Jason W. Arndt

Jason W. Arndt, DVM, DACVIM Veterinary Cardiologist

Servicing Locations

WestVet Boise

Dr. Jason Arndt, Diplomate of the American Veterinary College of Internal Medicine is a veterinary cardiologist at WestVet where he has been a part of the team since 2016. He is the only board-certified veterinary cardiologist in the state, bringing nearly ten years of specialty experience and knowledge to Idaho pets.

Dr. Arndt grew up southeast of Los Angeles. He pursued veterinary medicine as a career due to what he describes as a “long-term love of both animals and medicine.” A volunteer stint at a small animal veterinary practice during undergraduate school at California Polytechnic University in San Luis Obispo sealed the deal. He attended veterinary school at UC Davis, earning a Doctor of Veterinary Medicine in 2004, where he quickly realized that he wanted to specialize in cardiology.

Following veterinary school, Dr. Arndt attended the University of Illinois for a one-year rotating internship. His next stop on the path to veterinary specialty medicine was a three-year cardiology residency at the University of Pennsylvania.

In 2009, he began to practice at a specialty hospital in Brooklyn, New York. Two years later, he returned to his home state where he offered cardiology care to pets and their families in Los Angeles since 2011.

He has enjoyed the companionship of numerous pets throughout his life, but a chocolate Labrador holds a very special place. “My favorite pet memory is a trip I took with my beloved Chocolate Lab Jimmy Dean. During vet school, he and I drove across the country together, camping in numerous states. I got him in vet school and he was an amazing friend who has accompanied me through my internship, residency, job, marriage, children, and several moves.”

Dr. Arndt met his wife Siobhan O’Neill-Arndt while both were completing veterinary residencies in Philadelphia, PA. She is a board certified veterinary internist. They have two children, a 3.5-year-old daughter named Tenley and a one-year-old son, Fletcher. The family is completed with a small menagerie of animals that have joined their home over the years, adopted from California, Wisconsin, Philadelphia, and Los Angeles.

The Arndt family chose the Treasure Valley specifically to become their home. “Raising our children in a family-centered environment where there is a community focus on enjoying the outdoors/mountains was a primary motivation for us. In addition, the state-of-the-art care at WestVet is the perfect place to continue my career in Cardiology and Interventional Radiology.”

When not working, Dr. Arndt enjoys spending time with his family and all kinds of outside recreation, including stand-up paddleboard, motorcycles, and snowboarding, as well watching professional football, hockey, and baseball games.