Proudly serving horse owners in

Our Clinic

The EVA clinic offers our clients and patients quality accommodations, including:

5 In-Patient Stalls

Our stalls feature rubber flooring mats, windows, and overhead fans, and each stall is large enough to accommodate any size horse, even mares and foals.

Surgery Suite

EVA is equipped with a padded surgery suite for minor surgeries performed under injectable anesthesia.


Examination & Treatment Area

The clinic offers plenty of space for evaluation and treatment, including a set of stocks.


The pharmacy is readily stocked with medications and supplements for our patients.

Lameness Evaluation Area

The outdoor lameness evaluation area allows our veterinarians to properly see the mechanics of gait in order to help diagnose lameness issues.


EVA is proud to be able to run blood chemistry profiles, complete blood counts, and fecal exams in-house for faster results for our clients.

Our Team

Dr. Charles Mercer

Owner, Veterinarian

Dr. Charles Mercer is a 1996 graduate of the Mississippi State University College of Veterinary Medicine. He began working in the practice in January of 1996 before eventually buying the practice in 2011 and rebranding it Equine Veterinary Associates of Olive Branch with Dr. Chara Short. In 2002 Dr. Mercer was awarded Young Veterinarian of the Year in Mississippi by the MVMA. When not working, he enjoys hunting, fishing, and watching college sports, particularly the MSU Bulldogs! Dr. Mercer also likes caring for EVA’s clinic cats, “Gracie”, “Callie”, and “Scarlett”.

Dr. Chara Short

Owner, Veterinarian

Dr. Chara Short has been riding and showing horses since the age of 6, and because of such, took an early interest in veterinary medicine. In 2005 she graduated from Mississippi State University College of Veterinary Medicine and began working in the practice soon after. In August of 2011, she and Dr. Charles Mercer bought the practice, and renamed it Equine Veterinary Associates of Olive Branch. She takes a special interest in lameness and sport horse medicine, most likely due to her roots in the show world. In her spare time, she competes on the hunter/jumper circuit and enjoys spending time with friends and family. Chara shares her home with her husband, Dr. Charles Mercer, and their 5 dogs, 1 cat, and several horses.

Dr. Allison Parnell


Dr. Allison Parnell grew up showing hunter/jumpers in Germantown, TN. She majored in Animal Science at Auburn University before moving on to The University of Tennessee to pursue her veterinary degree. After vet school she completed a year long internship at Kendall Road Equine Hospital in Elgin, IL and worked as an ambulatory vet in the nearby suburbs of Chicago. Her special interests include lameness, medicine, and geriatric care. In her free time, she can be found hiking with her cattle dog mix, Olivia, or doting on her retired Quarter Horse, Nicky.

Client Info

Thank you for considering Equine Veterinary Associates of Olive Branch to assist you with quality care for your equine partner.
We are always ready to welcome new clients and provide them our services.

Clinic Hours

Monday-Friday, 8:00am to 5:00pm. However, a veterinarian is available 24/7 for emergencies. If you have an after-hours emergency please call the clinic and leave a message for the on-call vet.


We operate by appointment, so please call us ahead to schedule. Appointments can be at your farm/barn or in the clinic.

New Clients

If you are new to our clinic, please stop by the front office to fill out a New Client form. You may also download a PDF copy below to complete and bring with you to your appointment.

New Client Form


In some cases, a deposit may be asked for at time of treatment. Payments for services are due at the time of pick up. We accept cash, checks, and all major credit cards.

Our Services



Internal Medicine



Endoscopy & Gastroscopy

Lameness & Sports Medicine

Laser Therapy

Shockwave Therapy

Reproductive Services

Dental Services

 Physical Address

6740 Center Hill Road
Olive Branch, MS 38654

Mailing Address

P.O. Box 1890
Olive Branch, MS 38654

Phone, Fax, & Email

(P) 662-893-2546
(F) 662-890-5764