Clinic Notice

Temporary Clinic Closure Notice

Fullerton Pet Clinic will be closed from October 12 through October 19 while Dr. Lee attends an overseas veterinary conference.

During this time, our team will still be available to send medical records and assist with prescription refills. However, patient appointments, examinations, and treatments will not be available until the clinic reopens.

If your pet may need medication during this period, we recommend requesting refills in advance.

We apologize for any inconvenience and appreciate your understanding. Thank you for trusting Fullerton Pet Clinic with your pet's care!

Call or text (657) 655-4393
(657) 655-4393(657) 655-4393Pet Portal2453 East Chapman Ave, Fullerton, CA 92831
Care you can trust, from a team you'll love

Internal Medicine

Accurate answers. Thoughtful treatment. Better outcomes.

For Puppies & Kittens

Immature immune systems mean vomiting and diarrhea can turn serious quickly — and it's when we're watching closely for parvovirus.

For Adult Pets

Respiratory infections, digestive disorders, tick-borne disease, and kennel cough are the cases we see most in this stage of life.

For Senior Pets

Diabetes, Cushing's disease, and thyroid disorders become more common — which is why we recommend bi-annual wellness exams once a pet reaches their senior years.

Why Early Diagnosis Matters

Internal medicine cases rarely get simpler by waiting. If something feels off with your pet's energy, appetite, weight, or thirst, please don't wait and see; give us a call. The earlier we catch it, the more options we have.

Something feel off?

Let's find out what's going on, before it has a chance to get more complicated.