Dr. Jean-marc M. Voyadzis

Mari Groves is a Johns Hopkins pediatric neurosurgeon who cares for children with brain and spinal cord tumors (benign and cancerous), skeletal dysplasia, and spinal deformities such as neuromuscular and early scoliosis. She also sees patients diagnosed with Chiari malformations, spasticity and epilepsy. She specializes in treating patients with all types of spina bifida, including myelomeningocele. As part of the Johns Hopkins Center for Fetal Therapy, she is an expert in prenatal closure techniques such as minimally invasive fetoscopic repair of myelomeningocele (when the spina bifida defect is repaired before birth). Offering a transitional practice model of care, she follows patients diagnosed with spina bifida from birth to adulthood. Dr. Groves chose to pursue neurosurgery because it allows her to treat patients with complex conditions and help improve the quality of children’s lives. Her research interests focus on pediatric spinal disease and how surgical intervention can impact growth and neurological function during a child’s life. She is committed to building programs that support patients with congenital disorders as they age. Pediatric patients often age out of existing programs and have difficulty locating physicians and treating teams that understand their conditions. At Johns Hopkins, we have a unique ability to provide this type of comprehensive care. Dr. Groves earned her medical degree from the Vanderbilt University School of Medicine in 2007. She completed residency training in 2014 at The Johns Hopkins Hospital, where she remained for a neurosurgery fellowship, which she finished in 2015. She also completed a spinal deformity fellowship at Shriners Hospitals for Children in Philadelphia. Dr. Groves is rated as a Distinguished provider by MediFind in the treatment of Spinal Tumor. Her top areas of expertise are Spinal Tumor, Myelomeningocele, Tethered Cord Syndrome, Osteotomy, and Laminectomy.

Daniel Lubelski is a fellowship-trained neurosurgeon with expertise in complex spine surgery and peripheral nerve surgery. He treats patients with spinal diseases and deformities, spine and nerve tumors, and brachial plexus injuries and other peripheral nerve injuries. Dr. Lubelski’s training in complex and robotic spine surgery, spinal oncology and peripheral nerve injuries allows him to comprehensively evaluate patients and develop custom treatment plans to address symptoms and improve patients’ quality of life. He prioritizes patient-centered care, effective communication and working in multidisciplinary collaboration to identify the best treatment. After obtaining his undergraduate degree at the City University of New York, Dr. Lubelski spent a year doing predoctoral research at the National Institutes of Health. He then obtained his medical degree from the Cleveland Clinic Lerner College of Medicine, and he performed stem cell tumor research as a Howard Hughes Medical Institute fellow. Dr. Lubelski went on to the Johns Hopkins University School of Medicine for a neurosurgery residency and an enfolded fellowship in peripheral nerve surgery. His postdoctoral training also included a fellowship in complex spine surgery and spinal oncology at Johns Hopkins, as well as a traveling fellowship with advanced training at the Memorial Sloan Kettering Cancer Center and MD Anderson Cancer Center. Dr. Lubelski is a prolific researcher who focuses on patient quality of life and on using big data to develop individualized prediction models to determine optimal treatments tailored to each person. He has authored more than 200 peer-reviewed papers and numerous textbook chapters, has lectured nationally and internationally, and serves as a reviewer for the top neurosurgical journals. Dr. Lubelski is rated as a Distinguished provider by MediFind in the treatment of Spinal Tumor. His top areas of expertise are Spinal Tumor, Chordoma, Spinal Stenosis, Spinal Fusion, and Laminectomy.

Nicholas Theodore is a Neurosurgery provider in Baltimore, Maryland. Dr. Theodore is rated as a Distinguished provider by MediFind in the treatment of Spinal Tumor. His top areas of expertise are Tethered Cord Syndrome, Spinal Tumor, Spinal Stenosis, Laminectomy, and Spinal Fusion. Dr. Theodore is currently accepting new patients.