Douglas Arnold, MD is a Professor in the Department of Neurology and Neurosurgery at McGill University, Director of the Magnetic Resonance Spectroscopy Unit in the Brain Imaging Center at the Montreal Neurological Institute, and President of NeuroRx Research, a CNS imaging CRO. He has special expertise in advanced MRI acquisition and analysis techniques, particularly as they relate to understanding the evolution of multiple sclerosis and the measurement of markers of inflammation, remyelination and neuroprotection.

Director of the Experimental Therapeutics Program and the Clinical Neuroimmunology Fellowship at the Mellen Center for Multiple Sclerosis Treatment and Research at the Cleveland Clinic.

In addition to his large clinical practice devoted primarily to the care of patients with multiple sclerosis (MS) and related disorders, Dr. Cohen has been involved in a large number of clinical trials investigating potential new therapies for MS. A world-renowned expert on MS, Dr. Cohen has served on a large number of grant review committees, advisory groups, and national and international task forces.

Dr. Michael Levy, MD, PhD, is an Assistant Professor of Neurology at the Johns Hopkins University and Director of the Neuromyelitis Optica Clinic.

Dr. Levy specializes in caring for patients with rare neuroimmunologic diseases including neuromyelitis optica, transverse myelitis and recurrent optic neuritis. In addition to four monthly clinics, Dr. Levy is the Principal Investigator on several clinical studies and drug trials for these conditions.

Upon completing the MD/PhD program at Baylor College of Medicine (Houston, TX) with a focus on neuroscience, Dr. Levy came to Johns Hopkins in 2004 for a 1-year internship in the Osler Medicine program followed by a 3 year residency in the Hopkins neurology program and a 2 year fellowship in Neuroimmunology. In 2009, Dr. Levy was appointed to the faculty as Assistant Professor.