Dan Nietz, DVM; Owner

Dr. Nietz is a native of Zumbrota, and is proud to be practicing in his home town.  He received his Bachelor's degree in Biology from Luther College in 1996, and is a 2001 graduate of the University of Minnesota College of Veterinary Medicine.  Dr. Nietz has furthered his veterinary education with additional training in orthopedic and soft-tissue surgery, and advanced dentistry.  He began working at ZVC in 2002 and has been owner of Zumbrota Veterinary Clinic since 2004. He lives in Zumbrota with his wife, Bretta. They are busy parents of 5 children.  In his spare time, he enjoys boating, snow and water skiing, wood fires, and training Goose the Golden Retriever. 

Cassie Quillen, DVM; Owner

Dr. Quillen is originally from southcentral Minnesota.  She graduated from Iowa State University with her Bachelor of Science in 2007 and her Doctorate of Veterinary Medicine in 2013.  Since graduation, Dr. Quillen has worked in small animal practices in central Iowa and southeastern Minnesota; becoming an owner of ZVC in 2022.  She is a member of the AVMA and the MVMA and has received additional training in dentistry and ultrasound.  Dr. Quillen's professional interests include preventative care and internal medicine.  In her free time, Dr. Quillen enjoys spending time outdoors with her husband and two children.  She has two dogs, a hound dog mix named Moxie and a Chihuahua named Lulu, and a Himalayan cat named Moo.

Kate Mathes, DVM

Dr. Mathes joins ZVC from her home state of Iowa, where she attended Morningside College, graduating in 2017 with a double major in biology and chemistry. Her next step was to Iowa State University, where she received her Doctorate of Veterinary Medicine in 2021. After practicing in a mixed animal clinic for a few years, she found her passion in caring for companion animals.  Dr. Mathes' professional interests include dermatology and internal medicine. In her spare time, Dr. Mathes enjoys spending time with her family and their ever-growing fur family.