DRIVING  DIRECTIONS We are easily located on S.W. 21st Street, just off Meridian Avenue. We are south of I-40, west of I-44, and north of the Will Rogers International Airport. See map below. IF YOU ARE FLYING IN: Many of our customers get discounts at area hotels when flying in from out of town to visit our facility. Please call our office to schedule an appointment, and we can arrange to have you picked up from the airport. Call 1-800-637-9731. New Address: 4400 SW 21st ST. Oklahoma City, OK 73108 Directions: Our new building is on 4400 SW 21st STREET SOUTH OF I-40 Just off of Meridian Ave Behind the Ramada Limited Inn.