Our Team
We are a group of highly trained professionals, drawing on years of specialized training and experience to deliver quality veterinary medicine to our clients and their animals.
Our Veterinarians
Nine veterinarians caring for cows, horses, sheep and goats: on farms, in barns and stables throughout the region.
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Dr. Jason Brownridge
Veterinarian, partner
With the practice since 2003
Dr. Jason Brownridge has enjoyed working with large animals for his entire career. He grew up on a dairy farm in Halton county. Through his youth involvement in 4H, he was able to work with horses, dairy and beef cattle, small ruminants, and rabbits. This affirmed his desire to become a large animal veterinarian. While attending the Ontario Veterinary College, Jason found he equally enjoyed working with horses and livestock. When a job was posted at the Milverton-Wellesley Veterinary Services, it seemed like a practice where he could continue to work with many large animals. He has remained at this practice ever since and has re-engaged as an owner since 2022. He currently focuses much of his professional time on equine medicine, including: lameness, sports medicine, reproduction, dentistry, and general medicine and surgery. He also coordinates the student placements at the practice, which prides itself in mentoring the next generation of large animal vets. Jason continues to serve as a co-leader of the Waterloo 4-H Veterinary Club, which has provided him the opportunity to share his knowledge and skills with aspiring youth of all ages. He currently lives on a farm in Bamberg with his wife and, two daughters. In his spare time, Dr. Brownridge enjoys horseback riding, camping, and playing hockey!
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Dr. Jeff Sommer
Veterinarian, partner
With the practice since 2004
Dr. Jeff Sommer graduated from the Western College of Veterinary Medicine in Saskatoon in 2001. Originally from central Alberta, Jeff worked in a mixed animal practice north west of Edmonton, before moving to Ontario in 2002. He spent another two years working at a clinic in Bruce County before joining the Milverton-Wellesley Veterinary Services in 2004.
Jeff has been a partner of the clinic since January 2010. Jeff is a mixed animal practitioner, focusing mostly on large animals, with a particular interest in dairy herd medicine.
Jeff lives in Wellesley with his wife Jen, three children Emma, Kate and Daniel, as well as a yellow lab named Rowdy. In his time away from work, he enjoys golfing, hockey, and travelling. Jeff is also involved in his church, as a representative on the Board of Missions at Holy Cross Lutheran in Kitchener. He has been on two mission trips to Nicaragua doing veterinary related work, and hopes to return again someday. -
Dr. Nicole Burcar
Veterinarian
With the practice since 2024
Dr. Nicole Burcar graduated from the Ontario Veterinary College in the Spring of 2022. She began her career at Blyth Veterinary Services. At Blyth she worked with cattle, both dairy and beef, sheep, goats and horses of various disciplines. She enjoys herd medicine and although not from a farming background has worked at several dairy barns throughout the years. She also developed an interest in equine medicine while working at a broodmare barn foaling out 35 mares a year. She is interested in continuing to service all large animal species and connect with the community.
In her spare time she enjoys cooking and gardening with her partner, Steve and staying active. She also dabbles in photography. -
Dr. Rick Knill
Veterinarian
With the practice since 2023
Dr. Rick Knill graduated from the Ontario Veterinary College in 1988 and joined Mitchell Veterinary Services in 1990. Rick’s expertise is in Bovine medicine, surgery, and Dairy Health Management. Rick achieved a certificate in Dairy Health Management from the Ontario Veterinary College in 2004. Rick has a small herd of Holstein cattle under the Knillgrove prefix. He is also leader of the Mitchell 4-H Dairy Club.
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Dr. Mark Jamieson
Veterinarian
With the practice since 2024
Dr. Mark Jamieson completed his DVM degree at the Ontario Veterinarian College in 2023 with a focus on food animal medicine. Prior to entering the DVM program, Mark completed a BSc in Biomedical Science at the University of Guelph and a Masters of Business Administration at Wilfrid Laurier University. He first became interested in bovine reproduction and health management in his second year of undergrad when he was introduced to large animal medicine by Dr. Jason Brownridge. Along the way, he worked for his father’s business in Kitchener, at a dairy farm in Rockwood and at the Canadian Food Inspection Agency. Mark spent a year working at another large animal practice before joining the Milverton-Wellesley team in May 2024. In his spare time, he enjoys pick-up hockey and watching the Pittsburgh Steelers and the Toronto Maple Leafs.
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Dr. Shannon Finn
Veterinarian
With the practice since 2018
Dr. Shannon Finn grew up in Baden and graduated from the Ontario Veterinary College (OVC) in the spring of 2018 and has been with our clinic since then. She works part-time and while she enjoys most aspects of rural practice, her areas of interest are dairy herd health, bovine and small ruminant medicine and surgery. She lives on a dairy farm outside of Millbank with her husband where they stay busy farming and raising their 3 young children. In her spare time she is a faithful book club member and plays the piano.
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Dr. Tanja Bihr
Veterinarian
With the practice since 2003
Dr. Tanja Bihr graduated from the Atlantic Veterinary College at the University of Prince Edward Island in 2002, and completed a one-year equine internship outside of London, Ontario, before she started at Milverton-Wellesley Veterinary Services.
