Meet Our Team

Conroe, TX

Aaron Rainer Chief of Medicine and Surgery Horizon Veterinary

Welcome to Horizon, Montgomery County’s most affordable premier, cutting-edge veterinary clinic! We’re thrilled to introduce our unique practice and the services we offer to Conroe, The Woodlands, Willis, Magnolia, and Montgomery. Take some time to explore our website and discover what sets us apart.

Horizon is a family-owned, small animal practice, in the process of receiving its AAHA Accreditation, offering routine services such as vaccinations, wellness exams, sick/injured exams, spays/neuters, dental procedures, and general surgeries. We also provide elective surgeries and advanced specialty procedures, many of which are performed by our board-certified surgeon in-house. We are dedicated to creating a transparent, safe, and pet-friendly environment for your furry friends.

While we care for common sick and injured pets, we also handle more complicated cases. Horizon has teamed up with a national network of veterinary specialty consultants, to pilot a program that allows your Horizon family vet to work with multiple board-certified experts to create a personalized treatment plan in-house for your loved one, helping to manage costs and increase access to care.

To further assist with the rising costs of veterinary care, we offer multiple payment options, including affordable payment plans alongside traditional pay-at-time-of-service methods. Our commitment is to ensure that financial concerns don’t prevent your pet from receiving the care they deserve.

And that’s Horizon! We think you’re going to like it.

Aaron Rainer, DVM, MPH

Dr. Rainer, born and raised in Temple, Texas, is married to Laurin and has two children, Adriel and Jace. They have two dogs, Gilly and Margo; two cats, Janet and Pamela; and beef cattle. Dr. Rainer is an avid sports fan and enjoys all things college and high school football while spending time with his family.

Dr. Rainer received his undergraduate degree in Biomedical Science in December 1998. He received a dual degree as a Master of Public Health and Doctor of Veterinary Medicine from Texas A&M University in May 2006. He has strong interests in preventive medicine, internal medicine, surgery, mentorship, leadership, and entrepreneurship.

Dr. Rainer co-founded the Animal Emergency Center of Temple-Belton™ and Gig™, an innovative veterinary staffing concept. He also owns Fetch™ by Dr. Rainer, a mentorship and consulting platform for veterinarians and staff. Dr. Rainer has held several professional leadership positions in the last decade, including the 2018 President of the Texas Veterinary Medical Association (TVMA) and its 4,400+ members and 4,000+ non-members. He remains the youngest president in the over 100 year storied history of TVMA.

Dr. Rainer continues to play a vital role in developing, shaping, and implementing the strategic direction of veterinary medicine in Texas and hopes that Horizon can fill a dire need for the veterinary profession.

Professional highlights: