Our Strength Lies in Our Team
Sum of Learning, founded in 2013, wouldn’t be what it is without the incredible people behind it. Our team is the reason why we grow, why our clients thrive, and how meaningful change takes root. Since the beginning, our team has grown organically—through intentional, steady growth that prioritizes quality over scale and through a rigorous mentorship and professional development program that shapes confident, compassionate practitioners. Many have been with us for years, offering unwavering support and building lasting relationships that create true continuity of care. They are compassionate, talented, and deeply committed—not just as professionals, but as mentors, teachers, and teammates who genuinely care. We are proud to introduce you to the people who truly make the difference.
Our Leadership Team
Ivy Man Sum Chung
PH.D, LBA, BCBA-D
Founder /
Executive Director
Ivy Man Sum Chung, PH.D., LBA, BCBA
Founder & Executive Director
Languages Spoken: English, Cantonese, Mandarin
Dr. Chung founded Sum of Learning in 2013 with a dual mission: to support culturally and linguistically diverse families and to mentor the next generation of ABA practitioners. Prior to this, she spent five years as part of a pioneering team that established a behavioral health division within a national healthcare organization.
During this period, she gained valuable experience in the administrative and billing aspects of running an ABA business, developed a comprehensive staff training program, and recognized the vital role of mentorship — an insight that ultimately led to the creation of Sum of Learning. A decade later, she continues to fulfill these goals, providing high-quality, compassionate services and fostering a strong growth culture within her organization.
Originally from Hong Kong, Dr. Chung moved to the US to further her education with the career goal of becoming a Child Clinical Psychologist. However, an internship working with a young boy with autism introduced her to ABA, prompting a shift in her career focus. She earned a Master of Education in Special Education in 2008 and became a BCBA. Dr. Chung returned to the University of Washington and completed her Ph.D. under the guidance of Dr. Ilene Schwartz and completed her Ph.D. in 2016, focusing her research on evidence-based staff training, parent coaching, and instructional techniques to increase the efficiency of teaching learners with autism spectrum disorders.
Dr. Chung had the honor of serving as Secretary on the Executive Committee of the Washington Association for Behavior Analysis from 2019 to 2022 and rejoined the committee in 2024 to assist the Executive Committee with the leadership transition. She is also an adjunct faculty member in the ABA graduate program at the University of Washington. She truly enjoys her work as a Behavior Analyst and mentor, and feels blessed to be surrounded by a team of compassionate individuals and practitioners at Sum of Learning. Outside of work, she cherishes spending time with her family and traveling around the world.
Katy Anderson
M.Ed., LBA, BCBA
Director of Early Intervention Services
Katy Anderson, M.Ed., LBA, BCBA
Director of Early Intervention Services
Languages Spoken: English
Specialization: Early Intervention, Early Start Denver Model, Naturalistic teaching, social skills, play skills, parent coaching.
Sum of Learning Journey:
- 2014-2019: Program Supervisor
- 2019-2021: Clinical Supervisor
- 2021-Present: Director of Early Intervention Services
Katy’s first job post-undergrad was working for a small ABA company providing in-home services, which led her to next role at the University of Washington as a therapy assistant for the Early Start Denver Model study (ESDM). She fell in love with early intervention and the ESDM. This position shaped her career, as it motivated her to go back to school to earn her Master’s in Special Education and Applied Behavior Analysis. Upon graduation from the University of Washington, Katy joined Sum of Learning in 2014. Katy is currently the Director of Early Intervention Services, where she supports all clients under the age of seven, oversees SoL’s Early Intervention Program, and trains and mentors Therapy Assistants and Program Supervisors. After 10 plus years in ABA, she continues to be passionate about working with children and in early intervention, using the ESDM, and being a mentor for others. In her free time, Katy enjoys going to concerts, watching the Seahawks and Sounders games, and playing with her two cats.
