Our Staff

Dr. DeVun is a 1988 graduate of the LSU School of Veterinary Medicine. During his time at Veterinary school, he was the caretaker for the school’s mascot, Mike IV. After nearly 20 years as an Associate Doctor, he decided to open his own practice on the Northshore in 2005 with his wife as his business partner.

He has a professional interest in orthopedic and neurosurgery. Away from the hospital, he enjoys family life with his wife Kathy, his three children, Michael, Justin and Kristyn along with his grandchildren Myles, Sloan, Lyla,

Kathy has a degree in Computer Science from Southeastern Louisiana University. She met John at SLU, and they were married before he entered LSU Veterinary School. After growing their family and settling down in Mandeville, they decided to open their own hospital. With her degree and her love of animals, she decided to take on the business and become the hospital manager. In her free time, Kathy enjoys being with her grandchildren Myles, Sloan, Lyla, and Mason.

Brittany is the daughter in law of John and Kathy. She started working with us part-time in 2012 after graduating from LSU with a bachelor’s degree in Business Management. She is married to Justin DeVun, who works in veterinary sales, and has two children, Myles and Sloan. She also has a dog named River. Outside of the clinic, Brittany enjoys traveling and volunteering for her children’s school.

Alexis has been grooming for over 15 years and has been working with us since the day we opened in 2005. She attended Paragon School of Pet Grooming in Michigan where she received the “Rising Star” award. She enjoys camping and spending free time at the lakefront with her husband, Bert, and two children, Quinn and Sawyer. Alexis is also a fan of the New Orleans Saints. Who Dat!

Donna joined our staff 6 months after opening, in 2005. She works part-time in our hospital as a receptionist. Donna enjoys being our funniest staff member and brightens our office with her wit. She has a dog named Rin and a cat named Racer.

Cat has been a member of our team since 2009. She left retail in order to pursue her passion for animals and work in a veterinary hospital. She enjoys reading, exercising and spending time with her family. She is married to her husband, Chris, and has two children, Gabby and Christian. She also has a dog named Barqs, and a rabbit, Briar.

Michael enjoys helping with the family business in his spare time. On days the hospital is closed, he gives his time to taking care of our patients who are boarding or hospitalized. Michael is married to his wife, Katheryn, and is a professional firefighter. He also owns his own business, Hardline Fabrication. He enjoys spending time outdoors with his dog, Riddick and also has many chickens!

Alexandra is currently a student studying integrative biology at Southeastern Louisiana university hoping to attend vet school. She previously worked at a coffee shop before here and wanted to move to a more future driven job that also included her passion: animals. She enjoys movies and doing anything crafty like legos. Alexandra has two cats, Arlo and Miso, who are spoiled.

Lisa joined our practice as a part-time receptionist in April 2025. She has a bachelor’s degree from the University of New Orleans, and a Master’s degree from George Mason University in Virginia. She enjoys spending time with her husband, Andy, and her adult sons, Drew, Sam, and Zach, and daughter in law, Taylor. Lisa is also a jewelry artist and has two dogs, Ripley and Cash.