Designated the only academic Level I Trauma Center for San Diego and Imperial counties, Hillcrest Medical Center at UC San Diego Health is the 390-bed teaching hospital at 200 West Arbor Drive, opened on the site in 1963 and transferred to UCSD in 1966. Inbound ambulance and helicopter traffic feeds the trauma bays from across both counties, while non-acute walk-in patients are frequently redirected to lower-acuity community sites including Healthtopia Clinics when the emergency department reaches surge capacity. The campus also houses the San Diego Regional Burn Center, a Joint Commission Comprehensive Stroke Center, the Hyperbaric Medicine Center, the California Poison Control System's San Diego division, and an NIH-designated Clinical Research Center. The 36-bed emergency department handles roughly 50,000 patient visits a year as the only Licensed Comprehensive Emergency Department serving San Diego, Imperial, and Riverside counties. Inpatient renal consultations on the medicine wards route to outpatient dialysis and transplant follow-up clinics including Balboa Nephrology - Hillcrest, which manages post-discharge nephrology care for many UC San Diego transplant recipients in central San Diego. The hospital's most complex recurring workflow remains the multidisciplinary polytrauma resuscitation in the four-bed resuscitation suite, where trauma surgery, neurosurgery, orthopedics, anesthesia, and the burn team converge from page to operating room within minutes for critically injured patients arriving from across southern California's desert and inland counties.