Our Doctors

Dr. Mark Hardesty (Co-Owner)

is a 1988 graduate of The Ohio State University College of Veterinary Medicine and received the Award for Excellence in Food Animal Medicine and Surgery. Dr. Hardesty also holds a Master’s degree in Dairy Nutrition and Management from Ohio State. He practices exclusively with dairy cattle and calves. Dr. Hardesty works in all aspects of production medicine, with special interests in Dairy Management, Cow Comfort, Building Design, Nutrition consulting, Milk Quality, milker training, heifer raising and vaccination programs. Dr. Hardesty writes a monthly column in the Hoard’s Dairyman magazine. Dr. Hardesty is an active member of the American Association of Bovine Practitioner’s, Ohio Dairy Vets, Tri-State Nutrition, Ohio Veterinary Medical Association, American Veterinary Medical Association, and received the Merial Preventive Medicine Award for Dairy in 2000. Dr. Hardesty served on Ohio’s Dairy Care Standards Committee and is involved in supporting local Ag Education. In 2014, Dr. Hardesty was named AABP Practitioner of the Year.

Dr. Michelle “Mitch” Michalak (Co – Owner)

is a 1985 graduate of The Ohio State University College of Veterinary Medicine. She also completed the Executive Program in Swine Health Management at the University of Illinois in 1998. Dr. Michalak’s primary focus, when not in the office seeing small animals, is in swine production and preventative medicine. Her special interests in swine production involve welfare education and PQA Plus certification. Dr. Mitch sees small animals in all of our offices. Dr. Michalak and her husband, Dr. Hardesty, have two daughters, Megan a Food Science graduate of OSU and Molly a current student also at the Ohio State University. Dr. Mitch is also involved with the Girl Scouts, teaches religious education, and sings in the choir at her church.

Dr. Brandy Liles (Co- Owner Wapakoneta Office)

is a 1999 graduate of The Ohio State University College of Veterinary Medicine. Dr. Liles joined our practice in 2002. Dr. Liles was born in West Mansfield and now resides with her husband and three children in Wapakoneta. Dr. Liles’ veterinary focus is small animal preventative care, surgery, dentistry, and quality of life care. She is a member of the Ohio Veterinary Medical Association and the American Veterinary Medical Association. Dr. Liles enjoys spending her time outside of the office watching her children participate in sports, reading, walking, and biking.

Dr. Laura Nusbaum

Dr. Laura Nusbaum is a 1999 graduate of the University of Findlay and 2004 graduate of The Ohio State University College of Veterinary Medicine. Dr. Nusbaum was from Defiance County; she now resides outside of New Bremen with her husband and three children. Since joining our clinic in 2004, Dr. Laura devotes her time to both small and large animal care. Her special interests include small animal surgery, livestock and pet disease management, and calf care. She is a member of the OVMA, AVMA, and AABP. She also enjoys spending time with her family camping.

Dr. Angela King

Dr. Angela King

Dr. Angela King is originally from Boone, Iowa, and graduated from Iowa State University's College of Veterinary Medicine in 2009. She is a proud Cyclone! The week after graduation she married her husband Cody. They met on a dairy farm in Northeast Iowa while Dr. King was in veterinary school. They have a daughter and a house full of cats and one dog. Dr. King practiced in Wisconsin for four and a half years in a dairy exclusive practice and then worked and managed a 500-cow dairy in Wisconsin with her husband before coming to MSAC in December 2014. Her practice interests include dairy cattle welfare, bilingual dairy training, calves, and cats. She is a member of the American Association of Bovine Practitioners, Ohio Dairy Veterinarians, the American Association of Small Ruminant Practitioners, the American Veterinary Medical Association, the Ohio Veterinary Medical Association, and the Iowa Veterinary Medical Association. When she is not working, she enjoys baking, exploring the Miami-Erie Canal, and spending time with her family and friends.

Dr. Andy Lefeld

is a 2015 graduate of The Ohio State University College of Veterinary Medicine. Dr. Lefeld is originally from Saint Henry. He now resides in New Bremen with his wife Stacey, whom he met while attending college at Ohio State. Dr. Andy's clinical interests include dairy management, cattle reproduction, milking system analysis, and mastitis troubleshooting. While not at work, he enjoys being outdoors with family and friends. He is a member of OVMA, AVMA, AABP, and NMC.

Dr. Emily Stayduhar

is a 2016 graduate of The Ohio State University College of Veterinery Medicine. Dr. Stayduhar is originally from western Pennsylvania, but she has become a proud Buckeye. She now resides in St. Henry and married her husband Kevin in September 2016. In her spare time Dr. Emily enjoys spending time with her dogs, running, and cheering on the Buckeyes with her family and friends. She has a passion for both large and small animals and her special interest include surgery, dairy management, and calf care. She is a member of OVMA, AVMA, and AABP.

Dr. Paul Hunter

grew up in Wilmington, OH but the Hunter roots in Mechanicsburg, OH go back to 1803. He holds Animal Science and Veterinary Medicine degrees from The Ohio State University. Since graduation, he has spent his professional career in the Minster/Maria Stein area. While his primary focus these days is pet animals, he still continues to work with food animals, pocket pets, reptiles and backyard horses. Since he owns a large flock of sheep and a herd of goats, he has special interest in those species and has held several state and national positions in those industry groups. In the pet realm, Dr. Hunter concentrates on behavior and dermatology issues.

Maria Stein Animal Clinic

8155 State Route 119 Maria Stein, OH 45860

Heartland Animal Clinic, LLC

1018 West Auglaize Street Wapakoneta, OH 45895

Minster Veterinary Service

29 South Main Street Minster, OH 45865

Heartland Veterinary Care

315 East Main Street Versailles, OH 45380