Dr. Thomas M. Irwin

Dr. Tom is one of the most relaxed, down-to-earth vets you will ever meet. With over forty years of small-animal practice experience, you will be in great hands here at Newport Mesa Animal Hospital.

Dr. Tom attended undergraduate school at the University of Hawaii, where he fell in love with surfing. He then continued his education at the University of California at Davis and received his BS in Biology and Animal Science in 1978. He then continued his education at the University of California at Davis, where he received his Doctorate in Veterinary Medicine in 1983. A very “low key and down to earth” person – his practice philosophy is to provide progressive quality medicine in a relaxed, common sense, honest practice with the pets well-being of primary importance.

In June of 2026, Dr. Tom is retiring from day-practice, but staying employed with Newport Mesa Animal Hospital as the Medical Director. His continued involvement in the practice includes medical oversight, team mentorship, and on-call services. While he will no longer be seeing scheduled appointments, he will continue to remain very involved in the oversight and direction of our special, family-owned veterinary hospital.

His other passions include his family and recently welcomed granddaughter (Olive) and grandson (August).

His pets include Sonrisas (American Village Dog – rescued from mainland Mexico) and Earl the Girl (Mixed breed rescued from the streets of LA).