Our Staff

All professionals at Ark Animal Clinic maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in the medical field. Read on to learn more about our staff's experience and training.

Dr. Erick Hess

Dr. Erick Hess is the owner of Ark Animal Clinic. Dr. Hess grew up in Hedgesville and graduated from Hedgesville High School.  He graduated from West Virginia University in 1993 and Tuskegee University School of Veterinary Medicine in 1998.  He has a special interest in internal medicine and feline medicine. He also does some equine work on the side. Dr. Hess lives in Hedgesville with his wife Jenny, who is also the office manager of Ark, his daughters Katie and Haley, two horses, eight cats, and two goats. He spends his free time working on his model trains, reading, and target shooting.

Dr. Nikki Piper

Dr. Nikki Piper grew up in Georgetown, PA and most recently hails from Sidney, MT. She graduated from The Ohio State University with an Animal Science Degree in 2011. She earned her DVM from Ross University School of Veterinary Medicine in 2015. Since graduating she has been practicing mixed animal general medicine in Montana. Nikki is especially interested in feline and bovine medicine. Nikki lives with her husband Brad and daughter Laekyn. She also has 2 cats, Siren and Midge, and 1 Corgi-Aussie Mix, Arlee. In her free time she enjoys spending time outdoors with her family, reading and working with cattle.

Dr. Olivia Wallner

Dr. Olivia Wallner grew up in the small, rural town of Wise, VA. She graduated from Virginia Tech in 2014 with a degree in Animal and Poultry Sciences, and then earned her DVM from Lincoln Memorial University-College of Veterinary Medicine. Although she enjoys treating animals of all kinds, she has a particular interest in feline and preventative medicine. Olivia lives with her husband Darris and seven cats, all of which are rescues, In her spare time, she enjoys reading and hiking as well as spending time with friends and family.

Contact Us

We look forward to hearing from you


Find us on the map

Office Hours

Our Regular Schedule

Ark Animal Clinic


8:00 am-5:30 pm


8:00 am-5:30 pm


8:00 am-5:00 pm


8:00 am-8:00 pm


8:00 am-5:30 pm


8:00 am-1:00 pm