Our Board Certified Behavior Analyst supervisors provide effective and ethical behavioral intervention services to our clients. Our Seattle BCBA supervisors work to constantly remain updated in their research of autism and autism spectrum disorders to ensure the programs they develop are the most effective possible supported by the best scientific evidence available. Working with each client on a highly individualized level, our Seattle BCBA supervisors provide service both in-home and at our locations.

Clients of Magnolia Behavior Therapy may also work with our ABA Therapists to treat autism. While each ABA therapist possesses his or her own unique qualities and level of experience, each of our ABA Therapists have met minimal criteria. Each Seattle ABA therapist and our therapists in other areas of Washington have completed at least 40 hours of training in Applied Behavior Analysis (ABA) techniques in accordance with the BACB Guidelines for Responsible Conduct for Behavior Analysts, undergone a criminal background check, and completed a minimum of 48 semester hours of college courses in an accredited college or university. Most of our ABA therapists in Seattle and other areas hold a degree in the Behavioral Sciences, Psychology or a related field such as; Education, Human development, or Social Work/Behavioral Health

If you have any additional questions regarding our BCBA supervisors, please do not hesitate to contact us

Ralph Pampino, BCBA
Ralph Pampino, BCBAPresident & Founder

Ralph Pampino is the owner of Magnolia Behavior Therapy. Ralph is a Board Certified Behavior Analyst (BCBA) serving the greater Seattle area with over seven years of experience in the fields of Applied Behavior Analysis and Special Education. Ralph has been applying his expertise in the Seattle and Puget Sound area since December of 2007.

Ralph has extensive experience in educational consulting, functional behavioral assessment, creating and implementing social and academic home programs, parent training, working with school districts, staff member training, the IEP process, and the development and implementation of positive behavior support plans,.

Ralph obtained his Bachelor of Arts Degree in Psychology from Florida State University and his Master of Arts degree in Psychology from the University of the Pacific. While still a graduate student, Ralph published several of his works in refereed academic journals and has presented his work at national and international conferences.

Ralph’s interests in future research and behavioral applications lie in the continued demonstration of behavior analysis as applied to real-life settings, the implementation of customized behavioral assessment techniques in the school and home settings, and the improvement and implementation of organizational behavior management strategies to address team/staff member efficiency, effectiveness and satisfaction.

Magnolia Autism Center Snohomish, WA

Rachel Nevin
Rachel NevinBCBA, Snohomish Regional Director
Rachel first began working in the ABA/Special Education field in 2005 while completing her undergraduate studies at California State University, Sacramento. She was so passionate about her new field, that after completing a Bachelor of Arts in Psychology, she changed her long-term career plans and enrolled in graduate school at the University of Washington. While at the University of Washington, Rachel studied Early Childhood Special Education with an emphasis in Applied Behavior Analysis and completed a Master’s degree and teaching credential. She has enjoyed roles working as a special education teacher in the classroom and as a BCBA on home therapy teams. Rachel is passionate about individualized, child-centered learning and embedding learning into everyday activities and play. She is enthusiastic about all teaching, but especially enjoys training therapists, teaching functional communication to replace challenging behaviors, and collaborating as a team to help each individual reach their goals and the highest quality of life.

Magnolia Autism Center DuPont, WA

Chelsea Travis
Chelsea TravisBCBA, Vice President of Operations
Chelsea is a Supervisor and MAC Coordinator at Magnolia. Chelsea enjoys celebrating with families when their child learns new and valuable skills! She has worked with clients, ages 2-23, with autism and emotional disorders. From managing Saturday Social Groups to supervising in-home therapy, Chelsea seeks to see clients thrive in day-to-day life. When she’s not at the MAC, Chelsea enjoys classic films, the gym, time with friends, and learning to row.
Holli Henningsen-JerdesBCBA, Dupont Regional Director
Holli first began providing ABA services to children with autism and their families in 1997. From the beginning she was passionate about teaching children on the spectrum. Four years later her nephew was diagnosed with PDD-NOS and this prompted her to further her career in the science of applied behavior analysis.

Holli continued to work in numerous home programs and inclusive preschools while she got her undergraduate in speech and hearing sciences from Portland State University. She then earned her masters in teaching as applied behavior analysis from Teachers College Columbia University. Her master’s program focused on a CABAS model of education (Comprehensive Application of Behavior Analysis to Schooling) where ABA and verbal behavior are implemented in a class-wide setting. Upon graduating she not only became a Board Certified Behavior Analyst, but she earned teaching credentials in special education, general education, and early intervention.

In 2007 she began working with Dr. James Partington in the SF Bay Area. Here, she specialized in training and consulting with school districts on ABA and verbal behavior methodologies while simultaneously supervising programs in home, clinic, and community settings. Additionally, she created staff training modules, developed workshops, and presented alongside of Dr. Partington on multiple occasions.

Holli relocated to Olympia, WA with her family in 2015 to begin working for Magnolia Behavior Therapy. She is now the PREP program coordinator and provides ABA services to families in the South Sound region and loves every moment of it! She continues to focus her practice with a verbal behavior emphasis and has a special interest in developing staff training programs. On her days off she loves exploring the Pacific Northwest with her husband and two young children.

Trista Tempke
Trista TempkeM. A., BCBA
Trista Tempke has worked in the field of Applied Behavior Analysis since 2011. She earned her master’s degree in Marriage and Family Therapy at Antioch University. She completed her ABA coursework at Florida Institute of Technology. Trista joined the Magnolia team in June of 2016. Ensuring that her learners work hard, have fun, and build positive relationships with their therapists is of the utmost importance to Trista. In her work, she enjoys employing Skinner’s analysis of Verbal Behavior, and celebrating her learners successes. She finds working with the parents and families of learners fulfilling and an important part of promoting lasting change and generalization of a learner’s skills. Trista has lived in Olympia for ten years. She loves the feeling of community found in the South Sound and the easy access to nature.
Beth Stout
Beth StoutMA, BCBA
Beth Stout has been providing ABA services to children with autism since 2004. She spent five years working for FEAT of Washington’s integrated preschool, Rising Star Academy as the Head Teacher. In 2011, her passion for the field led her all the way to Hong Kong where she spent a year running a full time home school program for a child with special needs and his siblings. When she returned to the U.S., she began working at Magnolia Behavior Therapy in September 2012. she is excited to be serving families in the Olympia/Fort Lewis area where she lives. Beth earned her BA in Environmental Education from Western Washington University and her MA in Education from Antioch University in Seattle. She became a Board Certified Behavior Analyst in 2011. She has a strong background in fluency based instruction, precision teaching and early intensive behavioral intervention. On her days off, Beth enjoys hiking, camping and cooking. She lives in Olympia with her husband and is expecting her first baby in May.

Kitsap County Supervisors

Maple Valley

Spokane Supervisors:

Rhonda Kelsch
Rhonda KelschBCBA
Rhonda enjoys providing and supervising behavior therapy (ABA Therapy) to children and adults. She also teaches parents, caregivers, and school staff how to utilize, and generalize, behavioral strategies for their specific child/client. Rhonda specializes in Behavioral Assessment, Functional Analysis and developing clients strengths through Positive Behavior Support Plans.