Meet our amazing veterinarians!

Dr. Marshall Kohr

Hospital Director/Veterinarian/Senior Partner

Dr. Kohr's Bio

During high school, Dr. Kohr worked on a farm and developed a strong admiration for the individuals he worked with. He searched for a profession that allowed him to work outdoors and contribute to the livestock industry—a career in veterinary medicine was the perfect answer!

Marshall grew up in Millersville, Pennsylvania, in agriculturally based Amish Country. In 1985, he started veterinary school at Colorado State University, graduating along with his classmate and future business partner Dr. Darren Lynde in 1989. While Dr. Lynde returned to his hometown of Gillette, Dr. Kohr practiced in a livestock clinic in Bridgeport, Nebraska. Two years later, he reconnected with Dr. Lynde and moved to Gillette, where the pair started their own practice in the spring of 1991.

Professionally, Dr. Kohr is interested in the diagnosis and treatment of equine lameness. He also enjoys the challenge of equine reproduction. He is proud of all the different perspectives, skills, and personalities the staff of the Animal Medical Center bring and is always excited to come work with such a great group of people.

Marshall is married to his wonderful wife, Lynn, who Dr. Kohr says is one of the best horsemen in the Rocky Mountain region. He also has three children, who are all attending University. He loves watching his wife and kids compete in barrel racing and attending his kids’ other sporting events. Dr. Kohr recently retired from service in the Wyoming Army National Guard as a Colonel!

Dr. Darren Lynde

Veterinarian/Senior Partner

Dr. Lynde's Bio
Before becoming a veterinarian, Dr. Lynde had a few fields of interest in mind: working with people, working in the medical field, or caring for animals. He then realized that being a veterinarian combined all three!

Darren’s family has lived in the Gillette area since the early 1900s when his grandparents decided to homestead the land in Campbell County. Dr. Lynde attended the University of Wyoming for his undergraduate studies before being accepted to Colorado State University’s Veterinary School. After obtaining his veterinary degree, he returned to his hometown of Gillette, where he worked at another clinic until he opened the Animal Medical Center along with Dr. Kohr in 1991.

Every day, Darren heads to the clinic excited because he knows that each day will be different. He especially likes internal medicine cases and is proud of the recent advances in dental care that allow him to stop undetected pain and infections for his patients. He especially enjoys continuing education because it allows him to stay on top of the latest techniques, theories, and practices. Providing the most state-of-the-art care to his patients is Darren’s top priority.

At home, Dr. Lynde lives with his wife of 24 years, Kim. They have two children: Garrett, 19, possibly the biggest Broncos fan in Gillette, and 17-year-old Lauren, who is passionate about dance. The family has collected rescued pets over the years, including their current fourteen-year-old terrier mix, Stella.

In his spare time, Darren enjoys fly fishing, ice fishing, and trolling, which he started very young with his father and grandfather. He also enjoys reading history and staying engaged with news and happenings.

Dr. Rachel Young


Dr. Young's Bio
Growing up on a hog farm in Ohio, Dr. Young has always been around animals. Since she was a young girl, her mind was made up to become a veterinarian. She never wanted to do anything else, and her hard work and dedication paid off— now she’s a veterinarian at the Animal Medical Center.

Rachel spent four summers working at a guest ranch in the Bighorn Mountains outside of Buffalo, Wyoming. She absolutely loved the area and started to look for a veterinary clinic nearby. In July of 2013, she started at the Animal Medical Center. Working primarily as one of Animal Medical Center’s after-hours veterinarians, she is grateful to help animals and their owners during difficult situations.

Outside of work, Dr. Young enjoys horseback riding and hiking in the mountains. She also loves photography and scrapbooking and likes to read and write when the weather isn’t agreeable.

Dr. Brad Powell

Associate Veterinarian
Dr. Powell's Bio
For as long as he can remember, Dr. Powell wanted to be a part of the agricultural industry. He realized that veterinary medicine was a great way to combine his professional interests with his love of animals. Brad grew up in Texas and attended Abilene Christian University to obtain his bachelor’s degree in Animal Science. He went to Texas A&M’s College of Veterinary Medicine for his veterinary degree and worked at a practice in Abilene for two years after graduation.

In the Fall of 1999, he joined the team at the Animal Medical Center as an Associate Veterinarian. Dr. Powell enjoys the challenge of jumping from one species to another as a mixed-animal practitioner. He’s especially passionate about equine lameness and equine dentistry cases.

Brad has been married to his wife Melissa for over 30 years. Together, they have three children: Kolten, who graduated from the University of Wyoming and serves along with his wife Katie, as a campus minister at the University; Brenna, a graduate of the University of Wyoming and now an employee there; and Mason, a student at Montana State Billings who plays baseball for the Yellow Jackets. Dr. Powell’s interests outside of veterinary medicine include fly fishing, hunting, reading great books, coaching youth sports, and learning about history. Brad considers himself a life-long student and learner.

Dr. Diane Ernst

Associate Veterinarian

Dr. Ernst's Bio
Having grown up in Gillette, Dr. Ernst decided in the sixth grade that she wanted to be a veterinarian. She never grew out of it and now serves as an Associate Veterinarian at the Animal Medical Center!

