Dr. Sergay was born in Johannesburg, South Africa and received his training at the University of Witwatersrand Medical School in Johannesburg, where he also served his internship. He completed his Neurology residency training at the Harvard Longwood Program in Boston and subsequently served as a neurologist at the Lahey Clinic Foundation in Boston and was an instructor in neurology at Harvard Medical School, before moving to Tampa in 1980.
He is a diplomat of the American Board of Psychiatry and Neurology. He was Medical Director of the Neuro-diagnostic Laboratory at Tampa General Hospital from 1984 to 1988. He was President of the American Academy of Neurology (2007-2009).
He has previously served the Academy in several positions, including Chair of Strategic Planning, Trustee of the American Brain Foundation, Director, Neurology Enterprises, Inc., and has been the recipient of the American Academy of Neurology Presidential Award of Recognition. He is the Founding Chair of the United Council for Neurologic Subspecialties. He has served the World Federation of Neurology as the U.S. Delegate, and currently chairs its Education Committee and is a Trustee on its Board of Directors. Dr. Sergay is married and has three daughters.