Darin T. Okuda, M.D., M.S., F.A.A.N., F.A.N.A.

Dr. Okuda is a clinician-scientist and professor specializing in multiple sclerosis within the Department of Neurology and Neurotherapeutics at UT Southwestern Medical Center in Dallas, Texas.  Dr. Okuda completed his undergraduate, graduate, and medical education at the University of Hawaii.  He received his residency training in neurology at the Barrow Neurological Institute and went on to complete a fellowship in neuroimmunology at the University of California, San Francisco Multiple Sclerosis Center.  Within UT Southwestern, he currently serves as Director of the Neuroinnovation Program, Director of the Multiple Sclerosis and Neuroimmunology Imaging Program, and Deputy Director of the MS Program at the Clinical Center for Multiple Sclerosis.

Dr. Okuda’s current research is focused on end-to-end innovative approaches involving the design, creation and implementation of tools aimed at improving the evaluation, diagnosis, and management of patients with multiple sclerosis.  He is both nationally and internationally recognized for his work in defining and investigating radiologically isolated syndrome (RIS) and currently directs scientific strategies within the Radiologically Isolated Syndrome Consortium (RISC), a multi-national working group aimed at advancing the science of the very early forms of CNS demyelination.  In addition to this work, his background involves translational research specific to novel efforts aimed at creating the next generation of diagnostic metrics and unique platforms for disease surveillance.  He has designed and created highly successful technological applications, devices, and mobile applications that are being utilized for education, research, and patient care within the neuroscience field.

Dr. Okuda is a Diplomate of The American Board of Psychiatry and Neurology, Inc., Fellow of the American Academy of Neurology, Fellow of the American Neurological Association, and member of the American Academy of Neurology Committees on Neuro-imaging and Ethics.

Leo Maher, M.D.

Dr. Maher is the President of his independent private practice, offering specialty services in neurology, deep brain stimulation, electromyography, neuromuscular issues, migraines, and is a multiple sclerosis specialist within the Hawaiian islands.

With a Medical Degree in Medicine from the Wayne State University School of Medicine and a Masters in Health Administration and Preventive Medicine, he launched his medical career as a Staff Neurologist for Straub Clinic and Hospital. Gaining nine years of valuable experience, Dr. Maher transitioned to The Queen’s Medical Center, where he has spent the last 13 years as a Staff Neurologist.

Paralleling his position at the hospital, Dr. Maher operates his private practice, allowing him to embrace and extend his full spectrum of talents in a more personalized atmosphere. Drawing on specific expertise in the behavioral aspects of brain diseases, Leo offers specialized care for patients suffering from a variety of neurological disorders and diseases.


Katy Wright, MPAS, PA-C

Katy Wright is a Physician Assistant specializing in multiple sclerosis within the Department of Neurology and Neurotherapeutics at UT Southwestern Medical Center in Dallas. Katy completed her undergraduate education at Texas Tech University. She received her Masters of Physician Assistant Studies at UT Southwestern Medical Center in 2012.

Her current research is focused on improved clinical and radiological outcomes associated with reduced lymphocyte counts in multiple sclerosis patients and three-dimensional shape and surface features distinguishing multiple sclerosis lesions from nonspecific white matter disease. In addition to this work, her background includes a community service initiative that allows patients to receive multidisciplinary care in their home.


Katy is passionate about educating patients on how dietary habits can affect autoimmune diseases and leads the department’s program on diet and wellness. She is a member of the American Academy of Physician Assistants, Texas Academy of Physician Assistants, and American Academy of Neurology. 

Le Hua, M.D.

Le Hua, MD is the Director of the Multiple Sclerosis Program at the Cleveland Clinic Lou Ruvo Center for Brain Health in Las Vegas, NV. Dr. Hua earned her MD at Keck School of Medicine at the University of Southern California. Subsequently, she completed her internship at Banner Good Samaritan Medical Center in Phoenix and her neurology residency at Stanford University School of Medicine. She went on to complete a clinical fellowship in Neuro-Immunology and MS at the Barrow Neurological Institute and St. Joseph’s Hospital and Medical Center in Phoenix.

Dr. Hua is involved in clinical trials assessing new therapies for the treatment of MS and her personal research interests include using advanced MRI techniques to study MS and neurological disorders, as well as aging and cognition in MS. She is currently the Eric and Sheila Samson Chair for MS Research at the Lou Ruvo Center for Brain Health.

Lilyana Amezcua, M.D., M.S.

Dr. Amezcua is an associate professor of clinical neurology at the University of Southern California (USC), Keck School of Medicine. She received her MD degree from Jefferson Medical College in Philadelphia. She completed a residency in neurology and was chief resident at USC.  She followed by completing a Multiple Sclerosis (MS) and Neuroimmunology Fellowship under the tutelage of Dr. Leslie P. Weiner. Under an NIH KL2 training grant she completed a Master’s in Biomedical, Clinical and Translational Science at USC with a focus on epidemiology of MS in Hispanics under the tutelage of Dr. Annette Langer-Gould.   

Her research is focused on identifying potential genetic and epidemiological contributions to prognosis in MS and how that may contribute to healthcare disparities observed between Hispanics and other racial/ethnic groups with MS.