Dr. Hammock graduated from the University Of Tennessee, College Of Veterinary Medicine in 1992. After completing an internship in Large Animal Surgery at Cornell, he joined a racetrack/referral surgery practice in Birmingham, Alabama. With a strong desire to pursue his interests in surgery and lameness, he completed an Equine Surgical Residency at the University of Illinois, becoming a Diplomate of the American College of Veterinary Surgeons in 2000. After a brief stint at a referral hospital in Virginia, he was invited to go to Dubai, UAE to join the Dubai Equine Hospital as staff surgeon, providing surgical expertise and healthcare for some of the best equine athletes in the world. After returning to the United States he joined, and eventually became a partner in a practice in Ocala, Florida. He continued to hone his skills and abilities, providing expertise in surgery, as well as assistance in selecting potential equine athletes for some of the top owners in the racing industry. In 2009, the partnership was dissolved and Dr. Hammock returned to Tennessee. He joined a referral hospital there providing surgical and lameness expertise to clients. Being more centrally based, he continued to attend all the major Thoroughbred sales on behalf of his clients. Thoroughbred sales continue to occupy much of his busy schedule.

He has a solid reputation in the show and sport horse world, providing advice and treatment on lameness and other performance issues on horses from all disciplines including Eventers, Jumpers, Hunters, Western Pleasure, Barrel Racers, Roper, Tennessee Walking Horses, and Saddlebreds. He continues to perform surgery on a regular basis at surgery facilities located in Louisville and Thompson Station, Tennessee.

On returning to Ocala, Dr. Hammock has partnered with Dr. Alberto Rullan in the Equine Performance Center. Their combined forces have allowed for the construction of a new state of the art surgical facility which completes the rehabilitation center. This partnership will provide the Ocala horse community with a valuable resource allowing for complete surgical and aftercare for equine athletes.

Dr. Hammock’s main interests include upper airway, arthroscopic, and laparoscopic surgery on equine athletes. He holds veterinary licenses in Florida, Kentucky, Maryland, New York, and Tennessee and is a member of the Royal College of Veterinary Surgeons in the UK. He is an adjunct professor at The University of Tennessee, College of Veterinary Medicine. He currently lives in Micanopy, Florida with his wife, Joanne; dogs Ava and Jag; retired racehorse Tumster; and donkeys, Harry and Jasmine.


Dr. Alberto Rullan founded Performance Equine Veterinary Services in 2009. This practice focuses mainly on treating performance-related problems in horses. Dr. Rullan’s goal is to provide an accurate diagnosis in order to provide recovery with the best available treatment for horses that are not performing to their full potential.

Dr. Rullan graduated from the University of Pennsylvania, School of Veterinary Medicine in 2006. In 2002, he received his Bachelor of Science degree from Pennsylvania State University. Dr. Rullan was assigned a one-year equine Alberto in school internship at Louisiana State University Veterinary Teaching Hospital and Clinic where he obtained advanced training in diagnostic and therapeutic techniques in equine medicine and surgery.

Dr. Rullan frequently travels to broaden his veterinary knowledge and consulting around the world. He continues his studies in equine rehabilitation, lameness diagnostics and treatment methods, and the use of stem cells and regenerative therapy in equine injury treatment and recovery. He is also active in volunteering with the Equitarian Initiative, a non-profit international organization that is dedicated to providing veterinary care to horses in less fortunate, communities and teaching basic veterinary care to the people in these communities.



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My name is Ariadne Welter, Ari for short. I was born in Germany, but raised in Citrus Springs, Florida. My parents were both enlisted in the U.S. Army and were stationed in Germany, then later moved to Florida.

I’m currently obtaining my Bachelor’s Degree in Equine Business at College of Central Florida. Throughout my life, I’ve always been around horses, but never had any of my own. I began to volunteer at Equine Performance Center back in November of 2018 for a few months, then became an official employee. Today, I’m now the Pharmacist and Technician for EPIC: Equine Performance Innovative Center’s rehabilitation, surgery, and veterinary divisions.

Being a part of the EPIC team is awesome because I always dreamed about doing this when I was a kid. Now I’m living my dreams and I’m surrounded by horses everyday and get to make sure they stay healthy and get well!

Maria Soria

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Santiago Rodriguez

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Duiver Moran

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Frank Jimenez

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Enrique Castaneda

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