​ Yonsim has been working for Sea Mar Behavioral Health in Puyallup since December, 2015. She provides individual therapy for children, adolescents, and adults. She also facilitates therapy groups.

Yonsim received her bachelor's degree from University of Maryland University College-Europe and completed her master's degree with Bowie State University. Yonsim has been holding her associate license in Washington State as a mental health counselor since December, 2015.

As a counselor, Yonsim provides assessment, counseling, education, and crisis intervention to children, adolescents, and adults. Her goal is to continue providing quality treatment and support for clients she serves. ​