We’re solely dedicated to your pet’s health.
Led by Dr. John T. Johnston, we’re here to provide ongoing wellness care to your pet. We hope you’ll trust us as a resource for your family for all stages of your pet’s life. Scroll down and get to know us!
Dr. John T. Johnston
Owner / Veterinarian
Dr. Johnston grew up in Lawrenceburg, Tennesse, and he is a 1972 graduate of Lawrence County High School. He attended The University of Tennessee at Martin receiving a Bachelor of Science degree in animal science in 1976. He met his wife, Bonnie Brooks, of Springfield, Tennessee, while in undergraduate school. They married in 1974 and have two daughters.
Bookkeeper and Employee Relations
What can I say? I am blessed! I wanted to be a veterinarian but ended up in home economics in college. While attending UT Martin, I met and married John Johnston in 1974. He received his DVM in 1980 from The University of Tennessee at Knoxville College of Veterinary Medicine. We moved to Springfield, the town I grew up in, bought this practice, and have been here for 40 years. We have two daughters, two son-in-laws, and four wonderful granddaughters! God has blessed us with wonderful people to work with and serve! Yes, I am blessed and so very thankful!
Dr. Daniel L. Hitch
Dr. Hitch (“Dr. Dan”) grew up in Westmoreland, Kansas. He graduated from Westmoreland High School in 1973 and attended Kansas State University. He received his Bachelor of Science degree in animal science in 1978. Dr. Dan practiced in Waihale Valley, Hawaii for five years. He and his wife, Mona, moved to Springfield, Tennessee in 1985 and joined our practice.
Dr. Georgia Parsons Quiles
Dr. Georgia Parsons Quiles was born and raised in Nashville, TN. She received her Bachelor of Science in biology and Doctorate of Veterinary Medicine from The University of Tennessee. Her interests in practice include internal medicine, anesthesiology, and dermatology. She lives in Springfield with her Army veteran husband, five perfect pups, and a very tolerant cat.
Dr. Josh Mixon
Dr. Mixon was born and raised in Hendersonville and graduated high school from Montgomery Bell Academy in Nashville. He graduated with a Bachelor of Science in biology from Sewanee: The University of the South and obtained his veterinary degree from The University of Tennessee in Knoxville. After graduation, Dr. Mixon practiced in the thoroughbred racehorse industry in Lexington, KY prior to moving back home to Tennessee. He joined Robertson County Animal Clinic in July 2019. He lives on a farm in Greenbrier with a bunch of dogs, a house full of chickens, and a yard full of hogs.
Dr. Tyler was born in Bowling Green, Kentucky and raised on a family farm in Adairville, Kentucky. He attended Western Kentucky University, earning a Bachelor of Science in agriculture in 2010, and his DVM from Auburn University in 2017. Dr. Tyler has been working as an associate veterinarian in Middle Tennessee since graduation. His professional interests include small animal internal medicine and surgery. His beautiful wife, Katie, is also a veterinarian. He also has a son, Jackson, and a Blue Heeler named Diesel. His hobbies include hunting, fishing, riding four wheelers, spending time with family on the farm, and enjoying the great outdoors.
Dr. Lee Raines
Dr. Lee Raines graduated from Alamo High School in Tennessee in 1977. He went on to attend Union University, then received his doctorate from The University of Tennessee College of Veterinary Medicine in 1985. He and his wife have three sons and two grandchildren. Dr. Raines joined our team in January 2018. His hobbies include hunting and taking care of his grandkids. When you come to visit our clinic, you will either find him in surgery or on the floor visiting with your pets!
Dr. Katie Simon
Meet our amazing team!
Jennifer is our practice manager and has been with us since 2017. She earned her bachelor’s degree in healthcare administration in 2012. Jennifer has worked in veterinary medicine for over 20 years. She grew up in Cross Plains, where she currently lives with her son, Patrick. She currently has a dog and two cats. In her free time, she loves to cook, read, and enjoy time with friends and family.
Savannah joined the RCAC team as a Veterinary Assistant in September of 2020. She lives with five dogs, including a crazy Australian Shepherd named Sadie. Savannah also rescued a sweet three-legged kitty named Dalton. In her spare time, she enjoys barrel racing and spending time with family.
April joined RCAC as a kennel technician in August 2002 and has worked her way up to lead veterinary assistant. She is married and has three children. Her and her family care for four cats and two dogs—a pit bull named Allie and a black Labrador named Stoeger. You can follow Stoeger on Instagram at Sir_Frederick_Stoeger!
