Serving the Cypress community, HCA Houston ER 24/7 – Cypress Fairbanks, a department of HCA Houston Healthcare Tomball, is a conveniently located, full-service emergency room providing care for all types of acute injuries and illnesses. We offer fast, convenient care, 24 hours a day, seven days a week, including holidays.For emergency visits requiring inpatient care, HCA Houston ER 24/7 will facilitate your admission to the hospital of your choice. We can also provide direct admission by ambulance to a room at an HCA Houston Healthcare affiliated hospital.