Spine Leaders

Jack E. Zigler, MD, is the medical director of Plano-based Texas Back Institute. He is also the co-director of the spine fellowship program at the institute and has previously been a clinical professor of orthopedic surgery at University of California…

Daryl R. Sybert, DO, is a partner at Columbus, Ohio-based OrthoNeuro, having joined the group in 1994. He is also an associate clinical professor in orthopedics at Ohio University Heritage College of Osteopathic Medicine in Athens and The Ohio State…

Mark Gardon, MD, is neurosurgeon at BayCare Clinic in Aurora BayCare Medical Center in Green Bay, Wis. He is a fellow of the American College of Surgeons and is a member of the American Association of Neurological Surgeons, Rocky Mountain…

George A. Frey, MD, is an orthopedic spine surgeon and founder of the Colorado Comprehensive Spine Institute in Englewood. He has served as an associate clinical professor at the University of Colorado Health Sciences, where he served as chief of…

Ziya Gokaslan, MD, is the neurosurgical spine center and vice-chairman of neurosurgery at Johns Hopkins Hospital in Baltimore. He is a member of Cervical Spine Research Society, American Society of Clinical Oncology and America Association of Neurological Surgeons. He has…

Anthony Frempong-Boadu, MD, is an associate professor of neurosurgery and director of the Division of Spinal Neurosurgery at New York University Langone Medical Center. He is also the director of the neurosurgery spine fellowship program and he maintains a minimally…

Kevin Foley, MD, serves as director of complex spine surgery at Memphis, Tenn.-based Semmes-Murphey Neurologic & Spine Institute. He is also a professor of neurosurgery at the University of Tennessee Health Science Center in Memphis and director of the University's…

Glenn L. Keiper, MD, is a neurosurgeon, and he founded KeiperSpine in Eugene, Ore. He also opened the Spine Surgery Center of Eugene in 2007 along with other associates, which is a spinal surgery-driven ASC. He is a member of…

Darrel S. Brodke, MD, is the vice chairman of the department of orthopedics at the University of Utah School of Medicine in Salt Lake City. He holds the Louis and Janet Peery Presidential Endowed Chair and also serves as the…

John Fickenberg, MD, practices with La Mesa, Calif.-based Alvarado/Helix Orthopaedics and Sports Medicine and serves as the acting director of the Spine Center at Alvarado Hospital Medical Center in San Diego. He is the past chief of orthopedic surgery at…