Meet the team

Your Veterinarian in Kingsport, TN

We take pride in serving our community with personalized pet care. Get to know the people who are going to be taking care of your furry friends!

Kingsport Headers - team

Meet Our Veterinary Team

David Johnson

Dr. David Johnson, DVM


Dr. Johnson is a 1976 graduate of Auburn University School of Veterinary Medicine. He received his undergraduate from the University of Tennessee and is a UT football fan holding season tickets. His love and passion for animals are evident in his work ethic. He enjoys internal medicine and performing surgeries.

He and his wife Julie have 4 children and 3 grandchildren and reside in Kingsport with their two dogs, Oliver and Lillian. He also enjoys spending his spare time at the family farm.

Kristen Kiser

Dr. Kristen Kiser, DVM


Dr. Kiser graduated from Louisiana State University School of Veterinary Medicine in 2014. She has been practicing in small animal general practice ever since. She joined Kingsport Veterinary Hospital as an associate veterinarian in July 2020. She has special interests in veterinary dentistry, internal medicine, pain management and anesthesia, and soft tissue surgery. She shares her home with her husband, two children, two dogs, and two cats. She enjoys spending time with her family, reading books, watching old movies, and baking. As a Christian, she seeks to serve and glorify God in all that she does.

Tiffany Casteel Nash

Dr. Tiffany Casteel Nash, DVM


Dr. Tiffany Casteel Nash grew up in Castlewood, VA, on her grandfather’s beef cattle farm, where she developed her passion at an early age in veterinary medicine. Dr. Nash worked for 12 years as a veterinary assistant, during 4 of those years, she was employed by Kingsport Veterinary Hospital. After high school, she was awarded a four-year scholarship at Virginia Tech, where she received her Bachelor’s degree in Dairy Science and Animal and Poultry Sciences in 2016. She then attended Virginia Maryland College of Veterinary Medicine and received her Doctorate of Veterinary Medicine in 2021.

Upon graduation, Dr. Nash began her career at Kingsport Veterinary Hospital as a veterinarian and by practicing mobile large animal medicine in Southwest Virginia. Dr. Nash has special interests in dairy and small ruminant medicine and surgery, as well as small animal internal medicine, emergency, surgery, and ultrasonography! Dr. Nash is Compassionate End of Life Care, and Fear Free certified and practices these sectors every day! Dr. Nash owes all her accomplishments and milestones to God and his glory! Dr. Nash and her husband Harley reside in Nickelsville, Virginia, on their family’s dairy creamery! Together they have two sons, Kaden and Ellis, a dog, Bocephus, and a cat, Aila.

Tiffany Casteel Nash

Dr. Hahn, DVM


I grew up 12 miles south of Pittsburgh, received my BS at Penn State University as an Animal Bioscience major and then started graduate school in Pittsburgh at Duquesne University. I got my start in vet school at the University of Liverpool in England and then transferred to the University of Tennessee where I received my DVM in 1998.

I met my wife, Julie, at the University of Tennessee Veterinary School and we graduated together. We have 3 children (Anna,Addie, and Ben) with 2 in college and 1 in high school. We have a small farm in Meadowview, VA and have taken in all kinds of animals over the years, but my favorite is my 12 year old lab, Maggie.

I started my veterinary career in Abingdon where I worked for 10 years, then took a position as an Emergency Vet at the Airport Pet Emergency Clinic. After 12 years of emergency work a new door has opened and I have decided to assist several hospitals in the area as a Relief Veterinarian. So glad to be part of the team at Kingsport Veterinary Hospital.

Our Veterinary Care Team

Kingsport Veterinary Hospital - photo coming soon
Dennise H.
Hospital Manager/Licensed Veterinary Technician

Dennise Hartley is a Licensed Veterinary Technician and the Hospital Manager for Kingsport Veterinary Hospital. She has been in veterinary medicine for over 30 years. She has been the Hospital Manager at Kingsport since April 2022. She and her husband moved to Tennessee in 2021 from Nevada. In Nevada, she managed and was the lead technician for a 5-doctor practice that she practically grew up in. She moved to Tennessee because she has never lived outside Nevada and wanted to have green rolling hills for her horses and live where people were nice. She and her husband have 18 acres in Bulls Gap. Her dream animal all her life was to have a pure black horse. She was able to breed her own horse and now she has 2 beautiful Morgan horses (Sequoia & Ember). She also has 1 mini horse (Lucy), 2 dogs (Bert & Copper), 1 cat (Gracie), 2 cows (Oreo & Tux) (no they are not the food they are pets), and lots of reptiles. She also moved her mother and father to Tennessee her 20-year-old son. She and her husband love the pride and family environment of Tennesseans. Her hobbies are horseback riding as much as possible, training her dogs, exploring new places, and spending time with her friends and family.

