Dr. Donna Riddle is originally from Greensburg, PA (about 40 miles outside of Pittsburgh). Dr. Riddle received a bachelors degree in Microbiology from the Pennsylvania State University and a masters degree in Clinical Microbiology from the Medical College of Pennsylvania before graduating from The University of Pennsylvania School of Veterinary Medicine in 1998. She is also a board certified medical technologist and worked for many years in the laboratory at the Medical College of Pennsylvania, the Hospital of the University of Pennsylvania and the Bryn Mawr Hospital.

While working in small animal practice, Dr. Riddle has developed strong interests in not only medicine but also surgery, endoscopy, and ultrasonography.

In her spare time, Dr. Riddle spends time at home with two Jack Russell Terriers, 'Atticus' and 'Johnny', one chow, 'Hayden', and one cat, 'Mokie.' She also enjoys traversing the Pennsylvania Turnpike to visit family and friends, reading, the theater, and pretending to garden.