Stephanie Kamel
M.Ed., LBA, BCBA
Director of Clinical
Services
Stephanie Kamel M.Ed, BCBA, LBA
Director of Clinical Services
Languages Spoken: English
Specialization: Adolescents, young adults, challenging behaviors, life skills, social skills
Sum of Learning Journey:
2014-2019 Program Supervisor
2019-2021: Clinical Supervisor
2021-Present: Director of Clinical Services
Anna Levin
M.Ed., LBA, BCBA
Director of Professional Development
Anna Levin, M.Ed., LBA, BCBA
Director of Professional Development
Languages Spoken: English
Specialization: Early intervention, school-aged children, challenging behaviors, naturalistic teaching, discrete trial teaching, feeding, social skills.
Sum of Learning Journey:
- 2016-2019: Program Supervisor
- 2019-2021: Clinical Supervisor
- 2021-Present: Director of Professional Development
Anna discovered her passion in working with children with disabilities as a volunteer in high school. After receiving her bachelor’s degree in psychology at Western Washington University in 2012, she stumbled into the world of ABA by providing early intervention services to a family in Bellingham. Eager to develop her skills and learn more about the field, Anna continued her education in the University of Washington’s Special Education – Applied Behavior Analysis Program. She subsequently earned her BCBA in 2015 and has thoroughly enjoyed her work since.
In 2016, Anna joined Sum of Learning while also working part-time at Seattle Children’s Hospital in the Biobehavioral and Feeding programs. After three years of training at Children’s, she transitioned to full-time at Sum of Learning to focus on her clinical cases and mentorship responsibilities. Anna specializes in assessing challenging behaviors, developing compassionate and comprehensive behavior support plans, and implementing feeding interventions to improve mealtime routines. She is particularly passionate about compassion and assent-based practices, as well as providing neurodiversity-affirming care to learners and their families. As the Director of Professional Development at Sum of Learning, Anna is dedicated to training and mentoring the next generation of behavior analysts, instilling in them these values and practices. Anna is proud to be part of the Sum of Learning’s team. She looks forward to the ongoing growth and learning experiences both she and the company will continue to embrace together. Outside of work, she enjoys kayaking, crocheting with her cat, and baking fresh bread.
BCBA Supervisors
Eriko Fujimura
M.Ed., LBA, BCBA
Program Supervisor (PS)
Eriko Fujimura
Program Supervisor (PS)
Languages Spoken: English, Japanese
Specialization: Early intervention, Early Start Denver Model, naturalistic teaching, discrete trial.
Sum of Learning Journey:
- 2015-2020: ABA Therapy Assistant
- 2020-2021: Assistant Program Supervisor
- 2020-Present: Program Supervisor
Originally from Tokyo, Japan, Eriko moved to the U.S. in 2007 to further her education after high school. Eriko’s early career started when she worked with at-risk youth, school-aged children, and their families in the field of social work, including a juvenile detention center and an after-school program for low-income families. She earned both her Bachelor’s and Master’s degrees in Social Work from the University of Washington in 2013 and in 2015 respectively. During her practice in social work, she gained experience in mentoring and running social groups for school-aged children with emotional, mental, and behavioral challenges. Upon graduating with her master’s degree, she took a job at Sum of Learning in 2015 and that changed her career path. While working at Sum of Learning for 4 years as an ABA therapy assistant, Eriko had worked with culturally diverse children with autism of various ages, from 2 to 18 years old. Fueling her passion, Eriko returned to the UW and earned her second Master’s degree in Special Education and became a Board Certified Behavior Analyst in 2019. Eriko is passionate about working with young children with autism, focusing on social and play skills while fostering positive rapport with her clients. Her training is deeply rooted in naturalistic teaching and the Early Start Denver Model. Eriko finds immense joy in witnessing her clients’ growth and progress. When she is not working, she can be found at farms, parks, or farmers markets and chasing after her own toddler.
