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  • Core Veterinary Services, O’Fallon
    Core Veterinary Services, O’Fallon

    Meeting All Your Pets' Health Care Needs

    Our team offers all the core veterinary services your pet needs to stay healthy, from preventive wellness exams and vaccinations, to dental care, internal medicine, and senior pet care.

    Core Care

  • New Patients Welcome, O’Fallon
    New Patients Welcome, O’Fallon

    Welcoming New Patients in St. Charles & St. Louis Counties

    At Gentle Doctor Animal Hospital, we are committed to offering compassionate care to each of our patients. We welcome you and your pet into our veterinary family.

    Patient Info

Welcome to Our O’Fallon Animal Hospital

Gentle Doctor Animal Hospital is a full-service vet clinic that offers comprehensive medical services for cats and dogs in O’Fallon, MO and the surrounding areas.

From preventive care and surgery to veterinary dental care, our broad and varied service offering can meet all of your pet’s health needs in one place.

We care for companion animals in St. Charles & St. Louis Counties and have developed a reputation over the years for quality, professional care with a compassionate touch.

Whether you are bringing your pet in to see us for the first time, or have been counting on our veterinary team for years, we will treat your animal as if it was our own.

About Our Hospital

Dental Care, Gentle Doctor Animal Hospital, O’Fallon

Dental Care

Keep your pet's oral health sterling with our veterinary dental services. 

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Wellness Exams, Gentle Doctor Animal Hospital, O’Fallon

Wellness Exams

Routine exams are a critical component of your pet's healthcare routine.

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Preventive Care, Gentle Doctor Animal Hospital, O’Fallon

Preventive Care

Vaccinations and parasite prevention medicine to keep your pet healthy.

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Veterinary Surgery, Gentle Doctor Animal Hospital, O’Fallon

Veterinary Surgery

We perform a variety of surgical procedures for cats and dogs.

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  • I absolutely love this vet. For the first time, it actually feels like a vet is listening to my concerns and actually cares. I've been to so many vets that have been dismissive and uncompassionate. Dr. Katelyn was amazing and spent more time than I would have expected explaining everything to me.
    Kaylee M.

Gentle Doctor Animal Hospital, O’Fallon

Senior Pet Care, Gentle Doctor Animal Hospital, O’Fallon

Senior Pet Care

Geriatric pets have unique vet care needs, we make the effort to meet these unique challenges faced by aging pets.

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Puppies & Kittens, Gentle Doctor Animal Hospital, O’Fallon

Puppies & Kittens

The first year is a crucial time for building a strong healthcare foundation. Our animal hospital helps new pet owners get their puppies and kittens off to a great start.

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Gentle Doctor Animal Hospital, O’Fallon

Urgent Care, Gentle Doctor Animal Hospital, O’Fallon

Urgent Care

An emergency situation can arise anytime without notice. Our veterinarians step up to provide urgent care for O’Fallon cats and dogs in need whenever we can.

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Diagnostics & Lab, Gentle Doctor Animal Hospital, O’Fallon

Diagnostics & Lab

Our on-site state-of-the-art veterinary laboratory grants us the opportunity to make quick and accurate diagnoses which allows for more effective treatment.

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Tips & Advice From
Gentle Doctor Animal Hospital

Whether you are looking for advice about parasite protection or information on common pet illnesses, our informative blogs feature helpful tips and advice from our O’Fallon vets that will help you to keep your pets healthy and happy.

Kitten Teething: What You Need to Know

Kitten Teething: What You Need to Know

Just like people, our feline friends have baby teeth that fall out before their permanent teeth come in. Here, our O’Fallon vets explain kitten teething and how you can help relieve any discomfort they may be feeling. 

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What to Expect at Your Kitten's First Vet Visit

What to Expect at Your Kitten's First Vet Visit

So you have just brought your new furry friend. Congratulations! But make sure you're scheduling your first veterinary appointment, as well as routine exams going forward.

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How to Raise a Puppy: Guide for the First Year

How to Raise a Puppy: Guide for the First Year

Bringing a new puppy into your family can be an exciting but daunting prospect. Taking care of your new four-legged friend in their early age is easier when you're armed with good information. In this article, you'll find a loose guide about how to raise a puppy.

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Newborn Kittens: When Do Kittens Open Their Eyes?

Newborn Kittens: When Do Kittens Open Their Eyes?

Cats are among the most common family pets, and many families choose to raise their new cat from when it is a kitten. Understanding the milestones of a kitten's early development is crucial for providing the best care possible. In this post, we'll explore what to expect in the first few weeks of a kitten's life, particularly focusing on when newborn kittens open their eyes and start walking.

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New Patients Welcome

Gentle Doctor Animal Hospital is accepting new patients! Our experienced vets are passionate about the health of companion animals in O’Fallon and surrounding communities. Get in touch today to book your pet's first appointment.

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Hours

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    • Monday:07:30 am - 06:00 pm
    • Tuesday:07:30 am - 06:00 pm
    • Wednesday:07:30 am - 06:00 pm
    • Thursday:07:30 am - 06:00 pm
    • Friday:07:30 am - 06:00 pm
    • Saturday:08:00 am - 01:00 pm
    • Sunday:Closed

Book Online (636) 272-5950