If you are experiencing a life-threatening emergency, please call 911. When sudden and severe illnesses afflict you and your family, Mission Hospital’s Laguna Beach Emergency Department is ready to help 24 hours a day, seven days a week. Our board-certified ER doctors, nurses and specialty caregivers are trained and equipped to offer top quality emergency medical care at a moment’s notice. From heart attacks to broken bones, our Laguna Beach Emergency Department is fully equipped with highly trained doctors and leading medical technologies to treat illnesses and injuries.