Dr. Donnelly earned a bachelor's degree in biology from UC San Diego before attending and graduating from Kansas State University College of Veterinary Medicine. He practiced in Northern California for 3 years prior to moving back to San Diego and joining Banfield in 2005. His areas of interest include soft tissue surgery, dermatology, and feline medicine. He lives in Carlsbad with his partner, Janette, and their cat, Tori. In his free time, Dr. Donnelly enjoys playing ice hockey, skiing, and home brewing.