Suzanne Jones
M.Ed., LBA, BCBA
Program Supervisor (PS)
Suzanne Jones, M.Ed., LBA, BCBA
Program Supervisor
Languages Spoken: English
Specilization: Adolescents, young adults, challenging behaviors, life skills.
Sum of Learning Journey:
- 2015-2019: ABA Therapy Assistant
- 2020-2021: Assistant Program Supervisor
- 2021-Present: Program Supervisor
Suzanne was born and raised in Seattle, Washington. She ventured out of Seattle for college and attended Western Washington University, where she received her Bachelor’s degree in Communication Sciences and Disorders in pursuit of becoming a Speech-Language Pathologist. While working towards her undergraduate degree, Suzanne gained experience working with adults with autism and other developmental disabilities as a Living Skills Specialist. After graduating in 2015, she returned back to Seattle and joined Sum of Learning as an ABA Therapy Assistant. It was during this time that she discovered her passion for Applied Behavior Analysis (ABA) and decided to further her education. Suzanne graduated from the University of Washington with her Master’s in Special Education with emphasis in Applied Behavior Analysis and became a Board Certified Behavior Analyst in 2019.
Suzanne is dedicated to improving the lives of the individuals she works with, specializing in management of challenging behaviors and supporting adolescents on the autism spectrum as they transition to adulthood.
In her free time, she likes to hang out with her dog, watch Netflix, workout and spend time with family and friends.
Karen McAllister
M.Sc., LBA, BCBA
Program Supervisor (PS)
Karen McAllister M.Sc., LBA, BCBA
Program Supervisor (PS)
Languages Spoken: English
Specilization: Early intervention, Early Start Denver Model, Naturalistic teaching
Sum of Learning Journey:
- 2016-2018: ABA Therapy Assistant
- 2018-2019: Assistant Program Supervisor
- 2019-Present: Program Supervisor
Karen left the IT business world behind in 2005 to pursue a more personally fulfilling career and to realize her dream of working with children. Originally from Ireland, she studied full time for her Psychology degree and graduated with a Masters in Applied Psychology from Trinity College Dublin in 2010. After graduation, Karen gained invaluable experience as a tutor in a specialized school for children with autism, witnessing firsthand the significant positive impact of ABA techniques on their lives and their families.
After moving to Seattle in 2013, Karen initially worked with a research team in the University of Washington (UW) investigating a reading intervention for children with autism. She later joined Sum of Learning as a behavior technician in early 2016, gaining experience in home, clinic and educational settings, specializing in working with younger clients and early intervention techniques. In 2018, Karen became a Board Certified Behavior Analyst after completing coursework and supervision through the University of Washington’s ABA graduate program.
In addition to watching classic black and white movies, doing puzzles and video games, Karen enjoys taking bike rides through Marymoor Park, browsing through Pike Place Market and heading off on road trips to discover more of the stunning Pacific Northwest.
Iris Wang
M.Ed., LBA, BCBA
Program Supervisor (PS)
Iris Wang, M.Ed., LBA, BCBA
Program Supervisor
Languages Spoken: English, Mandarin
Specialization: Early intervention, Early Start Denver Model, naturalistic teaching, play skills, social skills
Sum of Learning Journey:
- 2017-2020: ABA Therapy Assistant
- 2020-2021: Assistant Program Supervisor
- 2021-Present: Program Supervisor
Originally from Taipei, Taiwan, and initially set on the path of majoring in business at the University of Washington, Iris found her passion in psychology in PSYCH 101 of her freshman year. In her PSYCH classes, she found joy in dissecting everyday life and human conditions through a scientific lens.
During her junior and senior years of college, Iris worked at Seattle Children’s, where she coded parents and children’s behaviors in dialogical reading videos. With this job, she was trained to critically examine behavioral nuances. It was during her volunteer work as an Assistant Teacher at a preschool and two elementary schools that Iris realized her calling to work with children. While volunteering, she met a student with developmental delay. Iris witnessed the challenges faced by this student due to limited resources and support, and she was determined to find better solutions for children with special needs.
