Specialist Internal Medicine with Dr Guy Lester

At Avon Ridge Equine Veterinary Services, we’re proud to work in close collaboration with Dr Guy Lester, one of the world’s leading specialists in equine internal medicine. Through this partnership we bring true specialist-level diagnostics and care directly to your property — reducing the need to transport horses to referral clinics and allows for a lower-stress environment at home.

Dr Lester is a board-certified specialist in equine medicine with decades of experience in referral equine practice, including many years at prestigious institutions such as the University of Florida and Murdoch University. He holds a PhD, has authored over 100 research articles and book chapters, and has taught and mentored hundreds of veterinarians throughout his distinguished career.

Bringing Specialist Skills to Your Horse

Traditionally, advanced internal medicine work — such as detailed ultrasound, endoscopy, cardiology assessments, and complex case interpretation — often required horses to be transported to referral hospitals. Through our collaboration with Dr Lester, many of these diagnostics and consults can now be performed on-farm or on-site, providing:

• Comprehensive specialist consultations tailored to your horse’s individual health concerns

• Advanced diagnostic imaging, including ultrasound and endoscopy

• Cardiac and respiratory assessments

• Neurological assessments

• Opthamology consultations

• Interpretation of complex laboratory data and clincal cases

• Support with difficult or non-responsive medical cases

This on-property approach means less stress for your horse, faster turnaround on diagnostics, and care delivered in the familiar surroundings where your horse is most comfortable.

Decades of Experience, Focused on Your Horse

Dr Lester’s extensive background in both clinical practice and academic research equips him to support complex and challenging cases — from subtle performance issues to intricate medical conditions. His involvement enhances the depth of care we offer and supports your regular veterinarian with specialist insight when it matters most.

Whether you’re managing a chronic condition, investigating unexplained clinical signs, or seeking the highest level of medical expertise without leaving your property, our specialist service with Dr Guy Lester brings world-class equine internal medicine to you.