Our Veterinarians
Dr. John Ayres
Dr. John Ayres is a 1991 graduate from the Western College of Veterinary Medicine in Saskatoon, SK. His origins from a Saskatchewan farm have contributed to his interest in rural mixed veterinary practice and the business management side of veterinary practice.
In addition to his duties as a partner veterinarian in Norsask Veterinary Group, John has been extensively involved with the Saskatchewan Veterinary Medical Association (SVMA) on a number of committees, including a stint as the president of the Association. He has recently just completed a 2-year term as Board Chair for Western Drug Distribution Centre (WDDC), a national veterinary supply distribution cooperative based in Edmonton.
Away from the practice, John enjoys spending time with his wife and two adult children,
Dr. Andrea Petruka
Dr. Andrea Petruka is one of the partners at Norsask Veterinary Group. She graduated from the Western College of Veterinary Medicine in 2008 and has been at Norsask ever since. She grew up in southeastern Saskatchewan on a grain and beef farm and she tries to remain involved with the family farm as much as she can. Andrea loves all aspects of mixed animal practice but her main interests in veterinary medicine include pain management, small animal surgery and small animal dentistry. She has taken numerous courses in orthopedic surgery and dentistry and is pleased to offer these services to our patients. In her spare time, Andrea enjoys cooking, gardening, motorcycling with her husband and spending time with her Basset Hound named Oscar and a Pug named Freddy.
Dr. Rodney Webber
Coming Soon
Dr. Aimee Hayden
Dr. Aimee Hayden is originally from southern Alberta. She is a 2004 graduate of the Western College of Veterinary Medicine. Aimee has had a great deal of experience in mixed practices in Alberta and Saskatchewan and is very interested in all aspects of practice. In addition to her veterinary career, Aimee and her husband own and operate a large cattle and grain farm. Dr. Hayden loves to spend time with her 4 growing children at home.
Dr. Jesse Vargo
Dr. Jesse Vargo graduated from the Western College of Veterinary Medicine in 2015. Before joining Norsask Veterinary Group in June of 2017, Jesse worked in a rural mixed animal practice. Jesse grew up on a mixed grain and beef farm in the south east section of Saskatchewan. Jesse’s special interest is in large animal medicine and surgery, although he enjoys all aspects of the mixed practice of veterinary medicine. Jesse currently lives in Warman with his wife and twin daughters, who keep him busy during his off hours. When he isn’t running after the girls Jesse enjoys playing hockey and slo-pitch as well as camping and being outdoors with his family. Jesse looks forward to seeing your animals, either in the clinic or on your farm!
Dr. Anne Hanbidge
Dr. Anne Hanbidge is a 2019 graduate of the Western College of Veterinary Medicine. She grew up south of Saskatoon raising purebred Maine Anjou cattle on the family farm. Growing up with animals, all shapes and sizes, fueled her desire to become a mixed animal practitioner. In her spare time, Anne enjoys volleyball, basketball, cooking, gardening, being outdoors, and spending time with her family.
Dr. Megan Carlson
I graduated from the WCVM in 2011. I have been working in Saskatchewan in a rural mixed animal practice ever since graduation. I enjoy all aspects of mixed animal veterinary medicine with special interests in ophthalmology and surgery. Although I am from the small town of Battleford, Saskatchewan and did not grow up on a farm I have a special interest in large animal including bison , horses and beef cattle. (I love getting out preg checking in the fall and semen testing in the spring.) When I’m not working, I’m training for 1/2 marathons, in the gym enjoying CrossFit, or outside cross country skiing. My husband and I have two goofy, slobbery bull mastiffs. We enjoy camping in the summer and sledding in the winter.
Dr. Alisha Triff
Alisha is from Regina, Saskatchewan and graduated from the Western College of Veterinary Medicine in 2023. Prior to getting into vet school, she obtained a Bachelor of Science in Biology and a Bachelor of Business Administration in Management from the University of Regina. In her spare time, she enjoys all things outdoors, especially hiking and camping. She currently lives with her cat, Ninja, but is hoping to expand that to include a dog that will enjoy adventuring just as much as she does. She is excited to start her career seeing a variety of species, both big and small.
Dr. Cassidy Sim
Dr. Cassidy Sim is a 2025 graduate of the Western College of Veterinary Medicine. She grew up on a small beef farm in southwest Saskatchewan, raising Charolais cattle which she proudly showed at 4-H events. Cassidy completed two degrees at the University of Saskatchewan before pursuing a career in veterinary medicine: a BSc in Agriculture and an MSc in Animal Science. Her MSc research interests centred on beef cattle grazing behaviour and forage performance. Outside of the clinic Cassidy enjoys travelling, swimming, and spending time at the lake with family. She is looking forward to a bustling career working with animals of all sizes!
Dr. Jacey Nyberg
Dr. Jacey Nyberg is a recent graduate of the Western College of Veterinary Medicine and is originally from Prince Albert, Saskatchewan. Growing up surrounded by animals of all kinds, she discovered her passion for veterinary care early on. She went on to earn a degree in Animal Bioscience at the University of Saskatchewan before entering veterinary school. Now beginning her career with Norsask, Jacey is excited to work with a variety of species and build meaningful relationships with pets and their families. In her free time, she enjoys traveling, spending time with her family, and relaxing with her partner and their cat, Jasper.