After graduating from the University of Washington in 2017, she joined Sum of Learning as an ABA Therapy Assistant, and found ABA to be the solution she had been seeking. Passionate about the science of ABA, Iris returned to the University of Washington and earned her Master in Special Education and became a Board Certified Behavior Analyst in 2020. As a TA and now a Program Supervisor, she collaborates with the families, and utilizes ABA to teach children a wide range of skills. This role allows her to provide long-term and individualized learning support to the children and improve the quality of life for them and their families.
In her free time, she loves taking her two dachshunds to all the wonders of the world with her husband
Alex Raabe
M.Ed., LBA, BCBA
Program Supervisor (PS)
Alex Raabe, M.Ed., LBA, BCBA
Program Supervisor (PS)
Languages Spoken: English
Specialization: Early intervention, school-aged children, naturalistic teaching, social skills
Sum of Learning Journey:
- 2018-2020: ABA Therapy Assistant
- 2020-2021: Assistant Program Supervisor
- 2021-Present: Program Supervisor
Alex discovered ABA while working in an inclusive early education center during the time that she attended UC Davis, where she earned a bachelor’s degree in Human Development. Excited to learn more, she began working as a Behavior Technician, providing in-home ABA therapy to young children diagnosed with ASD and quickly saw the positive impact it made for them and their families.
Soon after moving to Washington, Alex joined Sum of Learning as an ABA Therapy Assistant in 2018. She earned a master’s degree in Education with a concentration in Curriculum and Instruction and ABA from Arizona State University in 2019 and subsequently earned her BCBA in 2020.
Alex is fond of the individualized approach that ABA offers and especially enjoys using naturalistic teaching to work on social and communication skills with school-aged children in their home and school settings. When Alex is not working, she spends her time exploring the PNW with her Golden Retriever, reading, doing puzzles, and enjoys being with friends and family.
Danny Milovanovic
M.Ed., LBA, BCBA
Asst. Program Supervisor (aPS)
Danny Milovanovic, M.Ed., LBA, BCBA
Assistant Program Supervisor
Languages Spoken: English
Specialization: School-aged children, naturalistic teaching, social skills, play skills, discrete trial teaching
Sum of Learning Journey:
- 2019 – 2024: Therapy Assistant
- 2024 – Present: Assistant Program Supervisor
Danny’s roots in ABA started while he was pursuing an undergraduate degree in Child Development at the University of Washington, where he first learned the basic principles of Applied Behavior Analysis. After earning his bachelor’s degree in Psychology, Danny was not content with what he had learned and felt inspired to delve deeper into the practical applications of ABA. With the excitement to venture further, Danny joined Sum of Learning in 2019, where he quickly witnessed the positive impact of ABA on families, clients, and other stakeholders.
Danny continued to advance his professional development within Sum of Learning, completing his Master’s in Education at the University of Washington in 2023 and earning his BCBA in 2024. He is excited to transition into his role as a BCBA and is dedicated to implementing individualized approaches for each of his clients. Building rapport with clients and families is a priority for Danny, as he believes it is essential for effective and efficient treatment. His foundation in teaching social and play skills is rooted in naturalistic methods.
In his free time, Danny loves watching and playing basketball, baking goodies, watching silly movies with friends, and exploring unique food spots in the Seattle area.
Susmita Sitaram
M.Phil, LBA, BCBA
Program Supervisor (PS)
Susmita Sitaram, M.Phil, BCBA, LBA
Program Supervisor (PS)
Languages Spoken: English, Hindi, Tamil, Telugu
Specilization:Early intervention, Early Start Denver Model, Play Skills.
