Dr. David A. Gehret

Dr. Ken Martinez. is a Board Certified Neurologist with a clinical practice specializing in Movement Disorders, Migraine, Memory and Neuromuscular disorders. While serving as the Medical Director of the Movement Disorder Program at the South Coast Health Center in Aliso Viejo, Dr. Martinez is also on staff at Providence Mission Hospital and Saddleback Memorial Medical Center. His strong teaching ability has carried with him into private practice, and he serves as a clinical preceptor for Western University of Health Sciences Physician Assistant Program, University of California, Irvine Nurse Practitioner Graduate Program and Chapman University Crean College of Health and Behavioral Sciences MMS PA Studies Program. He is an active member of the American Academy of Neurology, National Headache Foundation, National Parkinson’s Disease Foundation, Alzheimer’s Orange County, International Essential Tremor Foundation, Restless Leg Syndrome Foundation, and the Movement Disorder Society. Dr. Martinez is rated as a Distinguished provider by MediFind in the treatment of Thoracic Outlet Syndrome. His top areas of expertise are Drug Induced Dyskinesia, Chronic Demyelinizing Neuropathy with IgM Monoclonal, Spinal and Bulbar Muscular Atrophy, and Spinal Muscular Atrophy Type 3.

Panos Marmarelis is a Neurologist in Long Beach, California. Dr. Marmarelis is rated as a Distinguished provider by MediFind in the treatment of Thoracic Outlet Syndrome. His top areas of expertise are Memory Loss, Primary Orthostatic Tremor, Landau-Kleffner Syndrome, and Hereditary Sensory and Autonomic Neuropathy Type 2.

Dr. Barton graduated summa cum laude from UCSD then received his MD from UCLA School of Medicine. He completed his neurology residency at UCLA, followed by fellowship training at UCLA and Cedars-Sinai Medical Center in Los Angeles, CA. This training included intraoperative monitoring, clinical neurophysiology, electromyography (EMG/NCV), electroencephalography (EEG), and neuromuscular disease. Dr. Barton is dual board-certified in neurology and clinical neurophysiology. He has great enthusiasm and drive for patient care to go with his robust academic and clinical background. His research interests have included electromyography, neuromuscular disease, electroencephalography, vestibular testing, and peripheral neuropathy. He is currently active in clinical research studies and has been awarded research grants in multiple disciplines. On a personal note, Dr. Barton was born and raised in Los Angeles and is married with three daughters. His studies have taken him around the world, including Russia and Beijing University in China. He had also been an award-winning competitive ballroom dancer and is an accomplished impressionist oil painter. Dr. Barton is rated as an Advanced provider by MediFind in the treatment of Thoracic Outlet Syndrome. His top areas of expertise are Cervical Myelopathy, Memory Loss, Acoustic Neuroma, and Peripheral Neuropathy.