His clinical focus centers around spinal deformity and biomechanics as well as treatment of disorders of the cervical, thoracic, and lumbar spine. His areas of expertise are herniated disc; spinal stenosis; scoliosis; spinal instability & deformity; spinal tumor and infection in both adult and pediatric patients. His research interests include spinal biomechanics, quality improvement/outcomes, and neurosurgical medical education. In addition to specialized spine surgery, Dr. Mullin also practices general cranial neurosurgery.