First Choice Emergency Room is the nation’s leading freestanding emergency room system; it is both largest and the oldest. First Choice Emergency Room facilities are innovative, freestanding, and fully equipped emergency rooms with state of the art diagnostic technology (CT Scanners, Ultrasound, Digital X-ray) and on-site labs. All First Choice Emergency Room locations are exclusively staffed with board-certified emergency physicians and emergency trained registered nurses.
Dr. Castellanos received his undergraduate degree from the University of Michigan and his medical degree from Michigan State University. He completed his family practice residency at Memorial Medical Center in Corpus Christi, Texas and is board-certified in emergency medicine. Prior to joining First Choice Emergency Room, Dr. Castellanos worked as an emergency physician at John Peter Smith Trauma Center in Fort Worth, Texas and at Medina Regional Hospital in Hondo, Texas. He has over 20 years experience practicing emergency medicine.