Registered Veterinary Technologists
Shannon, Registered Veterinary Technologist
Shannon is a Registered Vet Tech who joined the Warman Veterinary Clinic in the summer of 2019. She graduated from Kelsey SIAST in 2010. Shannon lives in Warman with her two sons, Daxter and Ryker and their frenchton, Olive. Shannon enjoys camping, being with family, travelling and exploring new places with her boys.
Emily Robinson, Registered Veterinary Technologist, Specialty – Nutrition
Emily is a Registered Veterinary Technologist that has worked at the Warman Veterinary Clinic since May 2014. She graduated from the SaskPolytech Veterinary Technology program in 2009. In 2018 Emily obtained her Veterinary Technologist Specialty in Nutrition from the American Academy of Veterinary Nutrition. Emily and her husband have a Weimaraner named Pluto (13 years) and two cats named Rascal (14 years) and Gizmo (9 years). Emily enjoys quilting, crafting, and gardening in her spare time, which is limited due to having two small children at home.
With her passion in nutrition she enjoys talking about pet food and loves to see every pet as they progress from babies, to adults, to seniors. Her favourite nutrition cases are the challenging seniors, wonderfully committed weight loss patients and in clinic medical patients.
Brittany Knight, Registered Veterinary Technologist
Brittany Knight is a Registered Veterinary Technologist at the Warman Veterinary Clinic. She joined the practice in September 2018. Brittany graduated in 2015 from the Kelsey SIAST Veterinary Technology Program in Saskatoon, SK. Brittany grew up on combination grain and beef cattle farm in SouthWestern Saskatchewan and loves going home and visiting family as much as possible. Brittany lives in Saskatoon with her husband Richard and their 2 cats. She enjoys kickboxing, reading and travelling and visiting family. She can’t wait to meet you and your pets!
Stephanie Fries, Registered Veterinary Technologist
Stephanie Fries is a Registered Veterinary Technologist that graduated from Lakeland College in Vermilion, AB in 2002. She started off at the Warman Clinic in spring 2013 and moved to the Rosthern Clinic in fall 2021. She currently owns 2 horses, 1 dogs, and 3 cats. She looks forward to seeing you and your pets, big or small.
Kristi Harms, Registered Veterinary Technologist
Kristi is a Registered Veterinary Technologist who joined the clinic in the summer of 2021. She graduated from the Animal Health Technology program at Olds College in 2012 and went on to work in private practice and then in various departments at the Veterinary Medical Center. Kristi has a strong interest in nutrition and aging pets: helping to find the proper supplements and therapies to keep them active and comfortable.
Kristi currently lives on an acreage outside of Warman with her husband Tim, where they run a small alpaca ranch called Underdog Alpacas. Their other pets include 4 dogs: Stella, Crash, Brandy & Daphne, 2 cats: Bruce & Clark, 2 horses: Digger & Louie and a flock of brahma chickens. When not occupied by the farm, Kristi loves to spend time at their cabin enjoying lake life.
Dria, Registered Veterinary Technologist
Dria is a registered veterinary technologist who graduated from Saskatchewan Polytechnic in 2017. Dria grew up on a beef farm just north of Duck Lake, and continues to spend many hours there during calving season. In her spare time you’ll see her riding her horses Coda and Sprite.
Ginger Rempel, Registered Veterinary Technologist
Ginger grew up in rural Manitoba and has always had a love for rural life and animals, most of all horses! She graduated from the Veterinary Technology program at Saskatchewan Polytechnic in June 2021, and has worked in mixed practice ever since. Ginger loves the variety that the job offers, as every day is different and has its unique challenges. She is passionate about patient care and making sure her patients are as comfortable as possible! In her free time, Ginger enjoys outdoor activities, horse riding, traveling, learning new skills, and spending time with her friends, family and cat Georgie!
Cadence Thompson, Registered Veterinary Technologist
My name is Cadence Thompson, I graduated in 2020 from Saskatchewan Polytechnic in the Veterinary Technology program. I grew up in Warman, and always knew I would have a career working with animals!
I now live in Hepburn with my husband, Brennan and our daughter Oakleigh. I am happiest spending time with family and friends, and being outdoors. I love to travel and explore new areas of the world. I am very excited to start my new adventure at Warman Veterinary Clinic and look forward to building relationships with all the clients and pets I cross paths with.
Tori Neufeld, Registered Veterinary Technologist
Tori graduated in 2019 from the Veterinary Technician Program in Saskatoon. She is currently living in Dalmeny with her husband, Devon, and dog, Echo. She grew up on a cattle farm west of Langham and enjoys going back home to help. Tori enjoys spending her free time with friends and family and enjoys going camping, and hunting.
Kaylee Haberstock – Registered Veterinary Technologist
Kaylee grew up in Dalmeny, Saskatchewan and has always had a passion for animals. She graduated in 2024 from the Lakeland College Animal Health Technology program. During school Kaylee found a passion for working with large animals and is excited to continue learning through Norsask. In her free time, she enjoys new adventures, going to the lake, traveling, and spending time with her dogs.