Sum of Learning Journey
- 2018-Present: Program Supervisor
After completing high school, Susmita pursued psychology with a passion for working with young children. She earned her Masters and M.Phil in Clinical Psychology from India and started her career in a mental health setting for individuals with conditions like anxiety, depression, and substance use. Always eager to learn and explore new opportunities, Susmita transitioned to working with an early interverntion center for autism in India. In 2014, she made the move to Seattle, where she continued to develop her skills using the Early Start Denver Model. After completing her coursework in Applied Behavior Analysis, she became a Board Certified Behavior Analyst in February 2017.
Joining Sum of Learning in February 2018, Susmita is grateful to be part of a passionate and caring team, and aspires to continually grow as a professional. She specializes in working with young children with autism, focusing on naturalistic teaching, social and play skills, and ensuring a fun learning experience. Drawing from her experience as a parent, Susmita brings empathy and compassion to her work with families. Outside of work, she enjoys listening to music, singing, and reading stories to her young son.
Sierra Strege
M.Ed., LBA, BCBA
Asst. Program Supervisor (aPS)
Sierra Strege, M.Ed., LBA, BCBA
Assistant Program Supervisor (aPS)
Languages Spoken: English
Specialization: Early intervention, school-aged children, social skills, naturalistic teaching
Sum of Learning Journey:
- 2021- 2025: ABA Therapy Assistant
- 2025-Present: Assistant Program Supervisor
Sierra began her journey in Applied Behavior Analysis (ABA) in 2019 as a therapy assistant at a small clinic in Bellingham. Eager to expand her knowledge, she moved to Maple Valley, where she provided services in home, clinic, and community settings before being promoted to lead therapy assistant. In 2021, she relocated to Seattle to further her education and joined Sum of Learning in the fall.
Sierra holds a bachelor’s degree in Speech and Hearing Sciences and a master’s degree in Special Education with an emphasis in Applied Behavior Analysis from the University of Washington. She is passionate about continuous learning and is committed to collaborating with clients and their families with compassion and care.
When the sun is shining, Sierra enjoys hiking, painting, and discovering new restaurants with friends and family.
Marissa Allen,
M.A., LBA, BCBA
Asst. Program Supervisor (aPS)
Marissa Allen, M.A., LBA, BCBA
Assistant Program Supervisor
Languages Spoken: English
Specialization: Naturalistic teaching, challenging behaviors, social skills, early intervention, School-aged children, play skills.
Sum of Learning Journey:
- 2022-2024: ABA Therapy Assistant
- 2024 Present: Assistant Program Supervisor
Marissa found her passion for helping others when studying her undergraduate degree in Psychology at the University of Texas at San Antonio. Shortly before graduating with her bachelors, she began cultivating her professional career at the San Antonio State Hospital. This opportunity sparked her interest in working with neurodiverse children. In 2021, Marissa’s newfound interest opened up a door to a new work opportunity at an ABA clinic in San Antonio, Texas. She hit the ground running and fell in love with the field. Shortly thereafter, Marissa decided to embrace her tenacity for ABA by pursuing a Masters’s degree in Applied Behavior Analysis at Ball State University. In 2022, she moved to Washington state to join the Sum of Learning team as an ABA Therapy Assistant while continuing her BCBA coursework. Marissa graduated with her Masters in 2023 and went on to become a BCBA in 2024.
Marissa has extensive experience working with a broad range of clients, ranging from two to seventeen years of age across a variety of environments, which include home, school, and clinic settings. As a practitioner, Marissa takes pride in cultural inclusion and enjoys helping her clients develop social skills and tools for managing challenging behaviors through naturalistic teachings.
In her free-time, Marissa is passionate about traveling and experiencing new cultures. She also has a deep love for animals, camping around the pacific northwest, and practicing aerial yoga. She is eager to continue her growth in the ABA field and has aspirations to help develop the field itself over the course of her career.
