Meet the Team

Board-certified Clinicians & Therapists

Amy Adkins-Dwivedi


In the early years of her career, Amy worked extensively with medically-underserved populations, and worked in a pediatric emergency room and private primary care office.


Amy received her graduate degree and a fellowship for Leadership and Education in Neurodevelopmental disabilities from The Ohio State University. Amy specializes in pediatric behavioral/mental health.


In addition to her clinical works, Amy enjoys community outreach, mentoring and teaching. 

Mark Harnpadoungsataya


Arnuchar “Mark” earned his Master of Science in Nursing from Gonzaga University and his Bachelor of
Science in Nursing from Seattle University. Of his 10 years as a nurse, 6 years were practiced at Seattle Children’s Hospital where he also received acceptance into the Advance Practice Provider Fellowship.

Following an undergraduate nursing mission to Belize, Mark found passion in working with the
underserved population as well as in adolescent medicine; addressing the challenges of maintaining a
healthy mind and body are integral for successful transition into adulthood. As a result, Mark enjoys
working in the pediatric population to collaborate with patients and caregivers in creating the best-
individualized care plan possible.


In his free time, Mark enjoys training for half marathons (hopefully, a future full marathon) spending
time with his family, hiking, and eating whatever he can get his hands on!

Katie Kalmes


Katie is a Pacific Northwest transplant by way of North Carolina and Alaska.  The plan was to spend a year in Washington and move onto other adventures, but it has been almost a decade since she arrived.


She received her Master of Public Health from East Carolina University and her Master of Science in Nursing from Seattle University.


Prior to graduate school, Katie worked in early intervention coordinating resources for families and providing home based services to enhance early learning and development.  Additionally, she taught childbirth classes for many years to expectant parents and caregivers. She uses her background in education and child development as the cornerstone of her approach to provision of high quality care to the pediatric population.


Katie leads a busy life when away from the practice.  She is married and the mother of two young children. In her free time, she enjoys camping, traveling, and reading.

Brianna Rice


Marcus Toomey


Kevy Wijaya


Kevy received his training pediatric primary care at Yale University. His extensive history of working in a pediatric Emergency Department, as well as in the primary care settings have provided him with a strong clinical base. 

Kevy especially enjoys with families who hailed to the greater Bellevue & Seattle area from all around the world. His advocacy reaffirms his interest of culturally-competent care and diversity in medicine, and his clinical and research interest have been revolving around the human papillomavirus (HPV) vaccine and the nuts and bolts of LGBT parenting. 


Currently, Kevy is pursuing an additional MSc degree in Global Health and Infectious Diseases from the University of Edinburgh. In his spare time, Kevy spends time with his pet chinchillas and likes to travel to new and exotic places (ask him about his recent trips!), cooking, hiking and gardening. 

Marcus holds a Master's in Clinical Mental Health Counseling from City University of Seattle and a Bachelor of Arts in multidisciplinary studies and humanities from Western Washington University.


Both stops on his educational journey helped him develop a focus on culturally competent care that focuses on relational skills, patients feeling accepted and heard in therapy, and supporting the needs of those who struggle to advocate for themselves.  


His experience includes work with adults and children with developmental diversities, LGBTQIA+ patients, and family systems. Marcus is trained in cognitive behavioral therapy, sexuality expression and sexual wellness, a number of models of play therapy, and care for those with traumatic pasts. 

In his spare time he can be found playing Magic: The Gathering, hiking, running, making music, and always looking for the best burrito out there. 

Brianna holds a Master’s Degree in Social Work with over 15 years of experience in behavioral mental health environment. Most recently, she worked as a behavioral specialist and behavioral interventionist for children with varying diagnoses such as autism spectrum disorder, learning disabilities, oppositional defiant disorder, attachment disorders, maltreatment disorders and trauma exposure and/or post-traumatic stress disorder.


Brianna has had extensive training in regulation tools, emotional identification and recognition. As a social worker, she firmly believes in the value of emotional-focused therapy and cognitive behavioral therapy as the most effective treatment modalities in treating behavioral health symptoms.

In her spare time, she enjoys cooking, traveling, hiking and gardening with her beautiful 6-year-old son.

© 2020 by Stepping Stone Pediatrics

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