John Muir Medical Center - Concord Campus in Concord, CA
Also known as John Muir Medical Center, Concord, Mount Diablo Hospital Medical Center
In a medical emergency, call 911. This page is for information only.
About John Muir Medical Center - Concord Campus
John Muir Medical Center - Concord Campus is an acute care hospital in Concord, Contra Costa County, California. It reports its ownership to Medicare as nonprofit (private). It provides emergency services. Its CMS Overall Hospital Quality Star Rating is 4 out of 5. It has 244 licensed beds, according to state license data via HIFLD. The nearest other listed hospital is John Muir Behavioral Health Center, about 0.2 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 0.25
- Catheter-associated urinary tract infections (CAUTI)No different · SIR 0.64
- Clostridioides difficile (C. diff) infectionsBetter than national · SIR 0.68
- Central line bloodstream infections (CLABSI)Better than national · SIR 0.23
- Surgical site infections after colon surgeryNo different · SIR 0.90
72% 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 1072%
- Completed surveys521
Survey period ending September 2025. Source: CMS HCAHPS Patient Survey.
Map
37.98327, -122.03439
Nearby hospitals
- John Muir Behavioral Health Center2740 Grant Street, Concord, CA · Emergency roomPsychiatric hospital0.2 mi
- John Muir Medical Center - Walnut Creek Campus1601 Ygnacio Valley Rd, Walnut Creek, CA · Level II traumaAcute care hospital4.8 mi
- Contra Costa Regional Medical Center2500 Alhambra Avenue, Martinez, CA · Emergency roomAcute care hospital5.5 mi
- Kaiser Foundation Hospital - Walnut Creek1425 S Main Street, Walnut Creek, CA · Emergency roomAcute care hospital6.4 mi
- Sutter Delta Medical Center3901 Lone Tree Way, Antioch, CA · Emergency roomAcute care hospital13 mi
- Kaiser Foundation Hospital - Antioch4501 Sand Creek Road, Antioch, CA · Emergency roomAcute care hospital14 mi
- San Ramon Regional Medical Center6001 Norris Canyon Road, San Ramon, CA · Emergency roomAcute care hospital15 mi
- Adventist Health Vallejo525 Oregon St, Vallejo, CAPsychiatric hospital15 mi
- Sutter Solano Medical Center300 Hospital Dr, Vallejo, CA · Emergency roomAcute care hospital15 mi
- Kaiser Foundation Hospital and Rehab Center975 Sereno Dr, Vallejo, CAAcute care hospital15 mi
Frequently asked questions
Where is John Muir Medical Center - Concord Campus located?
John Muir Medical Center - Concord Campus is at 2540 East St, Concord, CA 94520 in Contra Costa County.
Does John Muir Medical Center - Concord Campus have an emergency room?
Yes. John Muir Medical Center - Concord Campus reports emergency services to Medicare, and patients spent a median of 145 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 - Concord Campus?
John Muir Medical Center - Concord Campus has a CMS Overall Hospital Quality Star Rating of 4 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 - Concord Campus a trauma center?
We have no trauma center designation on record for John Muir Medical Center - Concord Campus. 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 John Muir Medical Center - Concord Campus?
The main phone number on record with Medicare is (925) 682-8200.
Would patients recommend John Muir Medical Center - Concord Campus?
In the most recent HCAHPS patient survey (521 completed surveys), 77% of patients said they would definitely recommend the hospital, and 72% rated it 9 or 10 out of 10.
Related guides
- How CMS Hospital Star Ratings WorkThe five measure groups behind the 1 to 5 star Overall Hospital Quality Star Rating, how it is calculated and what it leaves out.
- How to Choose a HospitalA practical checklist for planned care: insurance networks, procedure volume, quality ratings, certifications and cost estimates.
- 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.