Andrew Mammen is a Neuromusculoskeletal Medicine specialist and a Neurologist in Baltimore, Maryland. Dr. Mammen is highly rated in 10 conditions, according to our data. His top areas of expertise are Myositis, Polymyositis, Dermatomyositis, and Necrotizing Myopathy (NM).

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 highly rated in 23 conditions, according to our data. Her top areas of expertise are Spinal Muscular Atrophy (SMA), Charcot-Marie-Tooth Disease, Primary Lateral Sclerosis, Spinal Muscular Atrophy Type 2, and Gastrostomy.

Nicholas Maragakis treats patients with motor neuron diseases, such as amyotrophic lateral sclerosis (ALS). This care is coordinated with the Johns Hopkins Center for ALS Specialty Care, a multidisciplinary clinic with expertise in treating patients with ALS and providing support to their caregivers. He serves as medical director of the ALS Clinical Trials Unit, an extension of the multidisciplinary clinic that seeks to facilitate opportunities for patients with ALS to participate in clinical trials that could advance the treatment of this disease. Dr. Maragakis is interested in the basic science of understanding neurodegenerative diseases, as well as the translational potential of therapeutic compounds developed in the laboratory. His fundamental research interest is in using stem cells — more specifically, stem cell-derived motor neurons and glia — for understanding the development and propagation of ALS. His laboratory has been involved in creating and characterizing lines of stem cells from patients with ALS using induced pluripotent stem cell (iPSC) methodologies. The laboratory has a large library of iPSCs from patients with familial ALS and from patients with sporadic ALS. The utilization of this library of iPSCs has facilitated the development of a spinal cord-specific iPSC-astrocyte/motor neuron co-culture system, which has been leveraged for the development of assays that can be used for both the basic understanding of ALS astrocyte and motor neuron biology as well as, eventually, drug screening for ALS therapeutics. His laboratory has taken its long-standing interests in astrocyte biology, as it relates to ALS, to develop a program that investigates astrocyte-specific mechanisms as contributors to the progression (both temporally and anatomically) of disease in ALS. In this vein, there is an interest in astrocytic glutamate transporters and, more recently, astrocyte hemichannels and gap junctions. Dr. Maragakis is highly rated in 7 conditions, according to our data. His top areas of expertise are Amyotrophic Lateral Sclerosis (ALS or Lou Gehrig's Disease), Primary Lateral Sclerosis, 15q11.2 Microdeletion, and Spinal Muscular Atrophy (SMA).

Arens Taga is a neurologist specializing in neuromuscular diseases, with a particular focus on amyotrophic lateral sclerosis (ALS) and other motor neuron diseases. His clinical work aims to improve the quality of care for patients with ALS through biomarker-based, precision medicine approaches that refine disease stratification and facilitate more targeted and efficient enrollment in clinical trials. As a clinician-scientist, Dr. Taga uses patient-derived induced pluripotent stem cells to model ALS, uncover novel disease mechanisms and identify therapeutic targets that are translatable to clinical trials. In recognition of his work in ALS, Dr. Taga was awarded the 2025 Richard Olney Clinician Scientist Development Award, which honors early-career physician-scientists dedicated to advancing ALS research. Dr. Taga earned his medical degree from the School of Medicine and Surgery at the University of Parma, Italy, where he also completed his neurology residency. He subsequently trained at The Johns Hopkins University, completing a postdoctoral research fellowship in the neuromuscular division, an internal medicine internship, a neurology residency and a neuromuscular clinical fellowship. Dr. Taga is highly rated in 6 conditions, according to our data. His top areas of expertise are 15q11.2 Microdeletion, Primary Lateral Sclerosis, Amyotrophic Lateral Sclerosis (ALS or Lou Gehrig's Disease), and Cluster Headache.

Dr. Ricardo Roda earned a combined MD/PhD degree from University of Rochester and completed an adult neurology residency, followed by a clinical neuromuscular fellowship at Johns Hopkins University School of Medicine. During residency, Dr. Roda developed a special interest in both auto-immune disorders and genetic disorders. Following residency, he spent three years in neurogenetics branch of National Institute of Neurological Disorders and Stroke (NINDS) working with Dr. Craig Blackstone, focusing on the use of the newer DNA sequencing techniques in genetic diagnosis, and in establishing genotype/phenotype correlations neuromuscular disorders. His current clinical interests include developing testing strategies for undiagnosed genetic disorders and myasthenia gravis. Dr. Roda is highly rated in 21 conditions, according to our data. His top areas of expertise are Spastic Paraplegia Type 7, Hereditary Spastic Paraparesis, Myasthenia Gravis, and Spastic Paraplegia Type 2.

Shahid Rafiq is a Neuromusculoskeletal Medicine specialist and a Neurologist in Silver Spring, Maryland. Dr. Rafiq is highly rated in 18 conditions, according to our data. His top areas of expertise are Transient Ischemic Attack (TIA), Seizures, Stroke, Migraine, and Thrombectomy. Dr. Rafiq is currently accepting new patients.

