Staff
Emma Dorshorst
Veterinary Assistant Emma is from central Wisconsin and is a recent graduate of the University of Wisconsin-Madison, where she earned a degree in Dairy Science. She enjoys interacting and serving the patients and clients of Castlerock Veterinary Hospital. With a background in livestock, Emma is heavily involved in her family’s dairy farm, Forward Genetics. She…
Jill Czerniak
Veterinary Assistant Jill has been in the veterinary industry for 7 years in mixed practice and emergency medicine. She joined Castlerock in 2025. She enjoys spending time with her animals. She has 3 dogs, a cat, chickens , quail and homing pigeons. On her off time she enjoys spending time outdoors hunting, hiking and gardening. …
Tori Martin
Veterinary Assistant Tori’s passion for animals started when she was a little girl growing up on a dairy farm. She lives with her husband Michael and they have 2 goats(Eugene and Billy), 4 cats(Chowder, Slinky, Smudge, and Boo), and 1 dog (Skye). In her free time, she likes to go up north, kayaking, gardening, cooking,…
Brooke Michalski
Veterinary Assistant/CSR Brooke joined the Castlerock team in June of 2025. Her initial inspiration to work in the field started at Marshfield Area Pet Shelter during high school. She has 3.5 years of prior experience working in veterinary medicine, and graduated from University of Wisconsin-River Falls in May of 2023 with a Bachelors of Science…
Bridget Boehning
Bridget received her veterinary technician degree from Madison Area Technical College. After several years managing a large pet/vet store and humane society she returned to central Wiscosin and has been working as a veterinary technician in a local small animal practice. Bridget’s passion in veterinary medicine is educating the clients on all their pets needs….
Kallie Villeneuve
Kallie joined the Castlerock team in May of 2024 with 3 years of experience in veterinarymedicine. She graduated from the University of Wisconsin-River Falls in 2020 with a Bachelor’sdegree in Animal Science and became a CVT in 2023. Kallie’s love for animals doesn’t stop atwork. Her personal pets include her dog (Skip), her cat (Archie),…
Lisa Barman
Lisa joined Castlerock in September 2023 with many years of experience. She grew up on a large dairy farm which helped her realize her passion for animas of all sizes early on. Her life journey has taken her to several different clinics working with both large and small animals. She currently lives in Marshfield with…
Olivia Anderson
Liv graduated from Madison Area Technical College in 2018 and received her certification that same year as a Veterinary Technician. Liv enjoys all aspects of small animal medicine, including surgery and time spent with clients. She has one dog, Greta and one cat, Gideon. In her spare time you’ll find her outside, hiking, kayaking and…
Kimberly Dolgner
Lead Certified Veterinary Technician Kimberly graduated from Globe University in 2016 with an Associate Degree in Veterinary Science. In the 8 years as a Certified Technician, she has worked in a Mixed Animal practice and Emergency Medicine. Kimberly enjoys traveling, gardening, and playing volleyball. She has 1 dog named Ruxie and 2 cats named Buddy…
Mariah Heindl
Mariah has been a Certified Veterinary Technician since 2014 and has worked in general practice as well as emergency medicine. She has special interests in nutrition, behavior and anesthesia. Mariah and her husband, Mike, share their life with their son and daughter and furry family members. Mariah loves learning everything veterinary medicine, movies of humor…