Tanja’s family is in Riverview, New Brunswick, but she has come to love south-western Ontario and the people here, and has chosen to set down roots here. In her spare time, she is very much a fan of the outdoors and exploring the world. She enjoys hiking and travelling, as well as reading novels, watching movies, and spending time with friends. Tanja splits her time between treating small companion animals at the Wellesley Veterinary Clinic and working with equine companions for Milverton-Wellesley Veterinary Services. Tanja cares very much about the welfare, happiness, and well-being of her patients. -
Dr. Ally Langford
Veterinarian
With the practice since 2026
Dr. Ally Langford graduated from the Ontario Veterinary College in the spring of 2026 with a focus on Food Animal Medicine, and began her career with MW Vets in July of 2026. Prior to entering the DVM program, she completed her Bachelor of Science in Animal Biology at the University of Guelph, graduating in 2022. Ally grew up on a farm in Kerwood, ON where her parents cash crop, as well as run a bean processing plant and elevator. Growing up around animals & agriculture, as well as riding and showing horses in the hunter/jumper discipline for many years, Ally always knew veterinary medicine, more specifically large animal medicine, was the path she wanted to pursue. Ally absolutely loves the wide variety that large animal practice provides on a daily basis. She enjoys working with all species, and looks forward to building relationships with owners and producers around the community. Outside of work you can find Ally riding her own horse Jett, in the gym, reading, or spending time with family and friends.
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Dr. Bill Hazen
Veterinarian
With the practice since 1979
Dr. Bill Hazen graduated from the Ontario Veterinary College and has been a part of our team since 1979. Bill brought Equine Acupuncture and Chiropractic services to our team. Bill runs an organic farm with his family and has also taken time to serve with Vets Without Borders. In 2016, Bill was part of a team in Kenya that offered a walk-in clinic… for cows, at the Mbaria Market. The clinic was for the pastoralists who keep their animals on the move so they couldn’t visit them on farm. Over the course of a day, the team of vets saw more than 400 cows. In 2025, Bill was recognized as an Honorary Member of the Ontario Association of Equine Practitioners for making noteworthy and outstanding contributions to equine practice.
Our Clinic Team
Great veterinary care takes a great team! Our veterinary assistants and office staff work behind the scenes and on the front lines to keep things running smoothly, support our veterinarians, and make sure our clients and their animals feel well cared for.
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Carrie Siewert
Practice Manager
Carrie grew up in Wellesley and lived beside her grandpa’s farm, Ezra Jantzi, who called on Milverton-Wellesley Veterinary Services, way back in the 1970s. When Carrie met Dr. Earl Coxon, he told her he remembered going to Ezra’s farm because he fainted at the sight of blood.
Carrie graduated from Fanshawe College with a diploma in Business Information Systems. She joined our team in 2010 and now splits her work day between Wellesley Veterinary Clinic and MW Vets. Carrie lives in Wellesley with her family and enjoys spending time with friends, exploring Ontario, hiking, book club, and volunteering in her community. -
Christine Beuerman
Office Manager
Christine is the Office Manager at Milverton-Wellesley Veterinary Services, where she oversees the client care team and manages general administrative functions. With more than 25 years of experience in veterinary medicine, she brings a diverse background to the role. Before joining our practice, Christine worked at Mitchell Veterinary Services as an Inventory Controller, Receptionist, and Veterinary Assistant. These experiences gave her a strong understanding of clinic workflows and client needs, which she now uses to lead the administrative team, streamline operations, and support the overall success of the practice.
A lifelong animal lover, Christine grew up helping on her family’s beef farm near Monkton—a passion she continues today. At home, she and her husband, Paul, along with their children, Anthony and Makayla share their lives with two dogs, Reese and Reggie. -
Alisha Watson
Vet Assistant
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Chelsea Long
Vet Assistant
Chelsea completed a two-year Equine Massage Therapy program in 2020 and graduated from the Veterinary Office Administration and Veterinary Assistant program at the University of Guelph, Ridgetown Campus in 2021.
Originally from London, Ontario, Chelsea developed a passion for horses at a young age, beginning to ride at just six years old. By age ten, she had already trained and successfully shown her first pony on the Trillium Circuit.
While attending school full-time in Ridgetown, Chelsea began milking cows part-time in the evenings. Her interest in dairy cattle quickly grew, leading her to transition into full-time work on the farm, where she took on the role of Herd Health Manager.
After relocating from Lambton Shores to Brussels, Ontario to be closer to family, Chelsea joined the MW Vets team. She continues to stay connected to the dairy industry by milking part-time on weekends and leading the Calf Health Program at the clinic.
Outside of work, Chelsea enjoys spending time with family and friends, her Doberman Baden, and her cats. She also has a love for car shows, thrifting, collecting oddities, and traveling—especially visiting her sister in New Zealand.
The People & Moments That Make Us
From caring for animals and supporting our farming community, these are the people and memories that make MW Vets who we are.
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Dr. Ally Langford
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Dr. Nicole Burcar
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Dr. Nicole Burcar
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Dr. Nicole Burcar
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Dr. Jason Brownridge
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Dr. Jason Brownridge
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Dr. Jason Brownridge
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Dr. Jason Brownridge
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Dr. Jeff Sommer
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Dr. Shannon Finn
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Dr. Mark Jamieson
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Chelsea Long, calf health program
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Chelsea Long
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Dr. Bill Hazen with his wife Cathy and daughter Laura
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Dr. Bill Hazen
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Dr. John Hordyk, retired veterinarian
One Team. Complete Care. All Farm Animals.
From stables and hobby farms to dairy producers and commercial livestock operations, our mixed-animal veterinarians provide practical, personalized care for the animals that depend on you.