Dr. Brett Morrison specializes in neuromuscular disorders in adults including peripheral neuropathies, amyotrophic lateral sclerosis, myasthenia gravis and muscle diseases. Dr. Morrison is currently the site principal investigator for clinical trials investigating new treatments for chronic inflammatory demyelinating polyneuropathy (CIDP) and painful diabetic peripheral neuropathy. Dr. Morrison's research interests include investigations into the mechanisms of nerve regeneration and common peripheral neuropathies. Current research focuses on better understanding the role of the immune system in peripheral nerves and targeting these pathways for the development of new treatments. Dr. Brett Morrison received his M.D. and Ph.D. from Mount Sinai Medical School in New York City. He completed his medical internship at the University of Maryland and residency in neurology at The Johns Hopkins Hospital. He then completed a fellowship in Clinical Neurophysiology at The Johns Hopkins Hospital. Dr. Morrison is highly rated in 10 conditions, according to our data. His top areas of expertise are Amyotrophic Lateral Sclerosis (ALS or Lou Gehrig's Disease), Spinal and Bulbar Muscular Atrophy, Spinal Muscular Atrophy Type 3, and Spinal Muscular Atrophy (SMA).

Neurologist Payam Mohassel specializes in myopathies, muscular dystrophies, and other hereditary neuromuscular disorders and is the co-director of the Johns Hopkins Myositis Center. Dr. Mohassel obtained his medical degree from the Johns Hopkins University School of Medicine, where he remained for a medical internship, residency training in neurology, and clinical fellowship training in neuromuscular medicine. He then joined the National Institute of Neurological Disorders and Stroke Neurogenetics branch as a clinical research fellow. Dr. Mohassel’s research focuses on translational studies on neuromuscular disorders, and it spans gene discovery efforts, mechanistic studies to identify therapeutic targets, and early phase interventional clinical trials. Dr. Mohassel is highly rated in 10 conditions, according to our data. His top areas of expertise are Amyotrophic Lateral Sclerosis (ALS or Lou Gehrig's Disease), Primary Lateral Sclerosis, Hereditary Sensory Neuropathy Type 1 (HSN1), and Hereditary Sensory and Autonomic Neuropathy Type 2.

Sashidhar Movva is a Neuromusculoskeletal Medicine specialist and a Neurologist in Greenbelt, Maryland. Dr. Movva is highly rated in 8 conditions, according to our data. His top areas of expertise are Seizures, Generalized Tonic-Clonic Seizure, Peripheral Neuropathy, and Sciatica. Dr. Movva is currently accepting new patients.

Dr. Jeffrey Rothstein focuses on neuromuscular diseases, with a particular focus on Amyotrophic lateral sclerosis (ALS). Other clinical areas relevant to his laboratory-based research include idiopathic stupor, epilepsy, and motor neuron degeneration. His laboratory includes more than 25 post-doctoral fellows, neurology residents, neuromuscular fellows, junior faculty, undergraduate students, technicians, and ALS clinic staff. He has been the principal and/or local investigator in more than 20 national or international trials in ALS. He is the author of more than 360 articles on basic and clinical neuroscience. Dr. Rothstein's laboratory research is funded through the National Institutes of Health, the Dept of Defense, Target ALS, Maryland TEDCO, Alzheimer's Drug Discovery Foundation, the Muscular Dystrophy Association, the ALS Association, and Answer ALS. Dr. Jeffrey Rothstein received a masters degree in neurochemistry from the University of Chicago and a Ph.D. in physiology and biophysics from the University of Illinois Health Sciences Center. He then obtained his medical degree from the University of Illinois College of Medicine. He went on to complete an internship at the University of North Carolina Memorial Hospital before joining The Johns Hopkins for his residency. While at Johns Hopkins, he became chief resident in neurology and completed his fellowship in neuromuscular disease. He has been Professor of Neurology and Neuroscience at Johns Hopkins for more than 25 years. Dr. Rothstein is highly rated in 4 conditions, according to our data. His top areas of expertise are Amyotrophic Lateral Sclerosis (ALS or Lou Gehrig's Disease), Spinal Muscular Atrophy (SMA), Spinal and Bulbar Muscular Atrophy, and Spinal Muscular Atrophy Type 3.

