David Tabby was born in Philadelphia. He graduated from Princeton University in 1980 with a degree in Population Biology. Dr. Tabby earned his Osteopathic Medical degree from the Philadelphia College of Osteopathic Medicine in 1984. He completed his Neurology residency at Thomas Jefferson under Robert J. Schwartzman, M.D. in 1988, where he served as chief resident. Dr. Tabby was in private practice in Philadelphia for 14 years before joining the faculty of the Drexel University College of Medicine as an associate professor. He re-entered private practice in 2014. He is a fellow of the American Academy of Neurology. Dr. Tabby became interested in MS during his residency, working with Fred Lublin, M.D. He is certified by the Consortium of Multiple Sclerosis Centers as a practitioner. He was elected to the Volunteer Hall of Fame by the Greater Delaware Valley chapter of the National MS Society in 2013. Dr. Tabby has participated in many MS clinical trials and original research projects involving cognition in MS.