Nebria Thiessen – Registered Veterinary Technologist
Nebria is a veterinary technologist who recently graduated from Lakeland College and is eager to begin her career. She grew up in Regina Saskatchewan and previously worked as a vet tech assistant for 2 years before starting tech school. She loves working with small and large animals and has a special interest in hospitalization care! In her spare time she enjoys going to the gym, playing guitar and spending time with her dog Lenny. She looks forward to meeting you and caring for your pets!
Amanda Dumont – Registered Veterinary Technologist
Amanda recently graduated from Lakeland College in Vermilion, Alberta. Originally from the small town of Outlook, Saskatchewan, she now calls Saskatoon home. Amanda has always had a passion for animals, both big and small, and is excited to begin her career with Norsask. Outside of the clinic, she enjoys spending time with friends and family, reading, and being outdoors.
Cheyenne Jans – Registered Veterinary Technologist
Cheyenne is a Registered Veterinary Technologist who graduated from Lakeland College’s Veterinary Technology program in June 2025. She grew up on a beef cattle farm outside of Elrose, SK. Cheyenne loves both small and large animal medicine and enjoys monitoring anesthesia!
When not at the clinic Cheyenne enjoys reading, travelling, and being around her family (and cattle). She is excited to start her career caring for your animals!
Veterinary Assistants
Dani Ornawka, Veterinary Assistant
I am very excited to join Norsask Veterinary Group at their Rosthern location in November of 2022. I have worked in the vet industry for over 10 years as a vet assistant and couldn’t imagine it not being part of my life. My passion for animals and my huge interest in their health and well being surrounds me in both my work life and my personal life, as my husband and I run an Equine facility just north of Rosthern. My love for horses and riding keep me busy as well as our flock of sheep, 3 dogs and numerous feline friends!
Caitlin Brock, Veterinary Assistant
Caitlin joined Warman Veterinary Clinic as a Veterinary Assistant in the fall of 2023. She moved to Warman after graduating from the Veterinary Technical Assistant program at Olds College in 2022. She lives in Warman with her Fiancé, Layne and her dog and cat, Riggs and Jinx. When not at the clinic Caitlin enjoys spending time with her fiancé and pets, specifically going pheasant hunting with her GSP Riggs. She is happiest being outside adventuring or inside snuggled in a blanket cuddling her fur babies.
Office Staff Members
Rossey Janzen, Office Administrator
Rossey joined the Rosthern Clinic as a Veterinary Office Assistant in 2024. She grew up in Martensville before moving to Saskatoon to complete her Medical Office Administrative Diploma at the Saskatoon Business College in 2019. She recently has made Cudworth her new home. In her spare time, she enjoys fishing and camping. When she’s not fishing you can find her hanging out with her Rottweiler named Molly and her two cats, Ivy and Oliver. Rossey is excited to be part of the Norsask team and to meet you and your furry friends!
Katie Schubert, Office Administrator
Katie joined the Warman Clinic in 2023 as a Veterinary Office Assistant. Finally landing in Saskatchewan in 2018 she was able to call Warman home since growing up in British Columbia and growing her family in Alberta. Her spare time involves spending free time with her three dogs and two cats when not at the ice rink watching her boys play hockey! She is excited to be part of the Norsask team and meet you and your furry family members!
Stephanie Cantwell, Office Administrator
Stephanie Cantwell graduated from the Veterinary Office Assistant program at McKay Career Training in 2008. She taught the program for 3 years while also continuing to work in the veterinary medicine field.
She is married to her husband, Joshua, and they have three amazing children. She grew up in Martensville, SK and enjoys living on the prairies.
Her main hobby and passion has always been veterinary medicine but her second favorite is the great outdoors. She thinks that sitting around a campfire with family and friends is the perfect place to be.
Kendra Humphries – Office Administrator
Kendra joined the Norsask team in 2024 and is working at the Warman location. She was born and raised in southern Ontario and moved to Saskatchewan in the spring of 2024 to settle down with her husband, Aaron and their cat, Loki- who last year had to have not 1, but 2 FHO surgeries due to feline physeal dysplasia. Kendra has always been a huge animal lover, wanting to play or interact with as many animals as possible wherever she goes. She also grew up with many pets including: dogs, cats, fish & even a crested gecko. When not in the clinic, you can find Kendra spending time with her family, her cat Loki and dabbling in outdoor photography.
Louise Comtois – Office Administrator
Coming Soon
Kaitlyn Grevna – Office Administrator
Kaitlyn graduated from the Veterinary Office Assistant program in November 2018 and joined Norsask Veterinary Group in February 2025 as the Inventory Manager. This is her first year working in a mixed animal practice, and she is excited to expand her knowledge of large animals. Kaitlyn discovered her passion for the veterinary field when she brought home two hedgehogs that required extensive care and research. She currently resides in Martensville with her husband, dog, and five cats, and looks forward to meeting clients and their four-legged family members.
Chloe Lyons – Office Administrator
Coming Soon