Dr. Bipasha Mukherjee-Clavin is an Assistant Professor of Neurology in the Johns Hopkins University School of Medicine. She cares for patients with neuromuscular disorders, with a special focus on patients with peripheral neuropathy, immune-mediated neuropathy, and inherited neuropathy (also known as Charcot-Marie-Tooth disease). She sees patients in the Johns Hopkins Peripheral Nerve and multidisciplinary Charcot-Marie-Tooth clinics, and performs electromyography in the Johns Hopkins EMG lab. As a stem cell biology-trained scientist, Dr. Mukherjee-Clavin's research is focused on the use of patient-derived induced pluripotent stem cells to model genetic Schwann cell and peripheral nerve disorders to undercover novel pathways and potential treatments. During her PhD she published one of the first studies of CMT1A using patient derived stem cells (Comparison of three congruent patient-specific cells types for the modelling of a human genetic Schwann-cell disorder. Nature Biomedical Engineering. volume 3, pages 571–582 (2019)). In 2022, she was awarded the Passano award, given to a promising early career physician-scientist in the Johns Hopkins University School of Medicine. Dr. Mukherjee-Clavin completed her undergraduate studies at the University of California, Berkeley. She then completed her MD/PhD degrees, Neurology residency, and clinical Neuromuscular fellowship in the Johns Hopkins University School of Medicine. She joined the Johns Hopkins Neurology faculty in 2022. Dr. Mukherjee is highly rated in 4 conditions, according to our data. Her top areas of expertise are Charcot-Marie-Tooth Disease, Guillain-Barre Syndrome, Chronic Polyradiculoneuritis, and Miller-Fisher Syndrome.

Abdullah AlQahtani specializes in inherited and noninherited neuromuscular neurological diseases. Dr. AlQahtani obtained his medical degree from the King Saud University in Saudi Arabia. He also completed an internship and earned a master’s degree in public health from the University of Miami Miller School of Medicine, and he obtained residency training in neurology at the University Hospitals of Cleveland-Case Western Reserve University and the Louis Stokes Cleveland Department of Veterans Affairs Medical Center. After completing a neuromuscular fellowship at Case Western Reserve University, Dr. AlQahtani joined the neurogenetics branch of the National Institute of Neurological Disorders and Stroke. He worked on natural history studies of disease progression and phenotype-genotype correlation. His research focuses on the identification of biomarkers of disease progression in neuromuscular diseases. Dr. Alqahtani is highly rated in 2 conditions, according to our data. His top areas of expertise are Spinal and Bulbar Muscular Atrophy, Primary Lateral Sclerosis, and Spinal Muscular Atrophy (SMA).

Heather Peirce is a Neuromusculoskeletal Medicine provider in Cumberland, Maryland. Dr. Peirce is highly rated in 2 conditions, according to our data. Her top areas of expertise are Vitamin D Deficiency, Secondary Adrenal Insufficiency, Rathke Cleft Cyst, and Sheehan Syndrome.

Dr. Jessica Nance, treats pediatric patients with neuromuscular disorders, muscular dystrophies, congenital and metabolic myopathies, Charcot-Marie-Tooth (CMT) disease, peripheral neuropathy, spinal muscular atrophy, pediatric brachial plexus and hypotonia. She has cultivated expertise in the diagnosis and management of inherited neuromuscular diseases through her experience at he National Institutes of Health with Dr. Carsten Bonnemann and in the Johns Hopkins Pediatric Neuromuscular Clinic with Dr. Tom Crawford. After completing a fellowship in neuromuscular disorders at Johns Hopkins, she is now a part of the Johns Hopkins Division of Pediatric Neurology where she will continue working in the Pediatric Neuromuscular Clinic with Dr. Crawford. She received her medical degree from Indiana University School of Medicine and completed residency training in Pediatrics and Child Neurology at Children’s National Medical Center in Washington, D.C. Dr. Nance is highly rated in 2 conditions, according to our data. Her top areas of expertise are Duchenne Muscular Dystrophy, Dysferlinopathy, Cytoplasmic Body Myopathy, and Cramp-Fasciculation Syndrome.

Nihir Shah is a Neuromusculoskeletal Medicine provider in Silver Spring, Maryland. Dr. Shah is highly rated in 1 condition, according to our data. His top areas of expertise are Mast Cell Activation Syndrome (MCAS) and Pelvic Floor Dysfunction.

Jasmine Toor is a Neuromusculoskeletal Medicine provider in Baltimore, Maryland. Her top area of expertise is Plaque Psoriasis. Dr. Toor is currently accepting new patients.

Andrew Tucker is a Neuromusculoskeletal Medicine specialist and a Sports Medicine provider in Lutherville, Maryland. His top areas of expertise are Tendinitis and Bursitis. Dr. Tucker is currently accepting new patients.

Patricia Grimm is a Neuromusculoskeletal Medicine provider in Baltimore, Maryland.

Edward Edris is a Neuromusculoskeletal Medicine provider in Silver Spring, Maryland.

Darren Mcauley is a Neuromusculoskeletal Medicine specialist and an Addiction Medicine provider in Elkton, Maryland.

Stephen Fahey is a Neuromusculoskeletal Medicine provider in College Park, Maryland.

Bruce Henn is a Neuromusculoskeletal Medicine provider in Towson, Maryland.

David Risov is a Neuromusculoskeletal Medicine specialist and a Physiatrist in Silver Spring, Maryland.

Amy Iadarola is a Neuromusculoskeletal Medicine provider in Silver Spring, Maryland.

Katherine Scoville is a Neuromusculoskeletal Medicine provider in Potomac, Maryland.