UCSF Health St. Mary's Hospital in San Francisco, CA
Also known as Saint Mary's Medical Center
In a medical emergency, call 911. This page is for information only.
About UCSF Health St. Mary's Hospital
UCSF Health St. Mary's Hospital is an acute care hospital in San Francisco, San Francisco 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 240 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 UC Medical Center Moffett & Long Hospitals, about 0.8 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 0.00
- Catheter-associated urinary tract infections (CAUTI)No different · SIR 0.00
- Clostridioides difficile (C. diff) infectionsBetter than national · SIR 0.00
- Central line bloodstream infections (CLABSI)No different · SIR 0.00
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 recommend60%
- Rated the hospital 9 or 1058%
- Completed surveys587
Survey period ending September 2025. Source: CMS HCAHPS Patient Survey.
Map
37.77380, -122.45440
Nearby hospitals
- UC Medical Center Moffett & Long HospitalsSan Francisco, CAHospital0.8 mi
- UCSF Medical Center505 Parnassus Ave, Box 0296, San Francisco, CA · Emergency roomAcute care hospital0.8 mi
- Kaiser Foundation Hospital - San Francisco2425 Geary Blvd, San Francisco, CA · Emergency roomAcute care hospital0.9 mi
- UCSF Langley Porter Psychiatric Hospital and Clinics1600 Divisadero Street, 7th Floor, San Francisco, CAPsychiatric hospital1.1 mi
- California Pacific Medical Ctr-Davies Campus Hosp601 Duboce Avenue, San Francisco, CAAcute care hospital1.2 mi
- Laguna Honda Hospital & Rehabilitation Center375 Laguna Honda Blvd, San Francisco, CAAcute care hospital1.9 mi
- California Pacific Medical Center- Van Ness Campus1101 Van Ness Avenue, San Francisco, CA · Emergency roomAcute care hospital2.0 mi
- UCSF Health Saint Francis Hospital900 Hyde St, San Francisco, CA · Emergency roomAcute care hospital2.3 mi
- California Pacific Medical Center - Mission Bernal3555 Cesar Chavez, San Francisco, CA · Emergency roomAcute care hospital2.6 mi
- Kaiser Foundation Hospital - South San Francisco1200 El Camino Real, South San Francisco, CA · Emergency roomAcute care hospital2.7 mi
Frequently asked questions
Where is UCSF Health St. Mary's Hospital located?
UCSF Health St. Mary's Hospital is at 450 Stanyan St, San Francisco, CA 94117 in San Francisco County.
Does UCSF Health St. Mary's Hospital have an emergency room?
Yes. UCSF Health St. Mary's Hospital reports emergency services to Medicare, and patients spent a median of 166 minutes in its emergency department before leaving. In a life-threatening emergency, call 911.
What is the CMS star rating of UCSF Health St. Mary's Hospital?
UCSF Health St. Mary's Hospital 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 UCSF Health St. Mary's Hospital a trauma center?
We have no trauma center designation on record for UCSF Health St. Mary's Hospital. 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 UCSF Health St. Mary's Hospital?
The main phone number on record with Medicare is (415) 668-1000.
Would patients recommend UCSF Health St. Mary's Hospital?
In the most recent HCAHPS patient survey (587 completed surveys), 60% of patients said they would definitely recommend the hospital, and 58% 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.