Our Team

Dayton Veterinarian(s)

Kyle Hapner
Dr. Kyle Hapner graduated from Northmont High School in 2001.  He started working at Northridge Animal Clinic in 1999 as a veterinary assistant.  He attended The Ohio State University in 2001 and graduated with a Bachelor of Science degree in 2005.  He continued to work part time at the clinic during summers and school breaks.  Dr. Hapner attended veterinary school at Ohio State from 2005-2009 where he earned his DVM degree, and started working full time at Northridge Animal Clinic in June 2009.  Dr. Hapner and his family currently live in Hilliard, Ohio, but have a lot of family ties to the Dayton area.  He was married in July 2012 and had his first child, a little girl, in November 2015.  Dr. Hapner and his family have 3 cats, Oscar, Buddy, and Dublin.

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Kristen Helsinger
Dr. Kristen Helsinger joined the Northridge Animal Clinic staff in August 2006. After earning her DVM degree at The Ohio State University in 2002, she practiced large and small animal medicine in Celina, Ohio for four years. In 2006, she made the decision to return to her roots in the Dayton area, and has been with us ever since. Dr. Helsinger thoroughly enjoys being a small animal practitioner, as it allows her to focus her attention on just two species. Although Dr. Helsinger likes all aspects of clinical practice, she especially enjoys surgery, wound care, and emergency medicine. Dr. Helsinger is married and has 2 daughters and 1 son, 4 cats, pigs, sheep, and rabbits.

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Karen Dorsey
Dr. Karen Dorsey is a native of Cincinnati Ohio, and has been practicing for over 20 years. She is a 1991 graduate of The Ohio State University College of Veterinary Medicine. Her Bachelor’s degree is in Laboratory Animal Medicine from North Carolina A&T State University, so her interests include not only cats and dogs but exotic animals as well. Dr. Dorsey has a variety of experience, including wildlife rehabilitation, rescue work, emergency medicine and large animal practice, and brings empathic enthusiasm to the practice. Dr. Dorsey is married with two adult children and one brilliant granddaughter. She currently has three cats and one dog, but those numbers are always changing!

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Johnna Smith
Dr. Johnna Smith graduated from The Ohio State University in 2005 with a Bachelor of Science degree and in 2009 with a Doctor of Veterinary Medicine.  In 2012, she became a Certified Veterinary Acupuncturist and in 2016 earned her certification in Veterinary Chinese Herbal Medicine.  She began working at Northridge Animal Clinic in 2015 doing relief work.  Over time, she began working more; and in April 2017 became part of our staff, working a part time schedule.  She lives in Vandalia with her husband and two dogs.