King George Veterinary Clinic

12378 King George
King George, VA 22485


Dr. John Niznik opened King George Veterinary Clinic in 1995. Since then, he has carefully selected his team to ensure his patients and clients are receiving the best care at all times. King George Veterinary Clinic sees you and your pets as part of its family!


We offer a very wide range of services, from wellness exams and routine vaccines and testing to surgeries and digital radiography as well as  boarding, daycare, bathing and grooming!

Meet Our Team:

Dr. John Niznik

-Dr. Niznik graduated from the UAJC or University of Autonoma de Cividad Juarez in 1985 with a degree in Veterinary Medicine. After practicing in his home state of New York, he moved to King George County in 1995. Soon after, he bought King George Veterinary Clinic. Dr. Niznik is very active in his community, from leading a boy-scout troop to holding a seat as president of the Virginia Veterinary Association. He resides in King George with his wife, Citlali, and children, John Jr., Patricia, Caitlin, and Skipper the poodle/pug mix, and Bar-B-Que the cat.

Citlali Niznik, Office Manager

-Citlali Niznik graducated from the Rochester Institute of Technology in 1991 with a Business Degree. She has worked next to her husband at King George Veterinary Clinic since 2001, helping the clinic grow and reach its potential.

Marie I. Serrano, LVT

 -Marie Serrano graduated from NVCC  (Northern Virginia Community College) in 1996 with a degree in Veterinary Technology. She has worked in numerous hospitals from critical care to emergency facilities and has special interest in dentistry and anesthesiology. Marie has experience with large and small animals, as well as avian and exotics. Marie has been with King George Veterinary Clinic since January 2011. She has many animals at home, including Hannah, a parrot, and Chispy, a rat terrier.