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Our Staff

Our Hygienists

Meet our dedicated staff here at Avondale Dental.


Kami Nielsen, RDH

Kami Nielsen has been with Avondale Dental since 2011. Kami was born and raised in the Coeur dʼAlene area. She graduated from Lake City High School early to travel abroad and serve with various outreaches, including the Peace Corp. Upon returning, she continued her education at NIC then attended Dental Hygiene School at Carrington College in Boise, Idaho where she received her Associates of Science and Registered Dental Hygiene license. Kami is a member of the Inland Northwest Dental Hygiene Study Club. She is very passionate about her profession and is excited about the future of dental hygiene and growing with her teammates at Avondale Dental.

Kami has a wonderful husband and beautiful son. They enjoy all things outdoors including camping, hiking, hunting, fishing, and snowmobiling. There is no other place she would rather live or work!


Brenna Cowan, RDH

Brenna 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 Covill, RDH

Ellen 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.


Jennifer Irwin, RDH

Jennifer Irwin R.D.H. has been a hygienist with Avondale Dental since 2001. She was born in Saginaw Michigan but was relocated and raised in the Great Inland Northwest. She graduated from Bremerton high school with honors, attended Wichita State University Dental Hygiene Program also graduating with honors.  She actively participates in the Inland Northwest Dental Hygiene Study Club in Spokane Washington, where she has attended since 2006.  She also is currently participating in the Pinnacle Dental Hygiene Study Club locally here in CDA Idaho. Jennifer is married and enjoys spending time with her friends, children, and two grandchildren. She spends her free time by being involved in church activities, camping, boating/fishing, skiing, and biking. Jennifer also loves animals and is a proud owner of a purebred English chocolate lab named Murray who just happens to love bananas.


Shawna Foulk, RDH

Shawna 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 apart 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 Rickel, Hygienist

Kayleigh 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.


Adrienne Anderson, COO

Adrienne Anderson is the Chief Operating Officer for the Avondale Dental Group. In this role, Adrienne provides organizational leadership and is responsible for business strategy and implementation consistent with the companies 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 on the tennis courts, attending a Zumba class or enjoying the lake!