About Mad River Veterinary Hospital and Staff

Mad River Veterinary Hospital is a full-service clinic for your pet's health needs. We provide routine preventive care such as wellness exams, vaccines, spays and neuters, as well as diagnostics and treatment for health concerns. We offer digital x-ray, laboratory testing, and in-house tests for an array of diseases. We also perform more advanced soft tissue and intermediate orthopedic surgical procedures, such as tumor removal, fracture repair, cruciate repair, and FHO. Overnight hospitalization is available for sick patients.

Call us to schedule an appointment for your pet or ask us about our recommendations for preventive health care. We look forward to hearing from you!

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William J. Maynard DVM

Dr. William Maynard (Dr. Joe) graduated from The Ohio State University College of Veterinary Medicine in 2006. He received his B.S. in Biology from Wright State University. A longtime Springfield native, he graduated from Northwestern High School. He served as a combat medical specialist in the U.S. Army before continuing as an EMT in the civilian world. While taking classes at Wright State, he became more interested in the veterinary side of medicine and has been hooked ever since, working at another Springfield clinic before, during, and after vet school. Now he is proud to be branching out on his own and is excited to bring high-quality medicine and surgery to the new practice. He has two sons, some ornery cats, and a camera that he loves more than his own wife!

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Nikki L. Maynard DVM

Dr. Nikki Maynard (Dr. Nikki) originally hailed from the Urbana area and graduated from Graham High School. She attended Miami University and received her B.A. in Biology from Wittenberg University. After receiving her doctorate from The Ohio State University College of Veterinary Medicine in 2010, she spent 3 years as a mixed animal practitioner before starting a new adventure as a small animal practice owner. An avid horsewoman, she showed her Arabian horse in hunt seat and dressage for years. She lives for international travel, hiking, theater and music, and torturing Joe with cooking experimentation. Most of her free time outside of work is devoted to caring for a young son.

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Bonnie Receptionist

After almost 30 years in Mortgage Banking, Bonnie Jamison chose to retire early to make time for a career of the heart. She brings to her job as receptionist at MRVH much experience working with animals. Her dogs, Skye and Buddy, are her animal assisted therapy partners as they volunteer in the community, both in Champaign and Clark County. Bonnie is also an evaluator for the Dogtor’s Animal Assisted Therapy program and was a positive style dog obedience instructor for 10 years with K9 Kollege, still subbing there on occasion. SamCat, adopted from the Clark County Humane Society in 2010 runs the show at home – as cats are known to do.

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Olivia RVT

Olivia Ledley is a 2011 graduate of Columbus State Community College, where she earned her Associate of Applied Science Degree in Veterinary Technology. As a Technician student she interned through The Ohio State Veterinary Hospital. She also attended James A. Rhodes State College as a PSEOP student. She is a 2009 graduate of Ridgemont High School, where she was active in FFA and showing dairy cattle. Olivia previously worked at a mixed animal practice for 6 years. Her pets include a cattle dog, Max, and a bassett hound/pit bull mix named Eeyore (yes, he is as goofy looking as his breed mix sounds!). Her cats are Precious, Bentley, Furby, Hitch and Purrble. She also has two guinea pigs named Reese and Fonzi. Olivia is excited for her future as a part of the growing practice at MRVH.

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Missy Receptionist

Missy Nester is one of the faces you will see when you first walk into Mad River Veterinary Hospital. She is a lifelong resident of Springfield and graduated from Springfield North High School. She remained in the area graduating from Wright State University. Prior to Mad River Veterinary Hospital, she spent many years working in the social services field. She enjoys working with people and loves animals, so she can't think of a better job than this one. She is married and has two sons. They currently share their home with two dogs, two frogs, one turtle, and a very entertaining parrot.

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Joe RVT

Joe Schultheis, RVT is a graduate of the Veterinary Technician program at Columbus State. He grew up just north of Dayton and attended Fairview High School. His early studies at Ohio University and Wright State University culminated in an undergraduate degree with a dual major in Environmental Science and Hydrogeology. He also attended both universities for graduate studies. As a certified professional geologist, he worked in the environmental field for over 20 years before pursuing his passion working with animals. He thinks some of the coolest animals on earth are English Springer Spaniels, contented Holstein cows, and Huacaya alpacas. For relaxation he enjoys getting dirty playing in the mud (normal people call it ceramics or pottery) and weeklong backpacking treks through Wyoming, Idaho, and Montana. He is not afraid to admit he likes bluegrass music.

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Natalie RVT

Natalie Davis, RVT is a 2011 graduate of Columbus State where she received her associates degree in Veterinary Technology. She is also a local graduate of Northeastern High school where she was involved in multiple activities such as volleyball, basketball, powerlifting, spring musicals and officer of the FFA club. She was also a 10 yr member of Clark County 4-H which she continues to be involved with by showing her Suffolk lambs at the fair every year. She also enjoys baking, reading, and anything in the outdoors with friends and family. 

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Katie RVT

Katie graduated from Columbus State Community College in 2007 after doing an internship at OSU. She has worked in the veterinary field for over 8 years. Though she likes cats, she adores dogs. Katie takes a special interest in surgery and dental care. She enjoys spending as much time as she can outside on the farm with her husband, stepson, and son.

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Debbie Receptionist
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Heather Receptionist

Heather is a 1997 graduate of Wright State University with a BS in Business. She has been working with animals since 1994. Heather has trained many dogs for Pilot Dogs in Columbus and has also taught several local obedience classes. She currently lives in South Charleston with her husband and two daughters. She enjoys fishing, bike riding and reading.

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Sara Receptionist

Another person to greet you at the front desk is Sara Marsh. Sara joins us after many years workin in the retail pharmacy business. Even though Sara is a people person, she has decided the 4-legged patients are a lot cuter to work with! Sara is from Urbana. She loves to travel, has two adult children and two grandbabies she loves to spend time with.

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Crystal RVT

Crystal graduated from The Vet Tech Institute at Bradford School in 2008. She grew up in Troy, OH. Her love for animals started young while growing up in the country where there was wild life all about, from there she knew she wanted to work with animals. She spends most of her time raising up her two daughters.

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Jennifer L. Gregory DVM

Dr. Jennifer Gregory (Dr. Jenn) graduated from The Ohio State University College of Veterinary Medicine in 2016. She received her B.S. in Animal Sciences from Purdue University. She grew up in Speedway, IN within earshot of the Indianapolis Motor Speedway but has found her second home here in Springfield. She has always had a love for animals but became especially interested in animals but became especially interested in veterinary medicine while studying at Purdue and training assistance dogs with the Indiana Canine Assistance Network. She loves spending time with her husband and their mini zoo (currently including a cat, a dog, and a rabbit).

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Lori RVT

Lori graduated from Sinclair in 2016 with an Associates of Applied Science as a Veterinary Technician. She previously graduated from Fairmont High School in 2007. Lori has a son named Griffin, a standard poodle named Juno and a DLH cat named Percy. In Lori's spare time she enjoys playing with her son, pets, dabbling in crafts and enjoying the outdoors. 

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Shelby Assistant/Receptionist

Shelby Roberts is a veterinary technician student at Purdue University. She is a graduate of Stratford Career Institute, where she received a diploma in Veterinarian Assisting in 2012. She has lived in Springfield her whole life and attended Northwestern from K-12, graduating in 2010. Shelby started out shadowing at MRVH and was ultimately hired on as an assistant. She especially enjoys helping with surgeries and the everyday learning experience. She obviously loves animals and is very excited to start out at such an amazing practice.