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Our Staff

Our Hygienists

Meet our dedicated staff here at Avondale Dental.

Brenna – RDH

BrennaBrenna Cowan was born and raised in Hayden Lake as a proud Coeur d’Alene Viking. She attended Montana State University receiving a Bachelor of Science in Health and Human Development in 2006. In 2012, she graduated from Carrington College in Dental Hygiene, becoming a Registered Dental Hygienist.

Brenna joined Avondale Dental in 2013. When she is not busy working with her wonderful staff, you will find her spending time with her husband in the great outdoors. They enjoy hiking, skiing, boating and spending time with their families.

Brenna is a member of the Inland Northwest Hygiene Study Club and the Pinnacle Dental Hygiene Study Club.

Ellen – RDH

EllenEllen joined the Avondale family in 2003. She was born and raised in Kellogg, Idaho. She attended Carroll College in Helena, Montana and received her Bachelor of Arts degree in Dental Hygiene. Upon graduation, she moved to Billings, Montana and started her career in a periodontal office. Over the next few years, she was dedicated to enhancing her clinical and diagnostic skills used to treat periodontal disease. She was able to help other hygienists in general offices improve their skills in treating periodontal disease in their own offices.

Ellen has 2 boys, Eloy and Dolan. She felt the desire to raise her boys around family, so they moved to the Coeur d’Alene area. Ellen has been involved in the Inland Northwest Hygiene Study Club for 11 years and spent 1 year on the board.

In her spare time, Ellen enjoys cooking, entertaining friends and fishing.

Shawna – RDH

ShawnaShawna grew up in Hayden Lake and has been a patient of Avondale Dental Center since she was 9 years old. She graduated from Coeur d’ Alene High School in 2003 and went on to study Biology and Psychology at the University of Idaho. She then moved to Florida where she continued her education in dental hygiene.

Shawna and her husband moved back home to beautiful Coeur d’ Alene in 2015 to be close to their families. Avondale dental center is where Shawna fell in love with dentistry and is so grateful to be a part of such an incredible team. She is a part of the Inland Northwest Dental Hygiene Study Club.

When not working Shawna is spending time with her son and husband enjoying anything outdoors. They love to camp, ski, snowshoe, and travel.

Kayleigh – Hygienist

KayleighKayleigh Rickel joined the Avondale team in 2018. She was born in Richland, Washington, but moved to the Coeur d’ Alene area as a teenager. After graduating from Lakeland High School she continued her education at NIC then proceeded to graduate from Carrington College in Boise with an Associates of Science and Dental Hygiene degree in 2013. She participates in various continuing education courses to stay on top of the growing knowledge and advancements in her field.

Kayleigh is married and has a beautiful daughter. They enjoy camping, hiking, rzr riding and spending time with family and friends.

Valerie – Hygienist

Valerie Horn Valerie Horn was born and raised in Coeur d’Alene, ID. She attended Eastern Washington University where she received her Bachelors of Science in Dental Hygiene. Valerie is a member of the Dental Hygiene Association and the American Dental Association. She is passionate about having the opportunity to help others with their oral and overall health.

When she is not working she loves to spend time with her family, hunting and fishing.

Mindy – Hygienist

Mindy BowmerMindy Bowmer has been working with the practice since 2018 and officially joined our team in the summer. She was born and raised just south of Coeur d’Alene and earned her Associates of Science degree from North Idaho College. Mindy went on to graduate from Eastern Washington University with a Bachelor of Science in Dental Hygiene in 2003. She has practiced clinical hygiene locally for 17 years and is excited to a part of our team!

When Mindy isn’t working, you will find her with her husband and two girls camping, hiking, fishing, hunting, horseback riding, or watching the girls play basketball.

Adrienne – COO


Adrienne Anderson is the Chief Operating Officer for the Avondale Dental Group. In this role, Adrienne provides organizational leadership and is responsible for strategy and implementation consistent with the company’s vision.

Before joining the practice in 2017, Adrienne worked in heavy equipment and wood products manufacturing where she served as Human Resources Director and later the Director of Operations. She received her Bachelor’s degree from Montana State University in Bozeman and has been designated as a Professional in Human Resources by the HR Certification Institute.

Adrienne was raised in Bigfork, Montana and has called Hayden Lake home since 2002.  When she is not in the office, you can find her at the yoga studio, enjoying the lake, or walking on the beach in Costa Rica.