Dr. Addie Felten

Addie Felten

Dr. Felten grew up in Eastern Iowa on her beef family farm. She was highly involved in every aspect of the farm with a particular interest in the cows. She attended Iowa State University and achieved a bachelors of animal science in 2012. She continued her education at Iowa State University graduating from veterinary school in 2016 with honors. She spent the following year as a veterinary intern at Tufts University continuing to develop her skills and experience in large animal medicine with a focus in dairy medicine. Her areas of interest include calf and heifer management as well as general herd health. 

Dr. Nicole Costello


Dr. Nicole Costello grew up on a small family farm in rural Eastern Iowa where she developed a passion for dairy and swine. She graduated from Iowa State University in 2014 with a bachelor’s degree in dairy science and again in 2017 with a DVM. In 2017 Nicole graduated from the University of Iowa with a master’s in public health. Her practice interests include transition cow management and all things public health. In her free time Nicole enjoys biking, gardening and spending time outdoors with her husband, Matthew and dogs, Annie, Chester and Ollie.

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Dr. Richard Korthauer

Dr. Richard Korthauer grew up in the hilly terrain of southeastern Minnesota and naturally gravitated to the winding roads and hills surrounding Mondovi.  He received his D.V.M. degree in 1983 at the University of Minnesota, and is a long suffering Gopher fan!  He began his career in a dairy practice in Colby, WI and moved to the Mondovi area in 1985, where he and his wife, Margaret, raised three children.  He enjoys the challenges of large animal medicine and the interactions with clients, both on small family farms and larger enterprises.  Travelling, woodworking, and fishing are among his hobbies, as well as a wide range of outdoor activities including managing a woodlot and fruit orchard, prairie restoration, making maple syrup, and gardening.


Derek Lieffring

Dr. Derek Lieffring

Dr. Derek Lieffring grew up on a small dairy farm in Arkansaw, WI.  He graduated from the Durand School District in 2007 and attended the University of Wisconsin-River Falls where he received his bachelor's degree in Dairy Science in 2011.  He was accepted into the University of Minnesota College of Veterinary Medicine where his main focus was large animal species.  Upon graduation in 2014 he obtained his first job at a bovine practice in Cashton, WI.  In order to be closer to his hometown, Derek joined Mondovi Veterinary Service in 2015.  His main practice interests include fresh/transition cow management, calf health, and reproduction management.  In his free time Derek enjoys spending time with his friends and family, bow hunting for whitetail deer, fishing, and traveling to new places.  Derek hopes to settle in to the Mondovi area long term and manage his own small hobby farm.