Ruoying Song
M.Ed., LBA, BCBA
Program Supervisor (PS)
Ruoying Song, M.Ed., LBA, BCBA
Program Supervisor (PS)
Languages Spoken: English, Mandarin, Danish
Specialization: Early intervention, Early Start Denver Model, Naturalistic Developmental Behavioral Interventions
Sum of Learning Journey
- 2022-2023: Assistant Program Supervisor
- 2024-Present: Program Supervisor
Ruoying began her career in the field of ABA when she was working in the Experimental Education Unit (EEU)of the University of Washington, which ignited her passion for working with learners on the spectrum and others with developmental delays. She then worked mainly with young children and school-aged learners in school, clinic, and community settings. Ruoying graduated from the University of Washington and became a Board Certified Behavior Analyst in 2022. She is particularly interested in and enjoys using naturalistic developmental behavioral interventions with young learners to support them in learning meaningful skills. She is passionate about implementing interventions in a responsive, collaborative, and humble manner. In her free time, Ruoying enjoys exploring the Pacific Northwest and watching soccer.
Mira Chi
M.Ed., LBA, BCBA
Asst. Program Supervisor (aPS)
Mira Chi, M.Ed., LBA, BCBA
Program Supervisor (PS)
Languages Spoken: English, Mandarin
Specialization: Early intervention, school-aged children, social skills, play skills, naturalistic teaching
Sum of Learning Journey:
- 2023-2024: ABA Therapy Assistant
- 2025-Present: Assistant Program Supervisor
Mira is originally from Taiwan, where she earned her bachelor’s degree in 2020. She then moved to China to work in special education, where she was trained in Pivotal Response Training (PRT) and provided one-on-one ABA services in a clinic setting for children ages 3 to 7, as well as leading social skills groups.
Driven to deepen her expertise and receive more structured training, Mira moved to the United States in late 2022 to pursue a master’s degree in Applied Behavior Analysis at the University of Washington. She graduated in the summer of 2024 and earned her BCBA certification in August. She completed her practicum at Sum of Learning, where she focused on naturalistic teaching and early intervention.
In her free time, Mira enjoys relaxing with her Norwegian Forest cat, Charko, watching ballet performances, building with LEGO, and exploring Seattle’s outdoors through paddleboarding and snowboarding.
Michelle Damas
M.Ed., LBA, BCBA
Program Supervisor (PS)
Michelle Damas, M.Ed., LBA, BCBA
Program Supervisor
Languages Spoken: English
Specialization: Early intervention, social and play skills, caregiver training, language development, discrete trial training and naturalistic teaching.
Sum of Learning Journey:
- 2023-2024: Assistant Program Supervisor
- 2024-Present: Program Supervisor
Michelle’s journey in Applied Behavior Analysis (ABA) began in 2003 when she started as an instructional therapist in a small ABA clinic in California, where she also earned her BCaBA certification. She completed her undergraduate studies in Psychology at the University of California, Santa Cruz in 2001 and went on to earn her Masters in Special Education from California State University, San Francisco in 2017. Michelle continued her professional development by completing her BCBA coursework in Behavior Analysis through Florida Institute of Technology in 2021 and obtained her BCBA in 2024.
Michelle specializes in teaching social and play skills, functional communication, verbal behavior, and adaptive behavior skills for preschool children in diverse settings. She has a wealth of experience in parent coaching, developing positive behavior support plans, and collaborating with multidisciplinary teams. Michelle is trained in discrete trial training, direct instruction, and naturalistic teaching. She values cultivating fun and creative learning experiences for clients and is constantly learning how to be a better behavior analyst.
In her free time, Michelle loves exploring the outdoors with her husband, two daughters, and dog. She also enjoys photography, Harry Potter, and tacos.
