1. UCSF Medical Center – One of the most prominent hospitals in Northern California, part of UCSF Health. It consistently ranks among the top hospitals in the nation for specialty care including cancer, neurology, geriatrics, pulmonology, and many other fields. UCSF’s multiple campuses attract high patient volumes and referrals from across the region. 

2. UCSF Medical Center at Mission Bay – A major UCSF campus focused on advanced clinical care, research, and innovative treatments; serves many outpatient and inpatient visits.

3. UCSF Health Hyde Hospital – UCSF-affiliated medical center near downtown San Francisco providing broad acute and specialty care.

4. UCSF Health Stanyan Hospital – Another key UCSF facility, often used for referrals and part of the UCSF network with high quality ratings. 

5. Zuckerberg San Francisco General Hospital and Trauma Center – San Francisco’s primary public hospital and the only Level I trauma center in the city, handling a high volume of emergency, critical, and inpatient care for diverse communities.

6. Kaiser Permanente San Francisco Medical Center – Part of the Kaiser Permanente integrated health system, this medical center manages a large number of patient visits, primary care, and specialty services.

7. CPMC Davies Campus – A Sutter Health hospital campus serving emergency services, surgery, and a variety of clinical departments.

8. CPMC Imaging, Van Ness Campus, 1100 Van Ness Avenue – Another Sutter Health-affiliated hospital known for advanced diagnostics, specialty care, and transplant programs.

9. St. Mary’s Medical Center – Historic hospital offering a range of inpatient care (note: same location as business ID but different listed rating; this may include radiology, surgery, oncology, etc.).

10. CPMC Mission Bernal Campus & Orthopedic Institute – A facility within the Sutter network focusing on orthopedics and other hospital services.

11. Kaiser Permanente South San Francisco Medical Center – Located just south of the city proper; serves many Bay Area patients (included here because of overall regional utilization).