Dr. Joshua M. Ammerman

Dr. Ali Bydon is a renowned neurosurgeon and director of the Division of Spine Surgery and the Neurosurgical Spine Center at the Johns Hopkins University School of Medicine. As the endowed Ziya Gokaslan Professor of Neurosurgery, he is dedicated to advancing the field through innovative clinical practices and extensive research. Additionally, Dr. Bydon serves as the vice chair for strategic planning within the Department of Neurosurgery. Dr. Bydon’s clinical practice is centered on degenerative disorders of the spine, spinal tumors, spinal trauma and complex spinal reconstruction. He is an esteemed member of the American Association of Neurological Surgeons and the Congress of Neurological Surgeons. Dr. Bydon earned his medical degree from the University of Michigan School of Medicine in 1999 and completed his residency in neurological surgery at Henry Ford Hospital in Detroit, where he graduated with distinction in 2006. He further honed his skillset by completing fellowships in minimally invasive spine surgery and the surgical treatment of peripheral nerves, followed by a one-year instructorship in spinal oncology and complex reconstructive spinal surgery at Johns Hopkins in 2007. His research focuses on spinal biomechanics and surgical outcomes. He has co-authored over 265 peer-reviewed manuscripts and numerous book chapters. Dr. Bydon has made significant contributions to the understanding of optimal surgical management for conditions such as spinal synovial cysts, cervical myelopathy, lumbar spondylolisthesis, ossified posterior longitudinal ligament, cervical degenerative disorders, cervical myelopathy, thoracic myelopathy and metastatic diseases to the spine, among others. Dr. Bydon has presented at more than 200 national and international scientific meetings, underscoring his commitment to advancing knowledge in the field. An educator who has trained over 75 practicing neurosurgeons, Dr. Bydon has received prestigious accolades, including the Richard Otenasak Faculty Teaching Award and the Chairman’s Neurosurgical Teacher of the Year Award. His leadership roles have included serving on the residency review committee and the patient access committee at Johns Hopkins, as well as a yearlong term as the neurosurgical representative on the Johns Hopkins Faculty Senate. He has also served as a medical director with Johns Hopkins Medicine International, overseeing clinical and educational activities at renowned institutions in Lebanon and Brazil. Dr. Bydon has performed more than 5,000 surgeries. His commitment to excellence in patient care, education and research makes him a leading authority in spine surgery, dedicated to providing transformative care to patients seeking relief and recovery. Dr. Bydon is rated as a Distinguished provider by MediFind in Laminectomy. His top areas of expertise are Spondylolisthesis, Spinal Stenosis, Invertebral Disc Disease, Laminectomy, and Spinal Fusion.

Faheem Sandhu is a Neurosurgery provider in Chevy Chase, Maryland. Dr. Sandhu is rated as a Distinguished provider by MediFind in Laminectomy. His top areas of expertise are Spinal Stenosis, Spondylolisthesis, Epidural Hematoma, Laminectomy, and Cervical Disc Surgery. Dr. Sandhu is currently accepting new patients.

Dr. Timothy Witham is a professor of neurological surgery and orthopaedic surgery at the Johns Hopkins University School of Medicine. His interests include the surgical treatment of degenerative conditions of the cervical and lumbar spine, including instrumented fusion procedures. He also has an expertise in the treatment of spinal tumors, spinal trauma and spinal deformity. Dr. Witham serves as director of the Johns Hopkins Neurosurgery Spinal Fusion Laboratory, director of Johns Hopkins Bayview Medical Center's Spine Program and co-program director of the Johns Hopkins Neurosurgery Residency Program. Dr. Witham received his B.S. in biochemistry from the Pennsylvania State University. He earned his M.D. from the Johns Hopkins University School of Medicine. He completed his residency at the University of Pittsburgh Medical Center. He performed a fellowship in spinal neurosurgery at Johns Hopkins. Dr. Witham joined the Johns Hopkins faculty in 2005. Prior to joining Johns Hopkins, Dr. Witham was chief neurosurgeon at Keesler Medical Center at Keesler Air Force Base in Biloxi, Mississippi. Dr. Witham's research interests include finding novel ways to achieve spinal fusion and improving surgical techniques in the aging spine. A co-author of more than 170 peer-reviewed articles and abstracts, Dr. Witham has been featured as a “Top Doctor” in Baltimore magazine and was a recipient of a United States Air Force meritorious service medal in 2005. He is a member of various professional organizations, including the American College of Surgeons and American Association of Neurological Surgeons. Dr. Witham is rated as a Distinguished provider by MediFind in Laminectomy. His top areas of expertise are Spinal Stenosis, Bone Tumor, Epidural Abscess, Spinal Fusion, and Laminectomy.