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Support Staff

Animal Clinics in Rexburg

At Upper Valley Vet we have a wonderful support staff who are willing to assist you with all your questions and needs. Upper Valley Vet is one of the best animal clinics in Rexburg, because we are concerned for both our animal friends and their people! Feel free to give us a call at (208) 356-4271 if you have questions or concerns with your Rexburg animal care needs. Learn more about our Rexburg veterinary staff by reading about us below.
Rexburg Veterinary Clinic staff

BRITTNEY OLAVESON

Brittney was born and raised in Rexburg where she grew up racing flat track and chariot horses with her dad. She spent her summers in Kilgore running cows with her Grandpa. She started to rodeo at a very young age and once she graduated from high school she began barrel racing professionally. Together with her husband she enjoys starting and racing flat track horses and barrel futurity horses.

Casey Grant Hansen

Casey fills in at the reception desk two days a week.
You can learn more about her under Techs and Assistants.

Dena Jo Mortensen, Upper Valley Vet staff

DENA JO MORTENSEN

Dena Jo grew up here in Southeastern Idaho on the family farm where she learned to drive tractors and trucks, milk cows, buck hay, pick lava rock, and how to cook for a crowd. She attended business classes in high school and graduated from Ricks College in business. She started working at our clinic in October of 1994. Currently she takes care of our accounts receivable, charting, and scheduling. She helps with advertising and whatever else needs done. For a long time she changed our marquee where she posted many, many animal jokes for the community to enjoy. After a break, she once again started changing our marque in October of 2015. She maintains our website.
She and her husband are the parents of five daughters and a son. They have 17 grandchildren. Her husband works off the farm and also farms and ranches. Their family has 2 border collie dogs and several cats. They have about half a dozen horses and a small herd of Herford/Angus cattle. She enjoys country living, sewing, crafts, reading, and serving the community.

Cassie, Rexburg Veterinary Clinic staff

CASSIE FARNSWORTH

You can learn more about her under Grooming Staff.