Phone: 985-867-5955 985-867-5955


3985 Highway 59

Mandeville, LA 70471

Hours of Operation:

Mon-Fri: 8 am to 6 pm

Sat: 8 am to 12 pm

Sunday: Closed

Our Services

DeVun Veterinary Medical Hospital offers a wide range of veterinary services for pets. 

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New Client Center

Save time by filling out new client forms ahead of your visit!

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Pet Health Articles

Read important health information regarding pet safety and wellness.

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Our Online Store

Get the products your dog or cat needs in our online store!

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Welcome to DeVun Veterinary Medical Hospital!

At DeVun Veterinary Medical Hospital, our slogan is "Excellence In Veterinary Care For Your Pet." We provide excellent care for your pets in a clean, state of the art environment. Dr. John DeVun has dedicated his life to veterinary medicine and has been practicing since 1988 and has operated his own clinic since 2005. Dr. Jennifer Reeb has been practicing since 2005. We invite you to call or stop by anytime to make an appointment!  

full service & locally owned
veterinary clinic and hospital

What Our Clients Say

  • Awesome as always. Hektor is feeling much better and getting around great. Very highly recommend Devun Vet Hospital to anyone. They not only are courteous and friendly but they genuinely love animals.

    -D.B. - Facebook Review
  • HUGE THANK YOU to St Tammany Fire District 12, Michael DeVun and co-workers for rescuing our traumatized cat tonight from a culvert. They were all amazing but we would've lost him again if it wasn't for Michael Devun. Words can't express our appreciation for your kind heroic act !

    -J.S. - Facebook Review
  • We have taken our dogs to Dr. DeVun for more than 10 years. When he moved his practice to the north shore and we were still on the south shore, we followed him despite the hour long trip back and forth. He and his staff are extremely professional in their care for each individual animal . Watching him work you can see he genuinely cares for his "patients". I have personally seen him work well into the night when he has a challenging case or an animal is critical. He answers every question he is asked without any sense of arrogance or frustration. He invests a great deal of money in order to have the best of the best medical equipment to assist him. We have delicate little chihuahuas and despite their fragility he has literally saved our dogs lives on more than one occasion. We also had four knee surgeries on our dogs over the years to repair genetic problems and they run, jump and play now with no problems. He is the best orthopedic doctor. His best feature is that he is so compassionate to 

    -E.M. - Facebook Review