Northbay Medical Center in Fairfield, CA
In a medical emergency, call 911. This page is for information only.
About Northbay Medical Center
Northbay Medical Center is an acute care hospital in Fairfield, Solano County, California. It reports its ownership to Medicare as nonprofit (private). It provides emergency services. It is listed as a Level III trauma center. Its CMS Overall Hospital Quality Star Rating is 2 out of 5. It has 154 licensed beds, according to state license data via HIFLD. It meets the CMS Birthing-Friendly designation criteria for maternity care. The nearest other listed hospital is David Grant USAF Medical Center, about 4.5 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 0.92
- Catheter-associated urinary tract infections (CAUTI)No different · SIR 0.66
- Clostridioides difficile (C. diff) infectionsNo different · SIR 0.76
- Central line bloodstream infections (CLABSI)No different · SIR 0.98
- Surgical site infections after colon surgeryNo different · SIR 0.00
54% 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 recommend67%
- Rated the hospital 9 or 1064%
- Completed surveys1,123
Survey period ending September 2025. Source: CMS HCAHPS Patient Survey.
Map
38.26221, -122.04759
Nearby hospitals
- David Grant USAF Medical CenterFairfield, CAHospital4.5 mi
- 60th Medical Group (Travis AFB)101 Bodin Cir Bldg 777, Travis AFB, CA · Emergency roomMilitary hospital4.8 mi
- VacaValley Hospital1000 Nut Tree Road, Vacaville, CA · Emergency roomHospital8.3 mi
- Napa State HospitalNapa, CAPsychiatric hospital10 mi
- Kaiser Foundation Hospital - Vacaville1 Quality Drive, Vacaville, CA · Level II traumaAcute care hospital11 mi
- Dept of State Hospitals - Napa2100 Napa Vallejo Highway, Napa, CAPsychiatric hospital12 mi
- Sutter Solano Medical Center300 Hospital Dr, Vallejo, CA · Emergency roomAcute care hospital14 mi
- Providence Queen of the Valley Medical Center1000 Trancas St, Napa, CA · Level III traumaAcute care hospital14 mi
- Kaiser Foundation Hospital and Rehab Center975 Sereno Dr, Vallejo, CAAcute care hospital14 mi
- Adventist Health Vallejo525 Oregon St, Vallejo, CAPsychiatric hospital15 mi
Frequently asked questions
Where is Northbay Medical Center located?
Northbay Medical Center is at 1200 B Gale Wilson Blvd, Fairfield, CA 94533 in Solano County.
Does Northbay Medical Center have an emergency room?
Yes. Northbay Medical Center reports emergency services to Medicare, and patients spent a median of 176 minutes in its emergency department before leaving. In a life-threatening emergency, call 911.
What is the CMS star rating of Northbay Medical Center?
Northbay Medical Center 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 Northbay Medical Center a trauma center?
Yes. It is listed as a Level III 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 Northbay Medical Center?
The main phone number on record with Medicare is (707) 646-5000.
Would patients recommend Northbay Medical Center?
In the most recent HCAHPS patient survey (1,123 completed surveys), 67% of patients said they would definitely recommend the hospital, and 64% 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.