About Us

At Palm Harbor Animal Hospital, your pet is more than just a patient – they’re family.

Palm Harbor Animal Hospital serves Northern Pinellas County and the surrounding area. Our doctor and staff know that your pet is an important member of your family, and we strive to provide them with the same loving care we give our own pets. We’re a small intimate hospital that firmly believes compassion and kindness are an important part of healing. From our friendly front desk crew to our skilled technical staff, you’ll find your pet in expert hands whether they’re in for healthy pet care or a serious illness, and you’ll always be welcomed with a smile and a friendly word.

We are dedicated to serving your pets with compassion, common sense care, and commitment. We believe that the best medicine is preventative medicine and are proactive in our approach to keeping your pet healthy. We do not distinguish between the best care and affordable care. To us they are the same thing. Like you, we want to provide your pet with a long and healthy life and are committed to being a lifelong friend, advisor and advocate for their health. We know that bigger is not always better and that each pet and owner is unique. Our intimate, team oriented approach allows us to get to know you and your pet personally. We think outside the box and are always looking for the best way to meet your pet’s individual needs.

Dr. Sullivant has been serving the patients of Palm Harbor Animal Hospital since 2002. The hospital was founded in 1980 by Dr. Thomas Jezek who retired in 2014. Today we carry on a tradition of family oriented veterinary medicine, where pets are more than just patients. This philosophy thus far has allowed us to serve up to three generations of clients with their pets. We at Palm Harbor Animal Hospital would love the opportunity to serve you and your pets in the future. Interested in working with us? Check out our employment opportunities.


Holly J. Sullivant, DVM
Veterinarian and Owner
Dr. Holly J. Sullivant joined the Palm Harbor Animal Hospital family in March of 2002 and took over the practice upon Dr. Jezek’s retirement in 2014. She graduated from Michigan State University with a BS in Veterinary Science in 1995 and with a Doctor of Veterinary Medicine in 1997. Prior to moving to Tampa Bay she worked in well respected small animal hospitals in Miami and Miami Beach where she served a diverse clientele including familiar names such as Gloria Estefan and Ricky Martin. Her patient roster is made up primarily of dogs, cats and small mammals, but she has also treated an eclectic variety of animals including skunks, goats, pigs, turtles, and monkeys. She has written two books on pet care – Ferrets – Our Best Friends and Hamsters – Our Best Friends. Her main focus is in small animal general medicine with a special interest in endocrine diseases, allergies, and dermatology. She lives in the Palm Harbor with her two children, three cats, Ginger, Nutmeg, and Cinnamin (the “Spice Cats”) and her dogs, Chumley, a West Highland Terrier, and Tennessee, a “Tennessee Mountain Dog”.

Casey Fleeman ASVT
Certified Veterinary Technician
Casey joined us as a volunteer in October 2013 while training to be a veterinary assistant.  She then was hired on in January of 2014 as an assistant while she completed her Veterinary Technician training.  She is a graduate of the Veterinary Academy at Tarpon High School and completed her A.S. degree at SPC in 2016 and is certified by the state of Florida as a Veterinary Technician.  Additional training she has completed includes stints at Equine and Emergency Medical Centers and Veterinary Dentistry.  She and her husband live with two wonderful dogs, Bama and Junior.


Renee Wirth
Renee works part time at Palm Harbor Animal Hospital and My Dog’s Spot. She joined our family in 2010. She has worked in the veterinary field since 2008. Her interests are small animals as well as equine, and she is involved with several Animal Adoption and Rescue Groups in our area and has helped foster and rehome hundreds of dogs and cats. She also works with the Florida Animal Emergency Response team and has responded to animal emergencies all over the country. She shares her home with a menagerie of animals including dogs (Gilbert, Raya, and Karen C.), Seven, Hermione, and Goliath the cats, Maggie the horse, and her latest foster animals!


Jordyn Wirth
Office Manager
Jordyn has worked with animals her whole life including at local animal hospitals and pet day cares. She has many pets of her own, including a horse, chickens, dogs, cats, and aquarium fish. She joined us in April of 2018 and has quickly become an invaluable member of our team.


Patient Ambassador
Ladybug joined our family in 2009 at the precocious age of 5 weeks. She has been with us ever since, greeting patients at the door, inspecting bags of pet food, and in general bossing the rest of us around. In her spare time she is a connoisseur of dog and cat treats and likes to take naps on the scale in Exam Room One.


Security Cat
Moose is a relatively new addition to our family. He was adopted by Ladybug in 2013 and spends his days pouncing enthusiastically on unsuspecting clients, warning us about the dangers of dogs, and eating as much of Ladybug’s food as he can possible steal. His hobbies include pestering Ladybug and getting underfoot.