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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. 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 and Jane," the horses. In her spare time, Dr. Wagner is usually horseback riding. Other hobbies include hiking, backpacking/camping, shed hunting, baking, and reading.


Dr. Alli Westholm

Associate Veterinarian

Dr. Alli Westholm grew up in a small town in central Wisconsin.  She started as an associate at WVS right after graduation in 2021 from the University of Wisconsin College of Veterinary Medicine.  She enjoys working with all animals, especially calves. However, she is especially passionate about client education.  Dr. Alli is married and has four fur babies at home, a dog, El Capitan, and three cats, Sassafras, Ginseng, and Buckwheat.  In her free time, she enjoys cooking, gardening, and knitting.

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