Our Doctors

Our clinic is staffed by five doctors: Dr. Hank Oliver, Dr. Andrianna Krippaehne, Dr. Kelly Hollister, Dr. Jim Bensonand Dr. Emma Lantz. Dr. Krippaehne and Dr. Benson care exclusively for our small animal patients while Dr. Oliver, Dr. Hollister, and Dr. Lantz provide care for both large and small animals.

Dr. Hank Oliver, our lead veterinarian, graduated from the Washington State University College of Veterinary Medicine cum laude in 1980. He has practiced in Pasco continually since 1982. Dr. Oliver has given many talks for local clubs about issues relating to animal health and was even a guest speaker at the Jackson Hole Veterinary Rendezvous in Wyoming. He and his wife are very involved in equestrian activities and sports; Dr. Oliver previously served as president of the Tri-Cities Polo Club.

Dr. Hank Oliver

Dr. Andrianna Krippaehne (née Oliver) grew up in Pasco. She attained a BS in Veterinary Science and subsequently graduated from Washington State University College of Veterinary Medicine in May 2009, where she received recognition for outstanding achievement in radiology and was ranked top ten in her class. Dr. Krippaehne has attended numerous continuing education courses in soft tissue ultrasound and hopes to someday become board-certified in veterinary imaging. She and her husband Dan have two dogs.

Dr. Krippaehne

Dr. Kelly Hollister attained her baccalaureate in Animal Sciences in 2011 and graduated top 15 in her class from the WSU College of Veterinary Medicine in 2014. While at WSU she received an Outstanding Senior Award and was a member of Phi Zeta (the honor society for veterinary medicine).

When she’s not at the hospital Dr. Hollister enjoys working on the farm with her boyfriend, Jared, riding horses, hiking, dirt biking, and spending time with her family.


Dr. Hollister

Dr. Jim Benson grew up on a ranch in eastern Montana. He attended Montana State University for his pre-vet, then finished up at Washington State University’s College of Veterinary Medicine. When he came to the Tri-Cities he only planned to stay one year but he fell in love with the area and has been here ever since. In his spare time, Dr. Benson enjoys doing yard work and tinkering with his older cars. He and his wife Gwen love spending time with their kids and grandkids (they have 12!), particularly watching their ball games and dance recitals.

Dr. Benson enjoys getting to know people and their animals through his work and looks forward to many more years of active practice.

Dr. Benson

Dr. Benson

Dr. Emma Lantz grew up in the city of Chicago but didn’t let that stop her from working with animals large and small! She earned a Bachelor of Arts in Biological Sciences from the University of Chicago in 2009 and started moving west. She graduated from Colorado State University with a Master of Public Health in epidemiology (2015) and a Doctor of Veterinary Medicine (2016) as a member of the veterinary honor society Phi Zeta. She has worked with wild, domestic, and zoo animals across the U.S. and abroad (in Mexico, New Zealand and Tanzania). This breadth of experience has helped her bring an informed and creative approach to the patients she sees. Her passions include educating clients, treating the whole animal, and a willingness to see any species (even the rare tarantula!).

Dr. Lantz looks forward to becoming a member of the Tri-Cities community and learning how to fish. Her current hobbies include reading books with a good cup of tea, riding horses, playing soccer, and doing pretty much anything outdoors. She and her husband Derek share a home with their small-but-fierce cat Mickey.

Dr. Lantz

Dr. Lantz

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