Our Neurosurgeons

With 12 neurosurgeons practicing together in one group, Neurosurgical Associates is one of the largest neurosurgical practices in the state of Tennessee.

Click a physician below to learn more:

William E. Snyder, Jr.

Richard P. Boyer

Todd B. Abel

James A. Killeffer

Kent L. Sauter

David H. Hauge

Joel B. Ragland

Christopher P. Gallati

Jennifer G. Savage

Jonathan York


William E. Snyder, Jr, MD

Dr. William E. Snyder is a board certified neurosurgeon with special interest in spine surgery, brain tumors, aneurysms and trauma. He earned his medical degree from Indiana University School of Medicine and completed his residency at the Indiana University Hospital. He is an assistant professor with the Graduate School of Medicine.

Dr Snyder’s clinical interests include spine surgery, neuro-oncology and trauma. He is the neurosurgical liaison to the Trauma Center at UT Medical Center and he is the team neurosurgeon for the University of Tennessee at Knoxville Athletic Department.

For the past 12 years Dr. Snyder has served as faculty for the Goodman Neurosurgery Oral Board Preparation Course. This is a highly interactive course that simulates the neurosurgery board examination given by the American Board of Neurological Surgery (ABNS). It is the premier neurosurgical oral board review course with over 90 percent of candidates attending at least once prior to taking the exam.

Dr. Snyder is a member of several professional organizations such as the American Association of Neurological Surgeons, Congress of Neurological Surgery and American College of Surgeons.

www.utmedicalcenter.org/brain-and-spine-institute/

William E. Snyder, Jr., M.D.


Richard P. Boyer, MD

Dr. Richard P. Boyer is a board certified neurosurgeon with special interest in spine surgery and deep brain stimulation. He has been published on these subjects in various publications. Dr. Boyer is associated with University of Tennessee Medical Center, and East Tennessee Children’s Hospital. He is also a clinical instructor at the University of Tennessee Graduate School of Medicine.

Dr. Boyer earned his medical degree from the University of Texas Health Science Center and completed his residency at the University of Missouri, Columbia Hospital and Clinics. As a member of professional organizations such as the American Association of Neurological Surgeons, Congress of Neurological Surgery, Tennessee Medical Association and American Medical Association, Dr. Boyer has given several lectures on presentations on different neurosurgery topics. He also recently served as president of the Tennessee Neurosurgical Society. Dr. Boyer has practiced neurosurgery in Knoxville since 1998.

Richard P. Boyer, M.D.


Todd B. Abel, MD

Dr. Todd B. Abel joined our team in 2005 after serving three years as a neurosurgeon in the US Air Force. He is a board certified neurosurgeon and associated with the University of Tennessee Medical Center and East Tennessee Children’s Hospital. He is also a clinical instructor at the University of Tennessee Graduate School of Medicine.

Dr. Abel earned his medical degree from Loma Linda University and completed his residency at Indiana University. His special interests are in spine surgery and tethered cord syndrome, and has completed research, presentations and published writing on these topics. He is a member of the American Association of Neurological Surgeons and the Congress of Neurological Surgery. Dr. Abel’s military background brings a new perspective to our practice.

www.utmedicalcenter.org/brain-and-spine-institute/

Todd B. Abel, M.D.


James A. Killeffer, MD

Dr. James Killeffer has practiced neurosurgery in Knoxville since 1997. He is Board Certified by the American Board of Neurological Surgery and is a Fellow of the American Association of Neurological Surgeons. He grew up in Knoxville and graduated from the University of Tennessee with Honors in 1987. He completed medical school at the University of Tennessee in Memphis, completed a general surgery internship at the University of Tennessee Graduate School of Medicine, and completed his neurosurgical residency at West Virginia University, where he joined their faculty as an Instructor in Neurosurgery. He returned to Knoxville to join his father in practice at University Neurosurgery, PC.

