A native of Westchester County, New York; Justin Guinan, DVM, DACVIM (SA-IM) began his veterinary career in 2000 with a BS in biology from Syracuse University, followed by a DVM degree from the Atlantic Veterinary College in 2005. Later that year, Dr. Guinan enrolled in a yearlong general internship program, followed by another yearlong specialty internship program in internal medicine and neurology at Long Island Veterinary Specialists. In 2009, he went on to complete his residency in small animal internal medicine at the Animal Medical Center in New York City.

With years of experience, education, and a board certification under his belt, Dr. Guinan worked at a large specialty and emergency veterinary hospital in New Jersey for several years before joining the VRC team in 2017.  His clinical interests include hematology, endocrinology, ultrasonography, and all forms of diagnostic endoscopy. Outside of work, Dr. Guinan enjoys spending time with his wife and two young sons, baseball, football, hiking, and music.

Dr. Guinan offers outpatient ultrasound by appointment.

To read answers to our most frequently asked questions regarding internal medicine at VRC, click HERE.