Four Paws Animal Hospital | O'Fallon Veterinarians Skip to Main Content Skip to Footer

Welcome to Four Paws Animal Hospital!

Four Paws Animal Hospital is a full-service, AAHA-accredited veterinary medical facility located in O'Fallon, Illinois.

Our mission is to provide high-quality pet health and wellness services to assist your pet in living a longer, happier and healthier life. We provide our clients with a wide range of veterinary services for cats and dogs. We also provide our clients with access to leading-edge products and services, as well as authoritative education content focusing on enhancing the human/animal bond.

Call us at (618) 632-4615 today, or book your next appointment online!

Now Available: Mobile App & Online Booking

Now Available: Mobile App & Online Booking

We have some exciting new features available at Four Paws Animal Hospital! You can now easily schedule appointments directly online via desktop or mobile device for your furry friends. We also have a new mobile app through PetDesk, which we encourage you to download to book appointments, request refills, view and share your pet's vaccination records, and more. 

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Don’t Wait for a Bite: Why Keeping Rabies Vaccinations Up to Date Matters

Don’t Wait for a Bite: Why Keeping Rabies Vaccinations Up to Date Matters

Rabies remains one of the world's deadliest zoonotic diseases, but it is also one of the most preventable. Learn why staying current on vaccinations is the most effective way to break the chain of infection and ensure your pet’s long-term safety.  Learn More »

Our Clients Love Us

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Always a great experience

Gloria J Ostman

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Maverick is our third dog that has been treated at Four Paws. Dr. Welch spent a good amount of time with him and clearly explained what she thought was going on and next steps in his treatme...

Carol Kalkwarf

4.6

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Four Paws Animal Hospital