MESA VETERINARY HOSPITAL - Key Persons


Christine Horst

Job Titles:
  • Veterinarian
Dr. Horst is from Golden, Colorado and is a mom to two awesome boys. She tries to mountain bike as much as possible and she loves bike racing, skiing, and spending time with her family. Dr. Horst loves enjoying the outdoors with her kids. They currently share their home with two Bernese Mountain Dogs, a cat, and a guinea pig. She attended Kent Denver School and upon graduation attended Colby College in Maine and graduated Phi Beta Kappa and Cum Laude. Dr. Horst then received her Doctor of Veterinary Medicine degree from CSU Veterinary School. She has been with the practice since 1999 and is a partner. Dr. Horst loves getting to know families and enjoys watching their pets grow old with them. "I love getting to see the role pets play in our lives, and being a part of that bond is everything to me!" - Dr. Horst

Hayley Dieckmann

Job Titles:
  • Veterinarian
Dr. Dieckmann grew up in Oakland, CA where her best memories were exploring the coast, riding horses and traveling with her family. She first came to Colorado for her undergraduate degree in Biology which she obtained through Colorado College. She fell in love with the mountains and began thinking of ways to return to Colorado. After college, she spent a few years teaching English in Korea, working as a zookeeper/vet assistant in a zoo hospital, and working with an equine veterinary practice. Her next chapter was vet school at University of California, Davis. Outside of the curriculum, she was an integral part of the fire response for the Veterinary Emergency Response Team (VERT) and continued expanding her interest and knowledge of zoo and exotic species. After Davis she matched with a small animal rotating internship at Wheat Ridge Animal Hospital and finally returned to Colorado! She now lives in Colorado with her husband, their dog Tater, their cat Ouray and their uromastyx lizard PD. She loves to backpack, hike, travel and eat food.

Julia Katzenbach

Job Titles:
  • Veterinarian
Dr. Katzenbach hails from a northwest suburb of Chicago and attended the University of Illinois for both her undergraduate and veterinary degree before joining our team in 2013. Her education includes a small animal rotating internship at Wheat Ridge Animal Hospital and an exotics internship at Colorado State University. "My favorite aspect of working at Mesa is bonding with amazing pets and their pet parents. I also enjoy performing surgeries and handling emergencies to protect pet health." - Dr. Katzenbach When she is relaxing and having fun, you will likely find Dr. Katzenbach taking full advantage of the Colorado outdoors by running and backpacking with her dogs. She also enjoys climbing and skiing.

Katie Lawrie

Job Titles:
  • Veterinarian
Dr. Lawrie was born outside of Toronto, Ontario. She attended Grand Valley State in Michigan on a swimming scholarship and completed a Bachelor's of Science degree in Biology. While applying to vet school she took a year off to work and spent about 3 months in South Africa working at West Coast National Park. She attended St George's University in Grenada, West Indies for her doctor of veterinary medicine degree, ultimately completing that degree at Auburn University in Alabama. She and her husband, who is also a veterinarian, moved to Colorado in 2023. Dr. Lawrie enjoys traveling, sewing and spending time outdoors in her spare time.

Kelsey Hamilton

Job Titles:
  • Hospital Manager
Kelsey grew up in Tupper Lake, NY and has been with Mesa since 2014. She has a bachelor's degree in biology with a minor in psychology. In 2018, Kelsey graduated from the Veterinary Management Institute, a program founded by AAHA in partnership with CSU Business School. "I am very passionate about fostering a positive, supportive, and service-focused team." When she isn't managing the hospital, Kelsey is spending time with her husband Mitchell and their two daughters. They have an animal pack that consists of two dogs and a cat named Dennis who thinks he is a dog. They enjoy spending time together outdoors. Kelsey loves hiking, reading, fly fishing, gardening, and sugar cookie art.

Samantha Kingett

Job Titles:
  • Veterinarian
Dr. Kingett grew up in Texas with a plethora of animals before attending Texas A&M University where she graduated summa cum laude. Colorado had always been calling after visiting multiple times as a child and so Dr. Kingett headed to Fort Collins where she graduated with her Doctor of Veterinary Medicine degree from CSU Veterinary School in 2015. After graduating Dr. Kingett had a brief but lovely stent in Bend Oregon, before returning back to Colorado. Dr. Kingett and her husband enjoy many outdoor activities, but she specifically loves trail running with her pitty mix Luna as well as going on dignified hikes with her older heeler mix, Oliver. Dr. Kingett also enjoys reaping the rewards of baking and has an obsession with reading/books.

Shelby Stephens

Job Titles:
  • Veterinarian
Dr. Stephens is originally from the suburbs of Houston, Texas. She obtained her undergraduate degree in Biology at Texas A&M University and went on to complete her doctor of veterinary medicine degree at Texas A&M University in 2021. She then promptly moved to Colorado to work as a mixed animal veterinarian in Glenwood Springs. Her love of small animal medicine led her to accept an associate position with Mesa Veterinary Hospital to help serve families of the Denver/Golden community. Dr. Stephens' special interests include fear-free handling of her patients, preventative care, feline medicine, soft tissue surgery and internal medicine. She is a certified feline friendly veterinarian through the American Association of Feline Practitioners and has a passion for providing comfortable, quality care to nervous kitty patients in particular. Dr. Stephens has a husky mix rescue pup, two cats and three hens at home.

Steve Batch

Job Titles:
  • Veterinarian, Co - Medical Director
Dr. Batch is originally from Helena, Montana, and grew up in the Golden area. He joined Mesa Veterinary Hospital in ...

Winter Keith

Job Titles:
  • Associate
  • Veterinarian