My mission, along with the St. Joseph Medical Group, is to focus on innovative clinical care and the pursuit of excellence through scholarly activities. This allows me to provide patients with state-of-the-art patient services and exceptional patient experiences. Dr. Ladha is highly rated in 24 conditions, according to our data. His top areas of expertise are Pompe Disease, Amyotrophic Lateral Sclerosis (ALS or Lou Gehrig's Disease), Primary Lateral Sclerosis, and Spinal Muscular Atrophy (SMA).

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.

Loutfi Aboussouan is a Neuromusculoskeletal Medicine provider in Cleveland, Ohio. Dr. Aboussouan has been practicing medicine for over 45 years is highly rated in 15 conditions, according to our data. His top areas of expertise are Obstructive Sleep Apnea, Obesity Hypoventilation Syndrome (OHS), Chronic Obstructive Pulmonary Disease (COPD), Emphysema, and Thymectomy.

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, Dermatomyositis, Polymyositis, and Necrotizing Myopathy (NM).

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).

Benjamin Claytor is a Neuromusculoskeletal Medicine provider in Cleveland, Ohio. Dr. Claytor is highly rated in 17 conditions, according to our data. His top areas of expertise are Myasthenia Gravis, Guillain-Barre Syndrome, Chronic Polyradiculoneuritis, and Miller-Fisher Syndrome.

David Lacomis, MD, is a neurologist and is certified in neurology, clinical neurophysiology, and neuromusculoskeletal medicine by the American Board of Psychiatry and Neurology. He is chief of the Division of Neuromuscular Diseases and director of clinical research for the Live Like Lou Center of ALS Research. He is also a professor of Neurology and Pathology at the University of Pittsburgh School of Medicine. He received his medical degree from Penn State College of Medicine and completed his residency at Brigham and Women’s Hospital, followed by his fellowship at the University of Massachusetts Medical Center. Dr. Lacomis is highly rated in 16 conditions, according to our data. His top areas of expertise are Amyotrophic Lateral Sclerosis (ALS or Lou Gehrig's Disease), Myasthenia Gravis, Primary Lateral Sclerosis, Lambert-Eaton Syndrome, and Thymectomy.

Rocio Santibanez is a Neuromusculoskeletal Medicine provider in Atlanta, Georgia. Dr. Santibanez has been practicing medicine for over 17 years is highly rated in 15 conditions, according to our data. Her top areas of expertise are Amyotrophic Lateral Sclerosis (ALS or Lou Gehrig's Disease), Chronic Inflammatory Demyelinating Polyneuropathy, Myasthenia Gravis, and Peripheral Neuropathy.

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).

Danielle Richards is a Neuromusculoskeletal Medicine provider in Cleveland, Ohio. Dr. Richards has been practicing medicine for over 18 years is highly rated in 10 conditions, according to our data. Her 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.

Jonathan Glass is a Neuromusculoskeletal Medicine provider in Atlanta, Georgia. Dr. Glass has been practicing medicine for over 41 years is highly rated in 8 conditions, according to our data. His top areas of expertise are Amyotrophic Lateral Sclerosis (ALS or Lou Gehrig's Disease), Primary Lateral Sclerosis, Spinal Muscular Atrophy (SMA), Spinal and Bulbar Muscular Atrophy, and Gastrostomy.

Paula Clemens, MD, is a neurologist certified by the American Board of Psychiatry and Neurology. She is chief of the Division of Veterans Affairs and a professor of Neurology, Molecular Genetics and Biochemistry, Human Genetics, and Pediatrics at the University of Pittsburgh School of Medicine. She received her medical degree from the Medical College of Pennsylvania and completed her residency at Dartmouth-Hitchcock Medical Center, followed by a neuromuscular fellowship at Mayo Clinic and a molecular genetics fellowship at Baylor College of Medicine. Dr. Clemens is highly rated in 7 conditions, according to our data. Her top areas of expertise are Duchenne Muscular Dystrophy, Becker Muscular Dystrophy, Pompe Disease, and Myotonic Dystrophy.

I am a member of AANEM (American Association of Neuromuscular & Electrodiagnostic Medicine)I enjoy hiking, reading and practicing speaking Spanish. Dr. Chrisman is highly rated in 7 conditions, according to our data. Her top areas of expertise are Spinal Muscular Atrophy Type 2, Spinal Muscular Atrophy with Arthrogryposis, X-Linked Infantile Spinal Muscular Atrophy, and Spinal Muscular Atrophy Type 3.

