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Veterinary Service
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Compassion. Professionalism. Attitude. Technology. Teamwork.

Tri-County Veterinary Service is a mixed animal practice with offices located in Anna & Sidney, Ohio providing veterinary care for both livestock and the family pet since 1982. It is our goal to provide high-quality medicine along with excellent client education enabling our patients to live a long and happy life. We accomplish this with a compassionate staff, an educated and well-trained medical team and some of the latest technology available in veterinary medicine. Our friendly, knowledgeable staff are happy to speak with you about your pet or livestock care questions.

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Large Animal Ambulatory Services

Here at Tri-County Veterinary Service, we offer care and resources for more than just cats and dogs. We provide a variety of services for farm clients including cattle and small ruminant needs. Contact us today for an appointment.

Our Services

Our Veterinarians

Without our amazing and qualified staff the success of Tri-County Veterinary Service just wouldn’t be possible. We pride ourselves on great veterinary services and a friendly, welcoming atmosphere.



A native of Fletcher, Ohio, Dr. Tim Woodward came to Tri-County Veterinary Service in June
1986 following graduation from The Ohio State University College of Veterinary Medicine. He became a partner in the business in 1992.

His veterinary interests include all the aspects of farm animal medicine, especially small ruminants, small animal orthopedics, and surgery. Today, he lives near Maplewood with his wife, Cindy. They have two sons, daughters-in-law and two grandchildren. In his spare time, Tim enjoys working with sheep, attending church activities, and following sports teams. His favorites are the Reds and OSU football & basketball!



Dr. Andy Mack was born and raised in Botkins, Ohio. Following graduation from The Ohio State University College of Veterinary Medicine, he joined Tri-County Veterinary Service in June of 2007.

He enjoys many aspects of veterinary medicine and has special interests in dairy and beef cattle production, small animal medicine, and soft tissue surgery. He currently lives in New Knoxville with his wife, Laura and their three children. His family has a small beef cow herd, two dogs name Chumley & Mavis, and many barn cats. In his spare time, he enjoys spending time with his family, woodworking, and raising and showing beef cattle.



Dr. Amanda Wagner joined Tri-County Veterinary Service in June of 2013 after graduating from The Ohio State University College of Veterinary Medicine. Prior to being a Buckeye, she attended The University of Findlay where she obtained a B.S. in Biology.

Dr. Wagner grew up on a farm outside Bluffton, Ohio. She enjoys all areas of veterinary medicine and has a special interest in bovine medicine and both small and large animal surgery. She is the proud owner of her Dalmation named Skyler and an aquatic turtle. In her free time, she enjoys cycling, kayaking, participating in mud runs, reading, and spending time with my family.



Dr. Kaleb Headings was raised near Sidney, Ohio and graduated from the The Ohio State University in 2016. He joined the Tri-County Veterinary Service in June of 2018 after practicing in southwestern Kentucky for two years. Currently, he lives with his wife, daughters, three dogs, and a one-eyed cat in Sidney, Ohio. Many areas of veterinary medicine interests him, including dairy and beef medicine as well as small animal surgery. When he isn’t cheering on the Buckeyes, he enjoys reading, hunting, and spending time on the water.



Dr.Haley Blazek graduated from Kansas State Univeristy in 2020 and joined Tri-County Veterinary Service shortly after. She is a Buckeye at heart and graduated from The Ohio State University with a B.S. in Animal Science in 2016.

Originally from the Cleveland area, Dr. Blazek is excited to come back and practice in her home state. While she enjoys all aspects of mixed animal practive, she is especially interested in small animal medicine, pathology, and both small and large animal surgery.

She has a sassy calico cat named Thea who rules the house and an adopted Goldendoodle named Finley. Outside of the clinic, Dr. Blazek enjoys making new dessert recipes, reading, playing volleyball, and trying to have faith in the Cleveland Browns.

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16200 Co. Rd. 25A
Anna, OH 45302
Phone: (937) 693-2131

Monday: 7:00AM-7:00PM
Tuesday-Friday: 7:00AM-6:00PM
Saturday: 7:00AM-12:00PM
Sunday: CLOSED


3714 St. Rt. 47
Sidney, OH 45365
Phone: (937) 492-6536

Monday–Friday: 8:00AM-6:00PM
Saturday: Every Other Weekend 8:00AM-12:00PM
Sunday: CLOSED