Dr. Killeffer became a full-time member of the faculty of the University of Tennessee Graduate School of Medicine in 2006. His duties there as Chief of the Division of Neurosurgery and Assistant Professor of Surgery include directing resident and medical student education, and participating in neurosurgery-related research.

He has published articles on numerous topics including cervical spine anatomy, spinal imaging, intracranial subdural hematoma, brain tumors, spinal anomalies, intravenous nutrition, and the socioeconomic aspects neurosurgery. Currently, he is collaborating with members of the Engineering Department at the University of Tennessee and with engineers in the private sector in research involving cerebrospinal fluid flow dynamics and the kinematics of brain trauma. He also is working with engineers to develop implants to improve the treatment of cerebrospinal fluid circulation disorders.

Dr. Killeffer’s clinical practice includes treatment of a broad spectrum of adult neurosurgical problems including brain, spine, and peripheral nerve surgery. Special interests include minimally invasive techniques in brain and spinal surgery, endoscopic pituitary surgery, trigeminal neuralgia and hemi-facial spasm, and surgical neuro-oncology, including brain and spinal stereotactic radiosurgery. He practices at an academic teaching hospital to give his patients access to state-of-the-art comprehensive care of neurosurgical problems.

James A. Killeffer, M.D.


Kent L. Sauter, MD

Dr. Kent Sauter joined University Neurosurgery in 2004. He is a native of Mobile, Alabama, and graduated from the University of South Alabama in 1980. He completed medical school at the University of South Alabama in 1989 where he served as President of AΩA Honor Medical Society. Dr. Sauter subsequently completed his residency in Neurological Surgery in 1995 at the West Virginia University Hospital in Morgantown, West Virginia.

Dr. Sauter was in academic practice at the University of South Alabama Department of Neurosurgery in Mobile from 1995 to 2004, where he served as Assistant Professor of Neurosurgery with a primary focus on spinal trauma. He was selected to join the practice of Drs. Fred and James Killeffer in neurosurgery at Knoxville in 2004. He is Board Certified by the American Board of neurological Surgery and is a Fellow of the American College of Surgeons.

Dr. Sauter has taught medical students and residents the general aspects of neurosurgical diseases and has authored peer-reviewed neurosurgical literature in areas including neuroanatomy, hydrocephalus, spinal implants, subarachnoid hermorrhage, tumors, encephalitis, and functional neurosurgery.

Dr. Sauter’s current practice includes treatment of a broad spectrum of adult neurosurgical problems including brain, spine and peripheral nerve surgery. Special interests include minimally invasive techniques in brain and spinal surgery, complex spinal surgery, radiosurgery, and kyphoplasty for the treatment of osteoporotic compression fractures. He has based his practice at a university teaching hospital to give his patients access to comprehensive multi-disciplinary care of neurosurgical problems.

Dr. Sauter’s interests outside of medicine include amateur radio, photography and flying. He holds an Advanced Class Amateur Radio License and a Private Pilots Certificate. He is active in the amateur radio Hospital Network providing emergency radio communications between hospitals.

www.utmedicalcenter.org/brain-and-spine-institute/

Kent L. Sauter, M.D.


David H. Hauge, MD, FACS, FAANS

Dr. David Hauge has practiced neurosurgery in Knoxville, TN since completing his residency in neurosurgery at the Medical College of Georgia in Augusta, Georgia in July 1990. He completed medical school at West Virginia University School of Medicine in Morgantown, West Virginia after receiving a Master of Science from the Department of Anatomy and Neurobiology at Saint Louis University School of Medicine in St. Louis, Missouri.

Dr. Hauge currently lives in Knoxville with his wife, Sue Ellen. He has two children, Sarah Elizabeth and James Andrew.

Dr. Hauge has a special interest in Gamma Knife Radiosurgery and is the Medical Director of the Fort Sanders Regional Gamma Knife Center at Thompson Cancer Survival Center, Knoxville, TN. He is also a member of the Leksell Gamma Knife Society.

