Our Staff

Dr. Kristine Butto-Brownlee
Veterinarian, Owner
Dr. Butto graduated from Colorado State University in 1993 with a DVM and also graduated from The Chi Institute in 2010 with a CVA. She has lived and practiced in downriver Michigan since 1995. She had two daughters, three dogs, five cats, a tarantula, and one Moluccan Cockatoo named Georgia. On her days off she enjoys taking care of her zoo, gardening, and baking.


Dr. Arianne Spiewak





Dr. Judy Duderstadt
Dr. Duderstadt graduated from Michigan State University in 2017 with her DVM. She has worked in the veterinary field since 2009 and looks forward to many more years treating patients and educating owners. She has a passion for animal rescue, and currently has a dog, two cats, two ferrets and a snake at home that her and her husband call family. She also enjoys continuing education so she can provide the best care to the animals she sees.



Mary Ortiz
Practice Manager and Licensed Veterinary Technician
Mary has been in veterinary medicine for 18 years and has been the practice manager of Cahill Veterinary Hospital the last five years. She is married and has a pitbull named Gunny and a green iguana named Jabberwocky. In her spare time she enjoys being outdoors and reading.



Chrissie Humphrey
Office Manager
Chrissie has been our office manager since Cahill Veterinary Hospital opened. She is married and enjoys boating and photography. She and her husband spend time in the upper peninsula when they are not working. Chrissie’s favorite part of working at Cahill Veterinary Hospital are the animals and the people she works with on a daily basis.



Robin Jarvis
Medical Records Manager
Coming Soon




Cat Karas
Licensed Veterinary Technician
Cat has been working in veterinary medicine for over 18 years. She shares her home with her two maine coon cats, Moshi and Gizzie. Cat works at Cahill Veterinary hospital because of the “great medicine and pain management as well as the advanced surgical procedures that they offer.” When not working you will find Cat making jewelry, designing costumes, sewing, painting or doing photography.


Mallory Gemus
Licensed Veterinary Technician
Mallory has been a licensed veterinary technician for seven years. From a young age she always knew she wanted to work in veterinary medicine and couldn’t imagine doing anything else with her career. She is married and has a son. They share their house with Libby the cat, Sir Hector the ball python and Athena Marconious Jane, the bearded dragon.


Colleen Kropog
Licensed Veterinary Technician
Colleen has been a veterinary technician for five years. She is married and has a plethora of young nieces and nephews. At home she has two dogs, Bagley and Frankie. In her spare time she enjoys antiquing, decorating her home, skiing, basketball and cooking. Taking care of patients and educating their owners are considered her strong passions. She likes working at Cahill Veterinary Hospital because she is allowed to utilize all her skills as a technician and feels the medicine practiced here is the best offered anywhere.


Jenny Roy
Veterinary Assistant
Jenny has been a veterinary assistant for 18 years. At home she has two dogs, Mississippi Queen and Smokie, both blue tick healers, a cat named Moe Moe, six guinea pigs and two rabbits. Jenny’s favorite part about working at Cahill Veterinary Hospital is the fact that she gets to take care of animals, helping them heal. She loves working with the staff and feels they are like her family. In her spare time she enjoys reading and spending time with her husband and teenage daughter.


Betsy Sickon
Veterinary Assistant
Betsy has been a veterinary assistant at Cahill Veterinary Hospital for over two years. She shares her life with her pitbull Betty. When not working, she enjoys being with friends, family and loves to golf.



Becky Caldwell
Veterinary Assistant
Becky has been working in veterinary medicine for five years. Her spare time is spent with family and reading. At home she has Books, a pitbull, and a cat named Katie. Her favorite part about working at Cahill are the people she works with and that she learns something new everyday.



Morgan Cassanova
Veterinary Student
Coming Soon




Josh Shoup
Veterinary Student




Julia Funds
Medical Records/Veterinary Assistant
Julia has been working at Cahill Veterinary Hospital for almost two years. She is married to her husband Gene and they share their home with Trinity, Eli, Armani, Quinn, gilbert, Phoenix, Princess, Thumper, Tanner and Sophie; all cats. She is the Founder of Chaucer’s Place, a senior cat rescue and sanctuary. The best part about her job is that she gets to work with and help animals.


Sue Shoemaker
Sue has been working in both human and veterinary reception for the past five years. She enjoys golfing, traveling, cooking and gardening in her time away from the hospital. She enjoys working at Cahill Veterinary Hospital due to the interaction with clients and her love of animals. She has a great respect for all the employees who work hard everyday to save patients, especially the doctors and technicians. She is married and shares her home with her two dogs, Josie and Sophia, as well as one cat, Somer.


Shelly Schonschek
Shelly has been a receptionist for over twenty years. She is married and shares her home with her dog Harmony, and her cat Skye. She enjoys working at Cahill Veterinary Hospital because she gets to meet interesting people, their pets and she feels the staff are great. When not working she enjoys cooking and reading.



Janice Gillies
Janice has been working reception in veterinary hospitals for sixteen years. She is happily married and has four adult children and four grandchildren. She enjoys sewing, scrapbooking, gardening and being a Nana in her spare time. She lives with her grandbaby pets, Buster, a chihuahua and Austin, a bearded collie. The best part about her job are the clients and their animals and being able to help them.


Alesia Donovan Manetta
Alesia has worked in the medical field since 2005; she is experienced as a Veterinary Assistant and Receptionist. “I love to learn as much as I can about this field. Being able to pass that knowledge on to clients, friends, and family is very rewarding.” Alesia is married with 3 sons, has a pit bull mix “Beau”, a Doberman “Lucy”, and cat “Leo”.



Julie White
Coming Soon




Safety Manager
Elsa is a 3-year-old German Shepherd and has been an employee at Cahill Veterinary Hospital for 3 years. She is our Safety Manager, sitting in her chair and observing all situations to step in if she needs to. Elsa is very protective of all the staff at Cahill but she also is the most loving, kind, and gentle girl there is. In her spare time she likes to play with her brother Ferris, a one-year-old German Shepherd. She also enjoys boating, flying in airplanes, rolling in snow, and performing every trick in the book.