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Meet our Staff!
Full biographies coming soon!

At River Valley Vet Clinic, each one of our devoted staff is passionate about animals. We’re a close-knit team that enjoys working with and supporting each other in any way that we can. Read on to meet the talented support at River Valley Vet.


Sandy Perez, CVT

As our office manager and CVT, Sandy stays very busy while in the office.  She is originally from Reedsburg and graduated from MATC with her CVT.   Her favorite part about RVVC is meeting all the people and caring for their pets.  The best thing that ever happened to her was becoming a mom of 3 children.  She enjoys outdoor activities, but really prefers it to be warm out when she does them! Some day she would like to travel to Australia!  G'day mate!

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Rachel Brunner


Tammy Harms

Anyone that has walked into the Reedsburg Office, knows Tammy.  She has been working for River Valley since 2009. She is married to Tim and they have two daughters, but the two grandchildren are the apples of her eye!  She is now part-time so that she can be present and active part of their lives.  Besides family,  Tammy loves being outside.  Whether it is in her flower gardens, lawn work, fishing or boating, all the sunshine makes her happy.  She is also a HUGE sports fan...GO BUCKS!

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Kim McGuigan

Kim started working for River Valley in 1997.  She is a lab assistant at the Plain office.  Her house/farmette is home to her dog, Tippy, and numerous cats to keep her busy.   When she was younger, she thought she was going to be a vet when she grew up.   All of this adds up to why she says she can't live without cats!  Outside of work, Kim loves to spend time in her garden and work on various crafting activities.  She helps to light up the office because her favorite phrase is "Think Positive".  

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Cheryl Martin

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Jennifer Muller

Jennifer began working the fall of 2019!  Her and Eugene, her husband, moved here from California where she used to work at a PetSmart.  So how fitting for her to come work at a vet office with her love of animals??   Jennifer loves crafting!  She has a large collection of Christmas ornaments, many of which she made herself.  Cooking and baking are huge passions of hers.  We are VERY thankful as she is always bringing in "samples" for us!

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Lydia Culp

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Sierra Harwood

Sierra is a great addition to the River Valley staff.  Her passion for animals and learning has made her a quick study!  She has a full household of animals: 2 dogs, 4 cats and 2 turtles.  She recently got engaged to Ethan and they will be married in the fall of 2024.  In her spare time, she likes to work on Jeeps for burnout competitions and off-roading.  Someday she would like to travel to Alaska!

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