My mission, along with the Dignity Health Medical Group, is to focus on innovative clinical care and the pursuit of excellence through scholarly activities. This allows me to provide patients with state-of-the-art patient services and exceptional patient experiences. Dr. Shefner is highly rated in 6 conditions, according to our data. His top areas of expertise are Amyotrophic Lateral Sclerosis (ALS or Lou Gehrig's Disease), Primary Lateral Sclerosis, Spinal Muscular Atrophy (SMA), Spinal Muscular Atrophy Type 3, and Gastrostomy.

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.

Cory Kogelschatz is a Neuromusculoskeletal Medicine specialist and a Neurologist in Murray, Utah. Dr. Kogelschatz has been practicing medicine for over 14 years is highly rated in 6 conditions, according to our data. His top areas of expertise are Chronic Inflammatory Demyelinating Polyneuropathy, Peripheral Neuropathy, Myasthenia Gravis, and Miller-Fisher Syndrome.

Christina Fournier is a Neuromusculoskeletal Medicine provider in Atlanta, Georgia. Dr. Fournier has been practicing medicine for over 19 years is highly rated in 5 conditions, according to our data. Her top areas of expertise are Amyotrophic Lateral Sclerosis (ALS or Lou Gehrig's Disease), Primary Lateral Sclerosis, Spinal Muscular Atrophy (SMA), Spinal and Bulbar Muscular Atrophy, and Gastrostomy.

Eduardo Cortez is a Neuromusculoskeletal Medicine provider in Greenville, South Carolina. Dr. Cortez is highly rated in 2 conditions, according to our data. His top areas of expertise are Myasthenia Gravis, Chronic Inflammatory Demyelinating Polyneuropathy, Spinal and Bulbar Muscular Atrophy, Spinal Muscular Atrophy Type 3, and Gastrostomy. Dr. Cortez is currently accepting new patients.

Peter Barcas is a Neuromusculoskeletal Medicine provider in Neptune, New Jersey. Dr. Barcas is highly rated in 10 conditions, according to our data. His top areas of expertise are Seizures, Memory Loss, Cerebellar Degeneration, and Generalized Tonic-Clonic Seizure.

My clinical interests are to care for patients with ALS, muscular dystrophy, autoimmune neuropathies and myasthenia gravis. I provide evaluation and ongoing care to persons with these specialized problems. I also perform EMG/NCS studies for nerve and muscle conditions. In addition, I teach medical students, residents and fellows at the University of Arizona College of Medicine. Dr. Horak is highly rated in 55 conditions, according to our data. Her top areas of expertise are Multifocal Motor Neuropathy, Chronic Inflammatory Demyelinating Polyneuropathy, Myasthenia Gravis, and Spinal Muscular Atrophy (SMA).

Rebecca Kuenzler is a Neuromusculoskeletal Medicine provider in Cleveland, Ohio. Dr. Kuenzler has been practicing medicine for over 32 years is highly rated in 54 conditions, according to our data. Her top areas of expertise are Amyotrophic Lateral Sclerosis (ALS or Lou Gehrig's Disease), Spinal Muscular Atrophy Type 3, Spinal Muscular Atrophy (SMA), and Spinal and Bulbar Muscular Atrophy.

Sushanth Bhat is a Neuromusculoskeletal Medicine provider in Edison, New Jersey. Dr. Bhat is highly rated in 2 conditions, according to our data. His top areas of expertise are Obstructive Sleep Apnea, Seizures, Epilepsy, and Generalized Tonic-Clonic Seizure.

My mission, along with the St. Joseph Medical Group, is to focus on innovative clinical care and the pursuit of excellence through scholarly activities. This allows me to provide patients with state-of-the-art patient services and exceptional patient experiences. Dr. Ortega is highly rated in 51 conditions, according to our data. His top areas of expertise are Myasthenia Gravis, Chronic Polyradiculoneuritis, Dysferlinopathy, and Guillain-Barre Syndrome.

John Juhl is a Neuromusculoskeletal Medicine provider in New York, New York. Dr. Juhl is highly rated in 1 condition, according to our data. His top areas of expertise are Costochondritis, Pelvic Floor Dysfunction, Bursitis, and Adolescent Idiopathic Scoliosis.