Mark Troxel, DVM, DACVIM (Neurology), is a staff neurologist and neurosurgeon at Massachusetts Veterinary Referral Hospital in Woburn, Massachusetts. His clinical interests include feline brain tumors, vestibular dysfunction, and neurosurgery. He earned his DVM from Iowa State University. Following a rotating internship and a medicine specialty internship, he completed a neurology residency at University of Pennsylvania. Dr. Troxel has published numerous articles and several book chapters. He also created the website NeuroPetVet.com, an online canine and feline clinical neurology textbook and blog.