Gabriel A. Sánchez Barreras, DVM
Veterinarian · Veterinary Reviewer, Insulin Calculator
Arlington, Texas · Canine and feline insulin dosing content
View full professional profile on LinkedIn →About Dr. Sánchez Barreras
Gabriel A. Sánchez Barreras earned his Doctor of Veterinary Medicine at Ross University School of Veterinary Medicine and practises at the Animal Eye Clinic in Arlington, Texas. He is a Diplomate of the American College of Veterinary Ophthalmologists (DACVO) — a board certification in veterinary ophthalmology.
He joined insulin-calculator.org as veterinary reviewer in August 2026, on the recommendation of our medical reviewer, Dr. Chhaya Makhija.
Why a DVM Reviews These Pages — and What That Means
Veterinary insulin dosing differs from human dosing in ways that matter. Several veterinary insulins are U-40 rather than the U-100 used in human medicine, so drawing them into a human syringe delivers roughly two and a half times the intended dose. Cats can achieve diabetic remission, which does not happen in people. Starting doses are often flat rather than weight-scaled. None of this is covered by a human-medicine qualification, which is why our medical reviewer's scope explicitly excludes these pages.
We want to be precise about the credential. Dr. Sánchez Barreras's board certification is in veterinary ophthalmology, not internal medicine. That specialty is unrelated to diabetes, so the byline on these pages reads “DVM” rather than citing DACVO — his relevant qualification here is that he is a licensed veterinarian, and canine and feline diabetes management is core DVM competence and everyday general practice.
We state this openly rather than letting a board certification imply expertise it does not cover. If we engage a Diplomate of the American College of Veterinary Internal Medicine (DACVIM) in future, we will say so and update these pages.
Verifying These Credentials
His professional profile is listed on LinkedIn. Texas veterinary licences can be verified through the Texas Board of Veterinary Medical Examiners, and board certification through the American College of Veterinary Ophthalmologists.
If you believe any credential or claim on this page is inaccurate, please contact us — we correct errors promptly and treat reviewer accuracy as non-negotiable.
Pages Under Veterinary Review
Written by Ryan Mitchell · Last updated: September 2026