Dr. Charlotte Sumner is a Professor of Neurology and Neuroscience at Johns Hopkins University School of Medicine. Dr. Sumner cares for patients with genetically-mediated neuromuscular diseases. Her practice is notable for a focus on individuals with inherited neuromuscular disorders of peripheral nerves and motor neurons, including spinal muscular atrophy (SMA) and Charcot-Marie-Tooth (CMT) disease. She co-directs the Johns Hopkins Muscular Dystrophy Association Care Center, the Spinal Muscular Atrophy (SMA), and the Charcot-Marie-Tooth (CMT) clinics, which deliver multidisciplinary clinical care, engage in international natural history studies, and provide cutting edge therapeutics. Dr. Sumner’s research focuses on developing treatments for degenerative disorders of motor neurons and peripheral nerves. Her laboratory uses human tissues and induced pluripotent cell lines, mouse models and cultured cells to characterize disease mechanisms and develop treatments. Dr. Charlotte Sumner received her medical degree from the University of Pennsylvania School of Medicine following undergraduate studies at Princeton University. She completed internal medicine internship and neurology residency at the University of California San Francisco, after which she returned to the east coast for a neuromuscular fellowship at Johns Hopkins and a neurogenetics fellowship in the Neurogenetics Branch at the National Institute of Neurological Disorders and Stroke. She joined the neurology faculty at Johns Hopkins in 2006. Dr. Sumner is rated as an Advanced provider by MediFind in the treatment of X-Linked Infantile Spinal Muscular Atrophy. Her top areas of expertise are Spinal Muscular Atrophy (SMA), Charcot-Marie-Tooth Disease, Primary Lateral Sclerosis, Spinal Muscular Atrophy Type 2, and Gastrostomy.

Dr. Tom Crawford has been a member of the Department of Neurology since 1987. He is co-director of the MDA clinic for Neuromuscular Disorders and Neurologist for the Ataxia Telangiectasia Clinical Center at Johns Hopkins. His practice involves general child neurology with a principal interest in caring for children with neuromuscular, neuromotor, and ataxic disorders. Primary research interests involve the basic science and clinical characterization of two important neurologic disorders that affect children: Spinal Muscular Atrophy and Ataxia Telangiectasia. He is also actively involved in the Biology of neurofilaments by characterization of transgenic animal models. He is on the Medical and Scientific Advisory Boards of Families of Spinal Muscular Atrophy, and the Medical Advisory Committee for the Muscular Dystrophy Association. He is the Neurologist for the Ataxia Telangiectasia Clinical Center at Johns Hopkins, which has evaluated almost half of the known patients with this disorder in the United States. Additional specific clinical interests include evaluation and treatment of children with brachial plexus palsies. Dr. Crawford received his medical degree from the University of Southern California. He completed a pediatric internship and residency at the Pediatric Pavilion of the Los Angeles County / University of Southern California Medical Center, followed by a pediatric chief residency. He completed his training in Neurology with Special Qualification in Child Neurology at the Los Angeles Childrens Hospital. He then traveled east to the laboratory of Dr John Griffin at Johns Hopkins for a fellowship in Neuromuscular Disorders. Prior to medical training and Neurology residency, he majored in Psychology and Religion at Yale College. Dr. Crawford has published extensively and presented nationally and internationally. He has an active role in teaching medical students and residents in neurology. In addition, Dr. Crawford has special interest and experience in EMG studies of children and adults. Dr. Crawford is rated as an Advanced provider by MediFind in the treatment of X-Linked Infantile Spinal Muscular Atrophy. His top areas of expertise are Primary Lateral Sclerosis, Spinal Muscular Atrophy (SMA), Ataxia-Telangiectasia, and Spinal Muscular Atrophy Type 2.

Dr. Leung obtained her undergraduate degree in biochemical sciences from Harvard University. While attending medical school at Duke University, she completed a year-long research fellowship studying genetic markers of late-onset Alzheimer’s disease at the National Institute on Aging as part of the NIH Clinical Research Training Program. She completed her neurology residency and clinical neurophysiology fellowship at Stanford University Medical Center, and is currently a Ph.D. candidate in the graduate training program in clinical investigation at the Johns Hopkins Bloomberg School of Public Health. Dr. Leung joined the Center for Genetic Muscle Disorders at the Kennedy Krieger Institute as a translational research fellow in 2010 and was appointed to the faculty in 2014. Her clinic specializes in electromyography and the diagnosis and treatment of hereditary muscle diseases. Dr. Leung’s research focuses on the development of imaging biomarkers and outcome measures for muscle diseases. She is the principal investigator for a longitudinal cohort study of whole-body MRI in facioscapulohumeral muscular dystrophy. Dr. Leung is also a site principal investigator for the Ionis-DMPKRx trial, a phase Ib/IIa clinical trial of a novel RNA-based therapy for myotonic muscular dystrophy. Dr. Leung is rated as an Experienced provider by MediFind in the treatment of X-Linked Infantile Spinal Muscular Atrophy. Her top areas of expertise are Facioscapulohumeral Muscular Dystrophy (FSHD), Dysferlinopathy, Limb-Girdle Muscular Dystrophy Type 2I, and Limb-Girdle Muscular Dystrophy.

Kathryn Wagner is a Neurologist in Baltimore, Maryland. Dr. Wagner is rated as an Experienced provider by MediFind in the treatment of X-Linked Infantile Spinal Muscular Atrophy. Her top areas of expertise are Limb-Girdle Muscular Dystrophy, Limb-Girdle Muscular Dystrophy Type 1B, Limb-Girdle Muscular Dystrophy Type 1A, and Limb-Girdle Muscular Dystrophy Type 2I.