Doctors

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Dr. Carolyn Ecker, DVM

Dr. Ecker completed her undergrad at Iowa State and graduated from the University of Minnesota Veterinary School. She joined our staff in 2009. Her special interests include preventive medicine, managing medicine cases, and dermatology. Dr. Ecker has a beagle named Lula who often accompanies her to work. When not at work, she enjoys taking Lula for her evening walks, hiking, watching movies, and spending time with family and friends.

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Dr. Trevor Denisen, DVM

Dr. Denisen graduated from the University of Minnesota Veterinary School and began working at the clinic in 2001. He has a special interest in Veterinary Spinal Manipulation Therapy- essentially "animal chiropractic". Dr. Denisen has a beta fish named Bubbles. In his free time he enjoys gardening, playing with his children, going for walks with his wife, and playing frisbee golf.

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Dr. Tom England, DVM

Dr. England completed his undergrad in 1987 and graduated from the University of Wisconsin Madison Veterinary School in 1994. He began working at the clinic in 1994 and became a partner in 2007. His special interests include bovine reproductive ultrasound, bovine medicine/surgery, mastitis and parlor/procedure evaluation, and cervidae preventive health program/certification testing. Dr. England has a yellow lab named Emma. In his free time he enjoys hunting, boating, and fishing.

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Dr. Grafenberg has been with the Winona Veterinary Hospital for 35 years and is the co-owner. He recently became semi-retired.