Diane attended veterinary school at Washington State University. After practicing in Glasgow, Montana, she joined the Peace Corps for three years. After that, she practiced in Belt, Montana, before returning to her hometown of Gillette. She joined the team here at the Animal Medical Center in September of 1996.

As a vet, Dr. Ernst loves working with kittens and puppies and helping to make their first visits not so scary. She also enjoys offering training and care tips to owners to ward off potential behavior problems.

Diane enjoys reading, riding horses, singing in the community choir, and helping out on her friend’s ranch in her free time. She also has two dogs of her own, both adopted from the local shelter: Dodge, a long-haired Border Collie, and Boots, a short-haired Border Collie. One of her cats, Ember, came from our local shelter, and the other Talli was rescued as a tiny kitten from a feral litter.

Dr. Susan Lucas

Associate Veterinarian
Dr. Lucas' Bio
Helping out with the animals inspired Susan to become a veterinarian herself when she got older! After two years of pre-veterinary medicine studies at North Dakota State University in Fargo, Dr. Lucas was accepted into veterinary school at Kansas State University. While practicing in North Dakota at a mixed animal practice, Dr. Lucas realized she wanted to be close to the mountains, so she came to Animal Medical Center in Gillette in 1992.

At home, Susan has several pets of her own: three Sussex spaniels, a Scottish Fold cat, and a desert lynx cat. She’s been training and competing in obedience with her dogs for many years now. Dr. Lucas also enjoys hiking in the mountains with her dogs and has even been on several overseas trips for long-distance hiking.

Dr. Scott Linford

Associate Veterinarian
Dr. Linford's Bio

Dr. Linford started at AMC as an Associate Veterinarian in July 2018. He attended both Utah State University and Kansas State University, studying veterinary medicine and ultimately becoming a DVM. He chose to work in veterinary medicine because he enjoys the challenge of diagnosing problems and then surgically correcting them. His favorite part of working in veterinary medicine is the people he works with, their supportive approach to patient care, and the fact that they put the patient ahead of themselves.

Dr. Linford and his wife Trish have four adult children. Tate works in management and raises Labradors, Alysa (Dr. Core) practices medicine at Mayo Clinic –Phoenix, Sarah is a UW graduate, and Colin is studying engineering and playing football. Outside of work, he enjoys ranching, raising bulls for sale to commercial and seed stock operations, and raising stock dogs to help with the cattle – all the kids are gone, so he and Trish need all the help they can get!

“I think it’s easier to find a solution than look for division. In the long run, we all want the same thing.”

Dr. Rhonda Hull

Associate Veterinarian
Dr. Hull's Bio
Dr. Hull started at AMC as an Associate Veterinarian in June 2019. She did her undergraduate work at California Polytechnic State University (Cal Poly), San Luis Obispo, where she graduated with an Animal Science BS, Equine Science Minor. She then went on to graduate school at Kansas State University, studying veterinary medicine and ultimately becoming a DVM.

She chose to work in veterinary medicine because she has always been interested in medicine and wanted to help animals and humans. Being a veterinarian seemed like the perfect fit! Her favorite part of working in veterinary medicine is getting to know the individual families and seeing the animals go home happy and healthy. She loves working with all species, especially horses.

A fun fact about her is that she managed a swine farm for about two years and has a special appreciation for pigs. Dr. Hull’s family lives in Southern California and Arizona. She has three siblings, five nieces, and one nephew. Outside of work, she loves the outdoors, whether it’s hiking, playing sports (wakeboarding and volleyball are her favorite), riding her motorcycle, or riding horses.

Dr. Turnbough

Associate Veterinarian

Dr. Turnbough's Bio
Dr. Turnbough went to undergrad at the University of Wyoming, where she received her bachelor’s degree in Animal Science with a focus on Veterinary Science. She toured Colorado State University and Washington State for Vet school and chose Washington State University. She chose veterinary medicine because she felt like she could make a difference in herd health and individual animal medicine.

Her favorite aspect is helping owners to give their pets long, healthy lives and assisting owners in agriculture maximize herd potential. Her coworkers would describe her as hard-working, determined, caring, easy and fun to work with, spunky, and a “warm, wonderful person.”

Dr. Turnbough and her husband, Jerett, have two fur-babies, one dog and one cat, and a human baby on the way. She has three brothers – one older and two younger brothers. Her parents have a ranch in Moorcroft, where she grew up. Outside of work, she enjoys helping her parents on projects on their ranch. She also enjoys exploring new places and going fishing with her husband when they can.

Dr. Connor Tageant

Associate Veterinarian

Dr. Tageant's Bio
Dr. Tageant received his B.S. in Animal Science and Doctor of Veterinary Medicine from Louisiana State University and has a strong interest in science and animals. After graduation, he worked in Eastern Idaho. His favorite aspect of working in veterinary medicine is mixed animal practice because you get to do so many different things. His coworkers would describe him as respectful and hospitable. Both of Dr. Tageant’s parents live in Louisiana, and he has a younger brother who is in medical school. He enjoys spending time with family and friends and anything outdoors, especially swimming.