John Muir Medical Center - Walnut Creek Campus in Walnut Creek, CA
Also known as John Muir Medical Center, Walnut Creek Medical Center.
In a medical emergency, call 911. This page is for information only.
About John Muir Medical Center - Walnut Creek Campus
John Muir Medical Center - Walnut Creek Campus is an acute care hospital in Walnut Creek, Contra Costa County, California. It reports its ownership to Medicare as nonprofit (other). It provides emergency services. It is listed as a Level II trauma center. Its CMS Overall Hospital Quality Star Rating is 2 out of 5. It has 554 licensed beds, according to state license data via HIFLD. CMS also lists an inpatient rehabilitation unit inside the hospital. It meets the CMS Birthing-Friendly designation criteria for maternity care. The nearest other listed hospital is Kaiser Foundation Hospital - Walnut Creek, about 1.7 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 infectionsBetter than national · SIR 0.24
- Catheter-associated urinary tract infections (CAUTI)Better than national · SIR 0.54
- Clostridioides difficile (C. diff) infectionsBetter than national · SIR 0.46
- Central line bloodstream infections (CLABSI)Better than national · SIR 0.34
- Surgical site infections after abdominal hysterectomyNo different · SIR 1.88
- Surgical site infections after colon surgeryWorse than national · SIR 2.73
58% 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 recommend77%
- Rated the hospital 9 or 1069%
- Completed surveys758
Survey period ending September 2025. Source: CMS HCAHPS Patient Survey.
Map
37.91382, -122.04273
Nearby hospitals
- Kaiser Foundation Hospital - Walnut Creek1425 S Main Street, Walnut Creek, CA · Emergency roomAcute care hospital1.7 mi
- John Muir Medical Center - Concord Campus2540 East St, Concord, CA · Emergency roomAcute care hospital4.8 mi
- John Muir Behavioral Health Center2740 Grant Street, Concord, CA · Emergency roomPsychiatric hospital4.9 mi
- Contra Costa Regional Medical Center2500 Alhambra Avenue, Martinez, CA · Emergency roomAcute care hospital8.0 mi
- San Ramon Regional Medical Center6001 Norris Canyon Road, San Ramon, CA · Emergency roomAcute care hospital11 mi
- Alta Bates Summit Medical Center - Alta Bates Camp2450 Ashby Avenue, Berkeley, CA · Emergency roomAcute care hospital13 mi
- Telecare Heritage Psychiatric Health Facility2633 E 27th Street, Building B, Oakland, CAPsychiatric hospital13 mi
- Highland Hospital1411 East 31st Street, Oakland, CA · Level I traumaAcute care hospital13 mi
- Kaiser Foundation Hospital - Oakland/Richmond275 West Macarthur Boulevard, Oakland, CA · Emergency roomAcute care hospital13 mi
- UCSF Benioff Children's Hospital Oakland747 52nd Street, Oakland, CA · Emergency roomChildren's hospital13 mi
Frequently asked questions
Where is John Muir Medical Center - Walnut Creek Campus located?
John Muir Medical Center - Walnut Creek Campus is at 1601 Ygnacio Valley Rd, Walnut Creek, CA 94598 in Contra Costa County.
Does John Muir Medical Center - Walnut Creek Campus have an emergency room?
Yes. John Muir Medical Center - Walnut Creek Campus reports emergency services to Medicare, and patients spent a median of 171 minutes in its emergency department before leaving. In a life-threatening emergency, call 911.
What is the CMS star rating of John Muir Medical Center - Walnut Creek Campus?
John Muir Medical Center - Walnut Creek Campus 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 John Muir Medical Center - Walnut Creek Campus a trauma center?
Yes. It is listed as a Level II trauma center in the HIFLD hospitals data, which is compiled from state trauma registries (source date March 2024). Trauma designations are renewed periodically, so confirm with the California EMS or trauma program. In an emergency, call 911: paramedics take seriously injured patients to the right trauma center.
What is the phone number of John Muir Medical Center - Walnut Creek Campus?
The main phone number on record with Medicare is (925) 939-3000.
Would patients recommend John Muir Medical Center - Walnut Creek Campus?
In the most recent HCAHPS patient survey (758 completed surveys), 77% of patients said they would definitely recommend the hospital, and 69% rated it 9 or 10 out of 10.
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