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Dr. Ryan Hammell

Owner, Veterinarian

     Dr. Hammell has been caring for the cattle, dogs, cats, and horses of NE Iowa and SE Minnesota since 2004 when he joined the staff of WVS. He is a 2000 graduate of the Minnesota College of Veterinary Medicine. His main veterinary interests include advancing dairy cattle reproduction programs, transition cow management, calf management, and small animal orthopedics.


     Dr. Hammell grew up on a dairy farm just a few miles North of Waukon, where his family raised and milked registered Holsteins until 1985. His family currently milks a herd of 250 grade Holsteins just South of Caledonia.


     Dr. Hammell is married to his beautiful wife, Dr. Jessica Hammell. They have three incredible children, Jack, Taylor, and Isaac, who have just begun showing calves and chickens at the fair. His household is also home to a Doberman, Annie, a 3-legged Teddy Bear, Gus, Tiger and Spots to add some feline flair, a frog, and an assortment of fish. When there is free time, which is not often these days, he enjoys biking, fishing, movies, visiting zoos with the family, and cheering on the Minnesota Vikings.


Dr. Kaitlin Marg

Associate Veterinarian

     Dr. Marg grew up on a small farm in rural, SE Minnesota with beef cattle, dairy and meat goats, alpacas, and many cats and dogs. After graduating from the University of Minnesota College of Veterinary Medicine in 2017 she started at WVS as an associate veterinarian. She likes working with all animals, but especially sheep, goats, llamas, and alpacas. At home, she has 1 dog, Rosie and 1 cat, Wally. In her free time, she likes traveling, hiking, baking, and hanging out with her family back on the farm.

Dr. Monica Wagner

Associate Veterinarian

A 2016 graduate of Iowa State University's College of Veterinary Medicine, Dr. Monica Wagner joined Waukon Veterinary Service in July 2018 after practicing at an AAHA-accreditated small animal clinic in La Crosse, WI. Dr. Wagner grew up South of Lansing, IA near Wexford. Her interest in veterinary medicine began after working for a local dairy producer as a young teenager. After high school, Dr. Wagner attended UW-Stevens Point where she received a Bachelor's degree in biology with a minor in chemistry. In veterinary school, Dr. Wagner focused on production animal and equine medicine. Like most at Waukon Veterinary Service, Dr. Wagner has several pets: "Waylon" the vizsla, "Liam and Willie", the cats, and "Skyler" the horse. In her spare time, Dr. Wagner is usually horseback riding. Other hobbies include hiking, backpacking/camping, shed hunting, baking, and reading.