San Diego County's oldest hospital and a Level I Trauma Center verified by the American College of Surgeons Committee on Trauma since 2003, Scripps Mercy Hospital San Diego operates 482 licensed acute-care beds at its Hillcrest campus at 4077 Fifth Avenue in 92103. The Hillcrest campus anchors a trauma service treating roughly 2,500 critically injured patients per year across a catchment bordered by Interstate 805, Highway 94, and the US-Mexico border, with fracture and hardware follow-up transitioning to outpatient orthopedic surgeons such as San Diego Orthopaedic Associates Medical Group, Inc. after discharge. The Conrad Prebys Emergency and Trauma Center houses the hospital's emergency operations, while a Level II neonatal intensive care unit supports the on-site childbirth program and the O'Toole Breast Care Center provides multidisciplinary cancer workups. Orthopedic and neurosurgical discharges — ACL reconstructions, rotator cuff repairs, spinal fusions — transition into outpatient physical therapy at independent Hillcrest clinics including PRN Physical Therapy - San Diego, 4th Ave. for gait retraining, range-of-motion work, and return-to-activity progressions. Robot-assisted minimally invasive procedures performed in the hospital's surgical suites cover urologic, colorectal, gynecologic, and general surgery cases, positioning Scripps Mercy as the private teaching arm of a UC San Diego and Naval Medical Center San Diego academic affiliation that trains emergency medicine, surgery, and internal medicine residents on-site.