 out of 10.
Related guides
- ER Wait Times ExplainedHow triage and the Emergency Severity Index decide who is seen first, why emergency rooms get crowded and where to find timing data.
- What Is a Trauma Center? Levels I to V ExplainedWhat each trauma center level provides, who designates and verifies them, pediatric trauma centers and how trauma systems route patients.
- What Is a Teaching Hospital?How residency training works, who is on the care team, the benefits and trade-offs for patients, and your rights at an academic medical center.
- How to Read a Hospital BillItemized bills, EOBs and billing codes explained, plus No Surprises Act protections and a step-by-step way to check for errors.