Medical Staff

Staff Doctors

Dr. Brenna Fitzgerald, originally from Dallas, Texas, is a 2007 graduate of Texas A&M University College of Veterinary Medicine. Dr. Fitzgerald has had a lifetime love affair with animals of all kinds, but has always considered working with birds and exotic animals her true calling.  

Dr. Anna-Marie Ruoff grew up in Colorado surrounded by nature, wildlife, and a small zoo of exotic pets. She decided very early in life that she wanted to be a veterinarian for exotic animals, and her passion for exotic animal medicine has only grown over time.

Dr. Guerrera is a graduate of Colorado State University with a strong interest in avian and exotic pets. He has worked at the Denver Zoo and was involved in several field studies, including mountain gorillas in Uganda and sea turtles in Costa Rica. He has presented at multiple national conferences on a variety of topics in exotic animal medicine.


Dr. Lykins grew up in Dayton, OH and attended Ohio State University for her undergraduate degree. During her undergrad, she spent most of her free time volunteering for wildlife rehabilitation centers and fostering orphaned wildlife. She later graduated from the University of Florida’s College of Veterinary Medicine in 2023.