Veterinary Service, PLLC


About Us

Will Oliver, DVM graduated from VA Tech with a Bachelor’s Degree in Animal Science. He received his Doctor of Veterinary Medicine from VA-MD Regional College of Veterinary Medicine in 1994. Dr. Oliver practiced for five years in Nebraska and Montana as an associate veterinarian in mixed practice.  In 1999 he opened Chuteside Veterinary Service as a practice focused on large animals.  In his personal time,  Will enjoys hunting, riding the backcountry horseback, pack trips and canoeing with his family.

Chelsey Petz, DVM graduated from Washington State University with her Doctor of Veterinary Medicine in 2012. Prior to attending vet school, Dr. Petz graduated from Montana State University with a Bachelor’s Degree in Biology and spent her summers fighting fires. Recently, Chelsey completed her certification for Acupuncture through Colorado State's Veterinary Program, CuraCore and is excited to offer acupuncture as another tool to help our patients. Chelsey enjoys hiking and camping with her husband Justin and their two children Forrest and Hazel.

Heidi Oliver, Business Manager graduated from VA Tech with a Bachelor’s Degree in in Agricultural Economics and a Master’s of Business Administration.  Heidi has been part of Chuteside since it opened in 1999.  When not at work, she spends time with her children including their activities, riding in the backcountry, biking, listening to christian music and reading.  

Kristen Bailey, CVT received an Associate of Applied Science in Veterinary Technology from the College of Southern Idaho- Twin Falls and a Bachelor’s Degree in Animal Science from MSU- Bozeman. Kristen worked as a Vet Tech at Chuteside Vet from 2003-13. In 2008, she became an UGC Certified Carcass Ultrasound Technician and now that is her roll at the clinic.  Kristen now resides on the family ranch in Dell, MT with her husband and 3 children.
Maddie Korthas, Veterinary Assistant joined the Chuteside team in 2020 after graduating from the University of Nebraska- Lincoln. Her passion for the beef industry led her to Chuteside with hopes of making a difference in the agricultural community. In her spare time, Maddie enjoys the great outdoors, chasing cows on horseback, and spoiling her Aussie, Oakley.  

Amy Grenier, CVT received an Associate degree of Animal science in Veterinary Technology from Becker College. Moving to Montana 3 years ago from the east coast after spending a few summers Guiding Dude and Pack Trips outside Yellowstone Park. Always having a passion for large animal medicine, Amy enjoys being able to contribute to the agriculture industry and community. In her off time, she enjoys riding horseback in the backcountry, hiking, and snowboarding. Her crew consists of her 2 horses Shiloh, and Black Jack Betty, and Border Collie pup Goose.

Alexis Berry, Veterinary Assistant graduated from Montana State University with a Bachelor’s Degree in Animal Sciences with a concentration in Equine Science. She joined the Chuteside team in 2022 to expand her experience in the broad spectrum of large animal work and the agricultural industry as a whole. When not at work, Alexis enjoys hiking and camping, horseback riding, and painting.

MSU Students, throughout the year we welcome student's in; Vet Science, Animal Science, Ag Business, and other agricultural studies to gain experience with us. These students learn about animal management, animal care, injections, drug uses, and much more. We enjoy their enthusiasm and eagerness to learn.