Skip to main content

Get To Know Us

We’re pleased to provide a wide variety of
veterinary services for animals in Mercer County.


Our Quality Services

Mercerville Animal Hospital offers a wide range
of veterinary services for your pet(s).



Book an appointment online quickly and easily.


Online Store

Need pet supplies? Check out our brand
new online store!

Get to Know Our Practice

Mercerville Animal hospital has been operated by the Carter family since 1957, his father Dr Carter Senior started the practice.  Mercerville Animal Hospital is family owned and operated and we hope our clinic experience a place that they feel part of the family.  We truly want the best for our patients and love what we do.

Learn More

Caring & Compassionate

Our Team

Get to know the doctors and staff at Mercerville Animal Hospital.
We have a dedicated team of professionals who take the care of
your furry family member seriously. We’re pleased to provide exceptional
vet care for your pets! We look forward to seeing you soon.

Comprehensive Care

Our Services

We offer a wide range of services including medical, diagnostic, surgical, wellness and preventive health care needs for your pets so they live healthy, happy lives.

What Our Clients Are Saying

This practice was originally recommended to me by a friend, and my two rescue dogs have been going here for almost 8 years. They have seen all 3 Drs. Carter and Dr. Stewart (sp?) - all of whom are very caring. The Drs. always remember me and my dogs, and I love that they take the time to give my furbabies a thorough exam and to educate me. Several years ago my Golden became very ill suddenly and even the local emergency/specialty hospital was stumped. It was Dr. Carter Jr. who saved his life. I trust these guys implicitly.

Victoria H.

I have taken my pets to the Mercerville Animal Hospital for over 40 years. All of the Doctors and staff have treated my dog with loving care and respect. When my family was experiencing financial difficulties, I was able to slowly pay my bill. They have seen my dog on an emergency basis several times. One of my friends, whose Veterinarian was out of town, raced their dog who was not breathing to Dr. Carter's office and he saved her dog. I highly recommend the Mercerville Animal Hospital!

Sue S.

We switched over to Mercerville a couple of years back after seeing the difference in just an ordinary checkup between here and another vet's office on the other side of town. The location itself is slightly ragged around the edges, but for regular services the doctors there seem to put more effort and care into their examinations and diagnosis. There have been a couple of times where we've needed to go into PA to the CARES animal hospital for emergencies and specialty care, but for the everyday stuff, we're very happy with Mercerville. The only downside is that it seems we've had a different doctor every time I've taken the dogs in for a checkup. I'd like to have a little more consistency in our doctor, so that they can build a history with our dogs and us.

Rich W.

I love this animal hospital! The staff is so friendly, and they squeezed me in since I was there last month for a different issue with my cat and am moving out of state in a few days. The doctor was amazing! They only billed me $32 which included a courtesy nail trim (it is usually $15). I highly recommend them to anyone who wants an animal hospital that is amazing!


Took my Princess for her yearly checkup and to have her teeth checked too. I knew she needed to have them cleaned. Dr. Carter came out and greeted me immediately and took us back in the exam room. He was so great and answered all my questions. She needed to have a tooth pulled and have her teeth cleaned and they did it right away. I was so happy and they took such great care of her. She is doing fine tonight. So glad I went there. Great office, thank you everyone for taking such wonderful care of us and being so efficient. (P.S. - This was our first time at Mercerville Animal Hospital.) Dr. Carter your the best! : )


I moved to Hamilton Township 12 years ago and Mercer Animal Hospital became my Veterinary Hospital. They brought my animals through some very difficult times in a highly professional and sensitive manner. They care about the pets and their families. The Doctors and entire Staff show genuine concern for my Dogs and Cats and are truly passionate about animals. Thank you.


Love Mercerville Animal Hospital! When I had to put my pug down I was a mess. They explained everything to me were gentle, caring and very
understanding. Dr. Carter takes care of my two shih tzu's Dunkin and Chewie. He is GREAT! Always explains, takes his time. I never feel rushed no matter how busy they are. I would NEVER go anywhere else. Very accommodating when making an appointment too. If you don't currently go here I strongly recommend that you do!! Very reasonable prices.


Kind, caring staff. Take the time to talk to you and help you understand what is going on with your furry friends. My family has come here for many stories of excellent care and kindness we could tell.


My family has taken all our dogs and cat to The Carter Family since 1966. Always excellent care for each of our pets. The last 4 years our dog Rylie that we rescued had severe allergies in her body that affected her neurologically . Dr Carter and Dr. Colleen went above and beyond to help come up with a cure and recommended specialists, dog food and meds. A brand new medicine came out and Dr. Colleen called me as she was excited it would help Rylie. The last 8 months it was awesome she was improving. However, this Thursday was the hardest day as we had to send Rylie over Rainbow Bridge as her health took a turn. The sincere compassion and concern from all the staff was a great assistance to us and the most saddest time.. We highly recommend the entire staff. With much gratitude to everyone.


I decided to try Mercerville Animal Hospital, as I found the Animal Hospital near my home (and the Princeton Junction train station) to be too
expensive. I was very pleased with Mercerville. It's a small office (with low overhead) and more importantly, the vets are VERY COMPETENT. Doctor Stewart immediately diagnosed a serious condition with my dog on our first visit, without the need for a battery of tests. (This issue had been misdiagnosed by a vet I had visited while vacationing in Miami three weeks prior.) I also appreciated his direct yet compassionate style.

I wish I had discovered Mercerville earlier. I find that too many larger clinics are going the way of human hospitals, with a business focus on maximizing revenue. At Mercerville, it is clear that the Vets there are in charge, they can stay true to the ideals which drove them to become Vets, and they truly care about your pet.


Check Out Our Awesome Online Pet Portal!