Why Choose Altus Hospital ER’s? If you or a loved one arehaving a medical emergency, Altus Hospital and its network of emergency rooms are the best ER option in Baytown and Houston. Our emergency rooms deliver the most comprehensive emergency care in the area. To ensure we provide the best care for our patients, we have built a team of the most experienced ER physicians, nurses, technicians, and clinical staff, available to assess your needs 24/7 every day of the year.