Erica R.


Erica has been a receptionist for 11 years and enjoys working alongside animals! For as long as she can remember she has always had multiple species of pets from cats/dogs to Koi Ponds. Erica currently has one cat, a hedgehog, and three rabbits. She could not imagine living without the companionship of pets! Erica is an alumnus of Northeast State Community College. In her free time, she enjoys spending time with her granddaughter, working in the yard, and antiquing.

Susan H.

Reception/Veterinarian Assistant

Susan has been working in the veterinary field for 24 years. Susan takes pride in giving the best care to each pet as if they were her own. When she is not caring for patients, Susan enjoys hiking, cooking, baking, going for bike rides, and spending time with her family and friends.

Kingsport Veterinary Hospital - photo coming soon
Tiffany V.

Kennel/Veterinarian Assistant

Tiffany has lived in Tennessee for the past 9 years. She is married and has several fur babies 1 dog named Tyson and one cat named Juniebee. She has volunteered at many different animal shelters, horse therapeutics, and even job shadowed veterinary medicine. She is currently enrolled in Penn Foster to become a veterinary technician. Her goal is to become a veterinarian and open up her own business one day. She enjoys spending time with family and friends outside of work. She also enjoys being outdoors.

Chelsie C.
Reception/Veterinarian Assistant

Chelsie has been working in the veterinary field for the last 6 years. She is currently working to complete the veterinary technician program at Pen Foster. Chelsie has always had a love and passion for all animals. She strives to treat every patient as if they were her own. By using Fear Free handling and building bonds with patients, she strives to make every visit as stress-free as possible.

When not working, Chelsie stays busy with her three daughters. She also has three dogs, two cats, a horse, and a turtle that keeps her busy. In her free time, she enjoys horseback riding, hiking, and spending time with her family.

Kingsport Vet Hospital - Lindsay
Lindsay P.

Veterinary Assistant

Lindsay attended Sullivan Central High School and is currently attending Penn Foster. She has been working in the veterinary field for the last year and a half. She takes pride in making sure her patients are well taken care of and learning all that she can to help her veterinary team and patients.

Lindsey loves spending time with her husband and pets. She enjoys playing and listening to music and occasionally playing video games with friends or reading.

Jamee A.

Veterinarian Assistant

Jamee attended Northeast State University, and he is currently attending Penn Foster. Jamee treats every patient as if they were his own pet. Making sure to make them as comfortable and loved as he possibly can. Jamee can’t wait to keep helping animals for the rest of my life.

Jamee loves taking his dogs out hiking and on adventures. He also enjoys playing soccer and golf when he can.

Brittnay P
Brittany P.

Veterinary Assistant

Brittany has been working in veterinary medicine since 2010. The part she loves most about Veterinary Medicine is making a difference in the lives of pets and their owners.

Brittany attended Northeast State University. She loves spending time with her kids at home on their farm. Brittany’s husband and family-run beef cattle and Brittany loves getting to see her kids learn and grow up the way we have been blessed to.

Kingsport Veterinary Hospital - photo coming soon
Korette M.

Bio coming soon!

Brittnay P
Alanna D.

Alanna Dingus is a Licensed Veterinary Technician at Kingsport Veterinary Hospital. She lives in Nickelsville, Virginia. She is originally from Ashe County, North Carolina but graduated from Lincoln Memorial University’s Veterinary Technician Program in 1992, where she met her now husband, Bill, and settled on his family’s farm in Nickelsville. They have three children, Lenora, Emma, and Abel. Alanna shares her life with lots of animals. She has three dogs, five cats, rabbits, chickens, goats, alpacas, horses, and cattle. Alanna has been a permitted wildlife rehabilitator in Virginia since 1994, so there is a revolving door of all kinds of wildlife that she cares for and returns to the wild. When not at work, she enjoys planning community events, all outdoor recreation with her family, gardening, and watching her kids play sports. Alanna’s favorite part of being a technician is that you never know what to expect in a day’s work. It is always exciting and challenging. Her top priority is helping pet owners feel like their pets are getting the best care.