Clinical Support Team
Marisa Schlemper
M.Ed., LBA, BCBA
Clinical Operations Manager
Marisa Schlemper
Clinical Operations Manager
Languages Spoken: English
Specialization: Adolescents, social skills, challenging behaviors
Sum of Learning Journey:
- 2017-2019: ABA Therapy Assistant
- 2020-2021: Assistant Program Supervisor
- 2021-Present: Program Supervisor
- 2022-2024: Clinical Coordinator
- 2025-Present: Clinical Operations Manager
Marisa is the Clinical Operations Manager at Sum of Learning. Her journey with Applied Behavior Analysis (ABA) began at the North Dakota Autism Center, where she worked for two years, fostering her passion for supporting individuals with autism. In 2016, Marisa made the move to Seattle and joined Sum of Learning as an ABA Therapy Assistant in March 2017. Since then, she has seized numerous opportunities for professional growth within the organization.As a Program Supervisor, Marisa specializes in teaching social skills and executive functioning skills to late-elementary to high-school-aged clients. Marisa attended undergrad at Concordia College in Minnesota where she received her undergraduate degrees in Neuroscience and Psychology with a minor in Chemistry. In 2019, she completed her Masters in Education at the University of Washington and became a Board Certified Behavior Analyst in 2020. Outside of her role at Sum of Learning, Marisa enjoys indulging in reading, capturing moments through photography, camping adventures, and exploring the scenic wonders of the Seattle area
Autumn McCart
Lead Therapist
Certified Behavior Technician
Autumn McCart, CBT
Certified Behavior Technician (CBT)
Languages Spoken: English
Sum of Learning Journey:
- 2020 – 2022: ABA Therapy Assistant
- 2023 – Present: Lead Therapy Assistant
Autumn joined Sum of Learning in June 2020 after graduating from the University of Washington with a bachelor’s degree in Medical Anthropology and Global Health. She started her journey as a therapy assistant and transitioned to her current role as Lead TA in 2023. Autumn’s favorite aspect of her job is the Early Intervention Program, which she helped pilot in the fall of 2021 and has been actively involved in developing since then.
In her role, Autumn not only works closely with clients but also supports the clinical team by assisting with scheduling, creating clinical materials, and ensuring the organization and cleanliness of the clinic.
During her free time, Autumn enjoys playing games with her fiancé, working on puzzles next to her axolotl, Juno, and doing crafts on her deck.
Rachel Mannikko
Lead Therapist
Certified Behavior Technician
Rachel Mannikko
Lead Therapist
Languages Spoken: English
Sum of Learning Journey:
- 2023-2024: ABA Therapy Assistant
- 2024-Present: Lead Therapy Assistant
Rachel’s dedication to working with children began early through experiences in nanny-ing, youth group volunteering, and summer camp work. Knowing from a young age that she wanted a career focused on helping children, she pursued a Bachelor of Science in Psychology with a minor in Applied Mathematics and a Spanish certificate from Boise State University. Upon moving back to Washington after graduating in 2018, she worked as a Home Care Aide for a teenager with global developmental delay, marking the start of her journey into the field of ABA. Shortly after, she became a CBT, where she discovered the significance of ABA.
Now a Lead Therapy Assistant at Sum of Learning, Rachel is often the first point of contact for families seeking ABA services. She handles inquiry calls, explaining our services and guiding families through the intake process to ensure a smooth start. Additionally, Rachel is a vital part of the orientation team, conducting onboarding trainings and providing support for new staff to help them feel welcomed and prepared.
One of Rachel’s favorite aspects of Sum of Learning is the strong network of support and commitment the entire staff puts into their work. There has not been a moment in her time at Sum of Learning that she has felt unsupported in her role. Being surrounded by people passionate about their work makes everyone a better provider.
Currently, Rachel is pursuing her Master’s in ABA at the University of Washington, set to graduate in spring 2026. She looks forward to advancing her career, continuing to build meaningful relationships, and making a positive impact on those she works with while upholding cultural and ethical professionalism.
