After obtaining his Medical Degree Dr. Gullung completed his residency with the University of Alabama Birmingham Hospital. Wanting to further his training he them completed his Orthopedic Surgeon fellowship with the University of Mississippi Medical Center. He certified by the American Board of Orthopaedic Surgery. To stay up to date in his field he remains a professional member of the American Academy of Orthopaedic Surgeons, AOSpine Medical Association of the State of Alabama, and the American Medical Association North American Spine Society