Dr. Castle is a 1989 graduate of Oregon State and Washington State University. He has owned the clinic since 1991. His interests include surgery, dermatology, and business/practice management. He is a member of the Oregon veterinary association and also the AVMA. Dr. Castle and his family have dogs named Genevive, Romeo, and Oliver, a cat named Rocky and a turtle named Henry. In his spare time, Dr. Castle likes to spend time with his family and participate in various sports.