Dr. Mulligan graduated from The Virginia-Maryland Regional College of Veterinary Medicine in 1985. He became a Certified Canine Rehabilitation Practitioner in 2016, and a certified Veterinary Medical Acupuncturist in 2017. He and his wife, Patty, live in Forest. They have a dog and a cat, both rescues that they adopted. In his spare time, Dr. Mulligan enjoys hiking, biking, and kayaking. In addition to rehabilitation and physical therapy, he has a special interest in behavioral medicine.