Dr. Hauge is board certified by the American Board of Neurological Surgery. He is a member of the American Association of Neurological Surgeons, the Congress of Neurological Surgeons, The AANS/CNS Joint section on tumors, the American Society of Stereotactic and Functional Neurosurgery, and he is a fellow of the American College of Surgeons.

Dr. David H. Hauge, MD, FACS, FAANS


Joel B. Ragland, MD

Dr. Joel Ragland has a conservative practice style and understands many patients do not need surgery to successfully treat their condition. He strives to educate his patients and discusses all treatment options. While surgery is appropriate, he utilizes the latest technology and information available to give his patients the best opportunity for recovery.

Dr. Ragland has practiced neurosurgery in Knoxville since 1994. He is board certified by the American Board of Neurological Surgery and stays current by participating in their recertification program. This is a rigorous educational and evaluation process requiring continual expansion of current neurosurgical techniques and knowledge. He is also certified in Gamma Knife radiosurgery.

Dr. Ragland attend medical school at the University of Arkansas College of Medicine. He completed his internship and residency at the University of Texas Medical Branch in Galveston, Texas. He is a member of the American Association of Neurological Surgeons, the Congress of Neurological Surgeons, The American Medical Association, The Tennessee Medical Association and the Tennessee Neurosurgical Association.

Joel B. Ragland, M.D.


Christopher P. Gallati, MD

Dr. Christopher Gallati is a board certified neurological surgeon who graduated from Mercer University School of Medicine and completed his residency in neurosurgery at the University of Rochester Medical Center. He is a member of the American Association of Neurological Surgeons and The Congress of Neurological Surgeons. He joined Neurosurgical Associates in August of 2015.

He also holds a Master of Business Administration degree from University of Rochester Simon Graduate School of Business. Dr. Gallati has co-authored articles on neurotrauma and vascular neurosurgery. He has also made several presentations on topics related to vascular neurosurgery and spinal surgery.

Dr. Gallati enjoys practicing the full spectrum of neurosurgery with special interests in spine surgery and brain tumors.

Christopher P. Gallati, M.D.


Jennifer G. Savage, MD

Dr. Jennifer Gentry Savage is a board certified neurological surgeon and is fellowship trained in pediatric neurosurgery. She has joined Neurosurgical Associates in September 2014. Currently, Dr. Savage is associated with East Tennessee Children’s Hospital, University of Tennessee Medical Center.

Dr. Savage earned her medical degree from the University of Texas Health Science Center. She completed her residency at University of Texas Health Science Center and her fellowship at University of Indiana School of Medicine. Dr. Savage’s writing has been published in books, journals, and abstract pieces. She is also a member of the American Association of Neurological Surgeons and Congress of Neurological Surgery. Neurosurgical Associates is proud to have her as a member of our staff.

Jennifer G. Savage, M.D.


Jonathan York, MD

Dr. Jonathan York is a board eligible neurosurgeon with fellowship training in minimally invasive and complex spinal deformity surgery. Dr. York was born and raised in Crossville, TN. After graduating from the University of Tennessee – Knoxville Honors Program Summa Cum Laude, Dr. York attended Wake Forest University School of Medicine. He completed his neurosurgical training at the University of Cincinnati / Mayfield Clinic. Dr. York completed a complex spine fellowship at St. Swedish Medical Center in Seattle, WA. Dr. York is one of the few fellowship trained spinal surgeons with dual neurosurgery and orthopedic backgrounds.

Dr. York believes that his training in spinal deformity has made him a better minimally invasive spine surgeon and vice-versa. His philosophy is to maximize all non-surgical measures first and rehabilitate the whole person. When necessary, he pursues the least invasive option possible that still corrects the pathology. Dr. York also treats brain tumors, spinal tumors, chiari malformations, and peripheral nerve disorders.

Jonathan York, MD

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