Lauren joined the RCAC team as a veterinary assistant in June 2020. She lives with two spunky “mutt” dogs, Remy and Maggie. Lauren’s future plans include pursuing a degree in veterinary medicine. In her spare time, Lauren enjoys fishing, kayaking, and college football.
Shelby started her journey with RCAC in July 2020 as a veterinary assistant. She has always had a love for all creatures and medicine. In 2011, she competed with HOSA in the veterinary assisting category and was awarded second place in the state! She earned her bachelor’s degree in biology from the The University of Tennessee at Chattanooga in 2016. She has studied abroad in Tanzania, where she learned wildlife management and conservation. She is married and has a rescue dog, two senior cats, and two tiger salamanders.
Jenn has been at RCAC since October 2020, when her husband got stationed at Ft. Campbell. She recently graduated from Pima with an Associate in Veterinary Technology and is currently pursuing her license. They have 3 dogs named Sam, Freddy, and Blu, as well as a baby girl named Emma. Jenn has always had a passion for animals since she was a kid but her path took a different turn and she enlisted in the US Navy where she served from 2010-2014. She did a contract for the Army where she had the honor to work with some amazing K9s from the MarineCorp. She has rediscovered her passion to work with animals and she loves coming to work. Jenn also speaks Spanish which is very helpful in many ways.
Makayla was born in Memphis and spent her adolescent years there. She joined RCAC in April 2020. She moved back to Tennessee from Texas 2 years ago. She is currently in school to be a Licensed Veterinary Technician at VSCC, in hopes to further her career and education to become a Veterinarian. She has two dogs, Laila and Coco. She also has two rabbits, Juice and Spanky. She spends her free time bonding with family and binge-watching science-fiction shows and movies.
Holley joined the RCAC team as a Veterinary Assistant in March of 2021. She received her B.S. in Science from Austin Peay State University in 2018. Holley lives with four dogs — Brown Sugar (a Feist), Graham (a Dachshund/Yorkie mix), Shiloh (a Beagle), and Sparky (a Jack Russell Terrier mix). She also cares for three bottle-fed calves — Cardi, Ginger, and McFlurry. In her spare time, Holley enjoys fishing, hunting, and spending time with family and friends.
Samantha was born and raised in Reno, Nevada. She grew up with a variety of animals, participated in 4-H, and took part in dog shows as an exhibitor and volunteer. At a young age she knew she wanted to work in the veterinary field. After receiving her Associates degree at Truckee Meadows Community College in 2010 she received her veterinary technician license and spent her first 3 years in a small animal private practice. Samantha then went on to shelter medicine for the past 7 years. She recently relocated to Tennessee due to the military in her family.
Diane joined the RCAC team as a kennel technician in May 2020. She lives with two Boston Terriers, Bubba and Pebbles, and one Maltese, Lucy. Diane has previously worked with animals in boarding and daycare facilities. In her spare time, she enjoys spending time with her fur babies, as well as hanging out with friends and family.
Selena joined the RCAC team as a kennel technician in August 2020. She lives with two kitties, Paco and Mario. In her spare time, Selena enjoys spending time with her kids and family and playing with her kitties.
Tabitha joined RCAC in 2021. She and her husband, Shawn, have been together since 2011. They have 5 wonderful dogs, Lucy is a lab/pit mix, Diesel is a pitbull, Dice is a Min Pin/Chihuahua, Razor is a Wired-Hair Jack Russell, Sadie is a lab/red heeler/pit mix. In her free time, She loves being outdoors and spending time with her fur babies, and most of all, spending time with family and friends.
Linda joined the RCAC team as a receptionist in March 2020. Originally from Chicago, she moved to Robertson County in 2017. Linda lives with Nero, a feral cat rescued from the streets of Chicago, and Lady and Little Bit, mother and daughter dogs rescued from a barn. In her spare time, she enjoys keeping in touch with her six siblings, taking walks with her dogs, watching movies and documentaries, listening to jazz, trying new restaurants, and taking photos for Instagram.
Turbo joined RCAC as a resident cat in 2011 when he was just six weeks old. He was brought in by a thoughtful client who knew the clinic was looking for a resident cat. Turbo spends his days hanging out in the Groom Room, keeping an eye on the groomers to make sure they do a great job! His other favorite activities are sleeping and hanging out with his cat pal, Diesel.
Diesel joined the RCAC team as a resident cat in 2011. He was around seven weeks old and was found wandering around a parking lot. Diesel needed a home and we needed another resident cat—it was a perfect match! Diesel spends his days sleeping in sunny windows, hanging out with his cat-pal, Turbo, and generally causing trouble around the clinic.