Waller Equine Hospital

08/25/2026

Meet Dr. Marissa Pierik at OEPS! 🐴🎓

We’re excited to have Dr. Marissa Pierik representing Waller Equine Hospital at OEPS!

Vet students — if you’re attending, make sure you take advantage of this event! OEPS is a great opportunity to learn, ask questions, and connect with veterinarians who are already out there practicing. There’s so much you can learn from having conversations with people who have been through veterinary school and are now working in the field.

Come say hi to Dr. Pierik, learn more about equine practice, and get a feel for what life is really like after graduation!

We’d love to see you there! 🐎💙

08/17/2026

Waller Equine is proud to welcome Dr. P. David Wallace to our team!

Dr. Wallace brings an outstanding background in equine surgery and emergency medicine. His advanced training includes internships at Rood & Riddle Equine Hospital and Iowa State University, followed by a fellowship in Equine Sports Medicine & Surgery and a surgical residency. Most recently, he served as an emergency clinician at Oklahoma State University, where he provided advanced surgical and emergency care for equine patients.

A proud Texas native, Dr. Wallace earned both his undergraduate and Doctor of Veterinary Medicine degrees from Texas A&M University. During his time at Texas A&M, he was also a member of the renowned Fightin’ Texas Aggie Band.

With extensive expertise in equine surgery, sports medicine, and emergency care, Dr. Wallace is dedicated to providing exceptional patient care and helping horses perform and recover at their very best. We are excited to welcome him to Waller Equine and look forward to the knowledge, experience, and compassion he brings to our clients and their horses.

Please join us in giving Dr. P. David Wallace a warm Waller Equine welcome!

08/09/2026

07/15/2026

Who thinks they can identify the doctor!

07/09/2026

Some cases remind us why we love what we do.

This mare, a long-time patient of Waller Equine Hospital whose owners have been with us since the day we opened our doors, suffered an acute traumatic open comminuted moderately displaced fracture of the nasal bone with an associated sinus fistula following a penetrating injury to her face.

After an initial period of healing, our board-certified surgeon performed a reconstructive procedure using a periosteal flap to close the defect and restore the area.

These photos tell the story of an incredible journey—from a devastating injury to an amazing recovery. (Don't worry—we've grayed out the graphic images for those who are a little squeamish!) Today, she's doing beautifully, and we couldn't be happier for her and her family.

A very special thank you goes to her owners. Their unwavering dedication, patience, and commitment to her recovery made all the difference. They have trusted us with the care of their horses since Waller Equine Hospital first opened, and it has been an honor to be part of this mare's remarkable journey.

07/08/2026

🎵 Cue the Rocky theme song… because the rabies response squad has arrived. 😎

When there's a possible rabies case, there's no such thing as being too careful. Full PPE helps protect our team while we care for the patient.

The good news? Rabies is almost entirely preventable through routine vaccination. Keeping your horses up to date on their rabies vaccine helps protect them—and greatly reduces the risk to the people who care for them.

A little prevention goes a long way! 💉

07/03/2026

Dr. Faith Isabelle joins Waller Equine as a veterinary intern, bringing a passion for reproductive and preventive medicine along with a strong commitment to patient advocacy and lifelong learning. A native of Cypress, Texas, she developed an interest in animal health by raising goats as part of her FFA projects at Cypress Woods High School, which inspired her to pursue a career in veterinary medicine.

Dr. Isabelle earned her Bachelor of Science in Agriculture with a concentration in Animal and Food Sciences and a minor in Chemistry from Prairie View A&M University before completing her Doctor of Veterinary Medicine degree at Tuskegee University College of Veterinary Medicine in 2026.

Her professional interests include reproductive medicine, with a focus on breeding, fertility, pregnancy, and neonatal care, as well as preventive medicine and client education. As an intern at Waller Equine, Dr. Isabelle is excited to further develop her clinical skills while working alongside our veterinarians to provide exceptional patient care. She is dedicated to promoting long-term animal health through proactive care, early disease detection, and strong partnerships with clients.

Outside of veterinary medicine, Dr. Isabelle enjoys spending time with friends, fishing, crocheting, and reading.

07/02/2026

Dr. Alyssa Deweerdt joins Waller Equine as a veterinary intern, bringing a lifelong passion for horses and equine medicine. A Michigan native, she developed her interest in animal care through years of involvement with equine rescue organizations, inspiring her to pursue a career dedicated to helping horses thrive.

Dr. Deweerdt earned her Bachelor of Science in Biology with a specialization in Microbiology from Oakland University before completing her Doctor of Veterinary Medicine degree at Midwestern University College of Veterinary Medicine in 2026.

Her professional interests include sports medicine, theriogenology, and emergency medicine. As an intern at Waller Equine, Dr. Deweerdt is excited to further develop her clinical skills while working alongside our veterinarians to provide exceptional patient care. She is committed to building strong partnerships with horse owners and believes every horse deserves individualized care, open communication, and thoughtful, collaborative decision-making.

Outside of veterinary medicine, Dr. Deweerdt enjoys spending time with family and friends, reading, and playing with her newly adopted cat, Tiffany.