Zumbrota Veterinary Clinic - Our Doctors Dr. Dan Nietz & Cassie Quillen

Zumbrota Veterinary Clinic

1901 Roscoe Avenue
Zumbrota, MN 55992



Our Doctors

Dan Nietz, DVM is happy to provide veterinary care at Zumbrota Veterinary Clinic!

Dan Nietz, DVM

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 Veterinary Medical School.  Dr. Nietz has furthered his veterinary education with additional training in orthopedic and soft-tissue surgery, laser surgery, and advanced dentistry.  He has been owner of Zumbrota Veterinary Clinic since 2004, and lives in Zumbrota with his wife, Bretta, and their 5 children, Anna, Maren, Dane, Stefan, and Hans, and the Vet Clinic’s mascot, Oakley the Golden Retriever.  In his spare time, he enjoys boating, snow and water skiing, and wood fires. 



Dr. Cassie Quillen

Cassie Quillen, DVM

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.  She is a member of the AVMA and MVMA and has received additional training in dentistry.  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.