Dr. Hannon began his veterinary career in Harvey's Lake, Pennsylvania, as a veterinary assistant cleaning kennels, walking dogs, grooming, and scheduling appointments. Growing up with a love of animals, his household always contained a plethora of Labradors, and at one time, five of them were named Lady Guinevere (Gwen), Sir Lancelot, Bandit, Goliath and Sampson. Marley followed, and hilarity ensued. He was his pride and joy, exactly like the movie of the same name. He would commonly chase Marley around the house, grabbing anything and everything out of his mouth that should not have been there. These episodes consisted of sticks (more like logs where he would get stuck trying to enter the back door), various socks and clothing, raw chicken off the counter, and pieces of the new couch cushions.

During high school, Dr. Hannon enjoyed playing soccer, wrestling, baseball, and basketball, and received a scholarship in soccer to the Pennsylvania State University, completing his major in Animal Bioscience. Following graduation, he was hired as an emergency technician, while simultaneously completing his Masters in Biology at East Stroudsburg University, where he focused on intestinal parasitic infections of laboratory mice.

Dr. Hannon attended St. George's University School of Veterinary Medicine in the beautiful Caribbean island of Grenada, and completed his DVM degree. During his third and fourth term, he was awarded most outstanding student, and the surgical team award.

He then completed his clinical year of veterinary school at Washington State University, where he pursued a surgical rotation in Seattle, WA. His surgical interests include soft tissue and orthopedics. He has completed continuing education requirements in wound management, fracture repair and stifle surgery.

On his time off, Dr. Hannon's interests include playing golf, attending The Black Hole at Raiders games, travelling, live concerts and playing guitar.