Providing Quality Care for Your Loved Ones is Our Passion

We have been providing progressive, high quality medicine to our customers since 1956. We are proud to be a privately-owned, small business. We are currently taking new clients! Contact us if you are interested.

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Team members

Our Doctors

Bill Gunther

Dr. William Gunther

Dr. Gunther took over ownership of Champlain Veterinary Clinic from Dr. Larry Larrow in 1995. Senior-most veterinarian on staff. Received his Doctor of Veterinary Medicine at Michigan State University in 1983. When not at work, Bill enjoys playing his guitars, taking cruises, and spending time with his wife, Elaine.

Sarah Marak

Dr. Sarah Marak

Dr. Marak moved to Vermont from Missouri in August 2017 with her husband, Paul. She became a co-owner of Champlain Veterinary Clinic in April 2020. Sarah received her Doctor of Veterinary Medicine at the University of Missouri in 2015. She is an avid runner and hiker in her spare time and also enjoys triathlons and CrossFit. Since moving to Vermont, Dr. Marak has completed two Half-Ironmans. She loves walking her two dogs, Bandit and Sirius, as well as sneaking a few belly rubs from her two cats, Mad-Eye and Grindelwald.


Dr. Sonya Zehle

A life-long Vermonter, Dr. Sonya grew up in Essex and went to UVM. She accomplished her life-long dream of becoming a veterinarian by graduating from Michigan State University College of Veterinary Medicine. She is grateful to be practicing medicine in Vermont and has a special interest in behavioral and internal medicine and establishing long lasting relationships with clients. Outside of the clinic, Dr. Sonya enjoys spending time with her family and exploring the outdoors.

Our Staff

Alice II


Alicia has been with us since 2020. When not at work, she loves spending quality time with her husband, Mark, and her six kids. She also enjoys walking with her dogs, Oreo, Finn, and Bean. She can frequently be found in her garden, at the swimming hole, or at the gym.



Casee is a native Vermonter born and raised on a dairy farm in the NEK. She has been in the veterinary field for over 15 years as a front desk team member. She has two darling senior cats at home named Walter and Izzy, and is excited to add a French Bulldog puppy to her pet family! When not found at the office she enjoys cooking, music, writing and traveling with her loved ones.



Mallory started at Champlain Veterinary Clinic in 2020. When not at work, Mallory loves spending time with her family and pets, painting, and cooking. She and her husband have two dogs and two cats, keeping them very busy at home.

Grace Farrar


Grace previously worked in shelter medicine for 3 years before joining our team at the tail end of 2021. She discovered her biggest passion is caring for and helping animals. Grace is currently studying to become a certified veterinary technician and has completed her Fear Free Certification. In her free time, she loves photography, trail riding with her horses, attempting to read with her cats, hiking, and fishing.

Micaela Ballard-1


Micaela has worked at Champlain Veterinary Clinic since July 2022. Currently, she is studying to become a certified veterinary technician. Micaela has previously worked in the medical field with humans but discovered that caring for animals is her passion. Micaela resides in Swanton with her daughter, Cecilia, and her two dogs, Brewer and Lettie. In her free time, she enjoys reading, playing with her daughter, and keeping her dogs out of trouble.

Kathy profile pic


Cathy has been working at Champlain Veterinary Clinic for 30 years, initially working with one of the founders, Dr. Larry Larrow. She enjoys working with all the creatures, great and small, but is especially fond of cats. In her spare time, Cathy loves gardening, walking her Dalmatian, Tristan, and spending time with her family.



Originally born and raised in California, Bailey moved to Vermont in 2018. Bailey had previously worked in large animal medicine for two years before joining our team in early 2023. She found her passion for animals at a young age, while growing up on her family’s ranch, helping her grandmother care for their many kinds of livestock. When not at work, Bailey enjoys skiing at Smugg’s, going to the gym, and spending time with her fiancé Caleb, including their two dogs, O’Malley and Beretta .


Nicole has been a veterinary technician for over 15 years. She is a graduate of Vermont Technical College’s Veterinary Technician program. She is a life long Vermonter and her love for animals was fostered growing up in the Westford, Vermont countryside surrounded by domestic and wild animals. In her spare time she can be found gaming, reading, biking, watching movies, or just hanging out with family and friends.


Mashed Potato

Our newest feline member and donor of blood. He never lets the staff forget that he is the keeper of the food bowl.

Payment Options

We Accept Multiple Payment Options

Payment is due at the time services are rendered. Unfortunately, we do not currently offer payment plans. We do accept a variety of payment options such as cash, credit card, and CareCredit.