We are very proud to have a talented group of the very best veterinarians in our region. Please feel to contact them with any questions that you might have through our office. Each vet is accomplished in his/her practice and specializes in specific portions of veterinary medicine.

Graduate of University of Wisconsin-Madison
Dr. Hartwig and her husband, Scott are the current owners of Delavan Lakes Veterinary Clinic, which was established in 1979. Dr. Hartwig has a special interest in ultrasonography, echocardiology, rabbit medicine, and surgery.
Dr. Hartwig also volunteers her time and services to Fellow Mortals, a wildlife rehabilitation center, and is an official veterinarian for the House Rabbit Society of Wisconsin.
In their free time, the Hartwigs enjoy their children and family. Their pets include two Australian Shepherds named Josie and Jackson, a Welsh Pembroke Corgi named Bonnie, and their cat Wheezy. On their farm, they also enjoy their horses, especially their three Appaloosas.

Graduate of University of Wisconsin-Madison
Dr. Jens has been with Delavan Lakes Veterinary Clinic since 1999. She has extensive training in cytology and a special interest in internal medicine. In 2008, Dr. Jens attended the University of Tennessee to study canine rehabilitative medicine. Later that year she founded Madison Canine Rehabilitation.
Her husband Bruce is also a veterinarian and hospital administrator in Madison. Their pets include Mary –a spunky Boston Terrier, and 2 cats – Icabod and Gimpy. Dr. Jens volunteers at Ronald McDonald House and enjoys reading, traveling, and visiting wineries.

Graduate of Iowa State University
Dr. Peterson joined our staff in 2006. He has a special interest in soft tissue and orthopedic surgery.
His family includes wife Jelena, a Yellow Lab named Tinker, and a cat named Chewie.
In his spare time, Dr. Peterson enjoys home improvement projects, woodworking, and volunteering with Habitat for Humanity.

Graduate of University of Wisconsin-Madison
Dr. Lee is a 2001 graduate of UW-Madison. Before joining Delavan Lakes Veterinary Clinic, she spent seven years as a mixed animal doctor in Janesville. Dr. Lee enjoys soft tissue surgery and preventative medicine, but wishes to pursue further study in veterinary herbal medicine.
Her family includes husband David, Charlie – a Welsh Pembroke Corgi, Ginger, their Labrador Retriever, and numerous farm animals. In her free time, Dr. Lee enjoys gardening, farming with draft horses, baking, antiquing, and amateur photography.