Optimum Neurology opened its doors in Bala Cynwyd in 2014, and David S. Tabby, D.O., has over 29 years of Neurologic practice. David Tabby, DO is certified by the American Board of Psychiatry and Neurology and the American Osteopathic Board of Neurology and Psychiatry since 1989. He is a fellow of the American Academy of Neurology. He is also certified by the Consortium of Multiple Sclerosis Centers since 2007.