Sharp Coronado Hospital Emergency Room on Prospect Place is the sole emergency department on Coronado Island, serving the 92118 ZIP code as a certified Primary Stroke Center within the Sharp HealthCare network. A $46.2 million expansion completed in January 2025 doubled the department from eight to fifteen treatment bays and secured that stroke-center designation — making Sharp Coronado one of the smallest hospitals nationally to achieve the certification — while post-discharge primary-care follow-up routes through Jenny Wong, MD at SharpCare Coronado on the adjacent Prospect Place campus. The department handles trauma stabilization, chest-pain evaluation, pediatric emergencies, and fracture management for the Coronado Island population stretching from Orange Avenue's commercial core to North Island Naval Air Station, plus the tourism volume generated by Coronado Beach and Hotel Del Coronado. American College of Emergency Physicians accreditation for geriatric emergency care reflects the department's age-specific protocols — including bedside triage that bypasses the waiting area — and connects to the elder-care continuum anchored by Villa Coronado Skilled Nursing Facility within the Sharp Coronado system. Transfer capability links the basic-service-level department to Sharp Memorial Hospital's Level II trauma center for cases exceeding local surgical capacity, while the co-located Payne Family Outpatient Pavilion delivers robotic-assisted surgery and the fourth-floor Sherrie and Ron Auen Intensive Care Unit provides seven private critical-care bays. Coronado Island's compact geography places every medical practice in the 92118 ZIP within walking or driving distance of the Coronado Bridge approach, the Orange Avenue village, and the Coronado Ferry Landing. The island's compact 92118 geography means every resident, visitor, and military family member on Coronado is within minutes of emergency medical response, whether the call originates from Coronado Beach, the Orange Avenue corridor, the Coronado Shores towers, or the military housing zones near Naval Air Station North Island.