In her free time, Rachel enjoys spending time with her niece and nephews, reading, or rewatching The Office with her cat
Danielle Logan
Lead Therapist
Certified Behavior Technicain
Danielle Logan, CBT
Certified Behavior Technician
Languages Spoken: English
Sum of Learning Journey:
- 2023-2024: ABA Therapy Assistant
- 2024-Present: Lead Therapy Assistant
Danielle’s passion for teaching began at a young age, as she actively sought opportunities to help, teach, and train others throughout her schooling and into adulthood. In 2020, she became a Toddler Twos Teacher at a Montessori academy, where she discovered her interest in Applied Behavior Analysis (ABA). Since entering the field, Danielle has prioritized delivering compassionate, efficient, and enjoyable services for clients and their families.
Sum of Learning has been a pinnacle of growth for Danielle and her aspiration to learn more about naturalistic teaching techniques. Working alongside Director Katy Anderson and the Early Intervention team has been a highlight of her ABA career, and she takes pride in being part of a team that consistently upholds the company’s values.
As a Lead Therapy Assistant at Sum of Learning, Danielle is a crucial member of the orientation team, leading onboarding trainings and serving as a support for incoming staff. She also helps maintain clinic organization by overseeing inventory and ensuring new hires feel prepared and supported in their roles.
In her free time, Danielle enjoys spending time in nature—rollerblading, biking, walking her dog, and hiking. She also loves attending live music events, practicing yoga, visiting museums, watching documentaries, and reading.
Administrative Support
Lauri Keegan
Office Manager
Lauri Keegan
Office Manager
Languages Spoken: English
Specialization: Medical billing, service authorizations, payment collections, revenue cycle management
Sum of Learning Journey:
- 2018-Present: Office Manager
Lauri has found her home at Sum of Learning and is enthusiastic about being part of such a dynamic team. She enjoys collaborating with colleagues, including the Executive Director, BCBAs, and Therapy Assistants. As the medical billing manager, she oversees the billing process and helps ensure the office runs smoothly and complies with regulations.
Lauri has discovered a passion for helping others navigate the complexities of medical billing and credentialing. She is always happy to answer questions about insurance and billing for families. In the ever-evolving field of ABA, Lauri is constantly learning something new, which keeps her engaged.
Originally from California, Lauri now resides in Redmond. She is grateful that her Golden Retriever, Daisy, accompanies her to the administrative office, providing much-needed comic relief. With a B.A. in psychology, Lauri’s interest in human behavior led her to start doing medical billing and bookkeeping for a private practice while completing her degree. She enjoyed this work so much that she decided to continue her career in the field.
In her free time, Lauri enjoys exploring local parks with Daisy (especially Marymoor!). She also loves yoga, meditation, reading, and writing. Her favorite pastime is spending time with family and friends, particularly cooking up delicious meals together at family reunions!
Flora Huang
Account Specialst
Flora Huang
Account Specialist
Languages Spoken: Cantonese, English, Mandarin
Sum of Learning Journey:
- 2021–Present: Accounting Specialist
Kellie Jansen-Fowler
Human Resources Specialist
Kellie Jansen-Fowler
Human Resources Specialist
Languages Spoken: English
Sum of Learning Journey:
- 2023-Present: HR Specialist
Originally from New York and California, Kellie moved to Austin, Texas, to pursue her B.A. in Psychology and Consumer Science from Texas State University. During her studies, she worked as a tutor in a boarding school setting for elementary, middle, and high school students, and served as a mentor/tutor for international students ages 10–18, helping them adjust to American culture and the education system.
After graduation, she moved to Washington and quickly transitioned into the ABA field, working as an ABA Therapy Assistant (CBT and RBT) for two ABA companies over five years before entering the Human Resources field in 2021. Kellie is passionate about ABA and education and believes her background and skills are better utilized in HR within an educational or healthcare setting. In her free time, she enjoys distance running, playing futsal (a form of soccer), hiking, and spending time with family, friends, and her Australian Shepherd, Harbor.