Appointment Request

Welcome to Kingsley Animal Hospital
Your Veterinarian in Orange Park,FL
Call us at (904) 264-2419

Image of a dog wearing a stethoscope

Kingsley Animal Hospital is a full service companion (cats and dogs) animal hospital. We place the care, diagnosis and treatment of your pet as our primary concern. We offer a comprehensive, progressive and compassionate approach to medicine and surgery. We offer a wide range of medical, surgical and counseling options – both traditional and holistic.

It is our medical staff’s commitment to provide quality care throughout the life of your pet. We provide services such as wellness exams, hospitalization, nursing care, vaccinations, pharmaceuticals, supplements, general surgery, digital x-rays, complete laboratory services, dental care, behavioral counseling and nutrition counseling.

We understand the special role your pet plays in your family. Together, we take a proactive approach that can maximize your companion’s quality of life. We treat your pet as our own. We believe that preventative care and good nutrition are the keys to optimal health – for a happy and long life!

Client satisfaction is very important to us. We are a friendly, experienced team and know that it is through respect, integrity and exceptional care, that we earn our patient’s and client’s trust.

Dr. Thomas Fredenhagen
Orange Park Veterinarian | Kingsley Animal Hospital | (904) 264-2419

1070 Kingsley Ave
Orange Park, FL 32073

Download Our App

Download the PetDesk App

Meet Our Skilled Team

Learn Who We Are

  • Thomas A. Fredenhagen
    - DVM and Co-Owner

    Thomas A. Fredenhagen, DVM (aka “Dr. Fred”) was born in St. Augustine, FL and raised in Palatka, FL. He attended St. Johns River Junior College and the University of Florida, before receiving his DVM degree from Auburn University in 1976.

    After an internship in Tallahassee, FL he moved to the Jacksonville/Orange Park area to continue companion animal practice. He established and ran the Argyle Animal Clinic for 10 years. He has been practicing veterinary medicine for more than 40 years. He is a member of the American Veterinary Medical Association and the Florida Veterinary Medical Association. He has worked with and been a board member of Safe Animal Shelter.


  • Karen Fredenhagen
    - Veterinary Technician and Co-Owner

    Karen Fredenhagen has been a Veterinary Technician for more than 25 years. Her areas of extensive experience include surgery, special needs, nutrition, acupuncture / homeopathy (studied under Dr. Peggy Flemming for four years), behavioral counseling and laser therapy.

    She also manages the staff and hospital business operations. She rescues owls, hawks and horses to name a few. Karen shows horses and has shown dogs. Karen has assisted at Safe Animal Shelter and served on the Board of Directors.

  • Grace
    - Veterinary Technician

    Grace joined the Kingsley Animal Hospital family in February 2015. Since then she has worked her way up from vet tech to our hard-working office manager. She has a deep love for dogs, especially boxers and pitties. 

    She's volunteered with organizations such as wildlife rescue centers and the Jacksonville Zoo. Her personal zoo at home includes 2 pups: Jimi (a chihuahua/dachshund mix) and Harper (a lab mix) as well as her first ever cat, named Neo. Her other passions include binge-watching shows on Netflix, going to the beach, and keeping up with her human son.

  • Samantha
    - Veterinary Technician

    Samantha officially joined our team in February 2017.  She graduated from the University of North Florida in 2015 with a Bachelor of Science in Biology and aspires to be a veterinarian one day.  Samantha’s love of animals runs deep, but has specific affections for dogs, cats, horses, and wolves. 

    Samantha is also an avid reader of fantasy novels, collects painted ponies figurines, loves to draw using pastels and dabbles in painting and sculpting.  The household menagerie of pets includes three rescued dogs (Bella, Allee, and Treble), a toy poodle (Pearl), four rescued cats (Loki, Odin, Bandit and Othello), and her beloved German Shepherd (Denali)

  • Clyde
    Greeter and KAH Mascot

    Clyde was a kitten that came to us from the Safe Animal Shelter in 2001. He greets everyone as they walk into the hospital. He loves to be petted and have his belly rubbed, and may even climb up on your shoulder.

    Read More


Featured Articles

Read about interesting topics

  • Does Your Cat Have a Grooming Problem?

    Noticed a sudden change in your cat's grooming habits? Over- or under-grooming can be a sign of trouble. ...

    Read More
  • February Newsletter: Weird Things Your Cat Does and What They Mean

    Looking for an explanation for your cat's strange behaviors? ...

    Read More
  • The Next Step

    The grieving process includes accepting the reality of your loss, accepting that the loss and accompanying feelings are painful, and adjusting to your new life that no longer includes your pet. How do I tell my family? Family members usually are already aware of a pet's problems. However, you should ...

    Read More
  • Battling Canine Cancer

    Every day, Cindy Fleischner lines up her crew of cuddly canines for breakfast. As the four other dogs eat, Cindy pulls Katy, her 12 year old Shepherd mix aside for a peanut butter treat. Katy is battling lymphoma and this treat hides her daily dose of chemotherapy drugs. Katy is not alone in this war. ...

    Read More
  • Could Those Sniffles Be a Symptom of the Feline Flu?

    Can you spot the signs of feline flu? ...

    Read More
  • How to Help Your Cat Get More Exercise

    When's the last time your cat worked out? Daily exercise can help keep your furry friend healthy. ...

    Read More
  • 9 Reasons Your Cat May Be Losing Weight

    Does your cat look thinner than usual? One of these nine reasons may explain why your cat is losing weight. ...

    Read More
  • Breed Specific Rescue Groups

    Many dog owners admire the unique looks and personalities of purebreds, but also worry about the fate of millions of pets euthanized each year. What many people don't realize is that there are specific breed rescue organizations for almost every breed of dog, placing dogs in need to new homes. Dogs aren't ...

    Read More
  • Feline Ear Issues

    Most cats will never have a serious problem with their hearing during their lives. However, several ear issues can affect cats. Many of these can cause discomfort or pain, but some may even lead to a partial loss of hearing or deafness. Ear issues in cats can have a variety of causes, including infections, ...

    Read More
  • Hypertension

    Hypertension, or high blood pressure, is fairly common in cats. Although it can occur on its own, it is usually a sign of other serious health problems. High blood pressure can also cause problems with other parts of the body, including the eyes, kidneys and heart. Cats are more likely to develop high ...

    Read More

Newsletter Signup

Sign up for more articles