Our Clinical Team

Ivy Chung, Ph.D., BCBA-D

Executive Director
Founded Sum of Learning in 2013
Dr. Ivy Chung is a Board Certified Behavior Analyst and the founder of Sum of Learning. She specializes in parent coaching, staff training, and Applied Behavior Analysis (ABA) intervention for children with autism spectrum disorder and other related developmental disabilities. She has practiced Applied Behavior Analysis for over 10 years, providing direct services and supporting families and school teachers in the use of evidence-based autism treatments.

Originally from Hong Kong, Dr. Chung moved to the U.S. in 2002 to continue her education after graduating from high school. She is a proud Husky, earning all three degrees from the University of Washington: a bachelor’s degree in Psychology, master’s and doctoral degrees in Special Education/Applied Behavior Analysis. During graduate school, Dr. Chung engaged in research that examined evidence-based parent coaching and staff training, and instructional techniques that improved efficiency of instruction for learners with autism spectrum disorders.

Dr. Chung has dedicated her career to the ABA and autism fields. Prior to founding Sum of Learning, Dr. Chung was part of a pioneer team to establish a behavioral health division for a national healthcare organization. She has written articles for healthcare blogs on topics such as improving home safety for children with autism, and use of ABA treatment for autism. She has presented and conducted workshops in professional conferences such as the APBA Convention by the Association of Professional Behavior Analyst. Her commitment goes beyond the United States, where she has also provided workshops and consultation to ABA agencies in Hong Kong and Canada. Dr. Chung is also proud to be part of the team at the Haring Center’s Professional Development Unit of the University of Washington in offering workshops and webinars to ABA practitioners.

Program Supervisors


Katy Anderson, M.Ed., BCBA

Joined Sum of Learning in 2014
Specialization: Early Start Denver Model, naturalistic teaching, early intervention, social skills, play skills
Katy's initial interest in autism began in high school when she read an article in her local newspaper about a child with autism. Following her interests, she received her Bachelor of Science in Psychology from Washington State University in 2008. After she completed her degree, Katy started working as an in-home therapy assistant with children with autism using Applied Behavior Analysis techniques (ABA).

Eager to learn more, Katy took a position with the University of Washington Autism Center as a research assistant using the Early Start Denver Model (ESDM) for young children. She worked for the Autism Center for three years and enjoyed the teaching methods of the Early Start Denver Model. In 2013, inspired by her experience at the Autism Center, she pursued her Master’s degree in Special Education with a concentration in ABA from the University of Washington. While working towards her Master’s, Katy continued to provide in-home therapy and worked with a community- based social group for children with autism.

Stephanie Kamel, M.Ed., BCBA

Joined Sum of Learning in 2014
Specialization: Adolescents, school aged children, challenging behaviors, social skills, naturalistic teaching, direct instruction
Stephanie entered the field of education in 2009 as a teacher in an inclusive preschool setting, and has since gained experience working with individuals in many age groups including adolescents, teenagers and young adults. After earning a bachelor’s degree in Human Development and Early Childhood Education from Washington State University in 2012, she went on to earn a master’s in Special Education with an emphasis on Applied Behavior Analysis from the University of Washington in 2014.  She began her career in applied behavior analysis as a therapy assistant in 2010, and fell in love with working directly with individuals and their families in home, school and community settings. Stephanie has experience in discrete trial training, naturalistic instruction, behavior management strategies, parent coaching and precision teaching.

Stephanie’s academic and work experiences have provided her the unique opportunity to observe and experience the immense impact that high quality services can have on the lives of individuals with Autism and other disabilities, and she is truly passionate about the fact that all people are capable of learning and progressing, regardless of how affected by their disability they may be.

Caitlin Fish, M.Ed., BCBA, M.H.P.

Joined Sum of Learning in 2015 as a TA, promoted to Program Supervisor in 2016 Specialization: Early intervention, naturalistic teaching, augmentative and alternative communication, discrete trial teaching, social skills
Caitlin’s interest in working with children with autism began during her social work undergraduate internship at a mental health agency. After graduating in 2012, she began working as an Applied Behavior Analysis (ABA) therapy assistant using the Early Start Denver Model for young children. She was also trained in multiple ABA-based treatment approaches including Precision Teaching, naturalistic teaching, and discrete trial teaching. During her practice as an ABA therapy assistant, Caitlin had worked with children as young as 2 years old, and also adolescents and young adults. After gaining more experience with varying degrees of autism, falling in love with the field of ABA, and wanting to further her knowledge and expertise, Caitlin pursued her Master’s degree in Special Education with a focus on Applied Behavior Analysis from the University of Washington, and became a Board Certified Behavior Analyst in January 2016.

Caitlin is passionate about her work with children with autism and continually strives to grow as an ABA practitioner. Her background in social work, psychology and applied behavior analysis gives her multidimensional framework for working with her clients. She has experience with parent, child, and family-centered coaching, as well as working closely with client’s schools and other community base organizations to create multiple supportive environments.  

Morgan Bartholomew, M.A.

Joined Sum of Learning in 2016
Specialization: Executive functioning, verbal behavior, social skills, behavior management
Morgan’s passion for working with individuals with ASD stems from her younger brother who was diagnosed with autism at the age of 3. During that time, home ABA services were rare, so her mom ran her own team and programming. Because of this experience, she grew up using ABA in all areas of her life and has become dedicated to helping individuals become independent and successful. Throughout her life, she has sought to help individuals with special needs in any way she can. After graduating from the University of Oregon with a degree in Educational Foundations, she relocated to California where she was able to start working as a therapist for an ABA company. During this time, she was exposed to interventions that focused on verbal behavior and behavior management. After working for several years in the field, she decided to pursue her masters and become a BCBA. Since graduating from Ball State University with a masters in ABA with an emphasis in autism, she and her husband relocated to Seattle. She is looking forward to learning her way around, reacclimatizing to the rain, and meeting new families to help.

Shari Corboy, MBA, BCBA

Joined Sum of Learning in 2016
Specialization: Early intervention, challenging behaviors, naturalistic teaching, discrete trial teaching, social skills, language and communication, augmentative and alternative communication
Shari first started working with children and young adults on the spectrum in Dallas, Texas during her Freshman year of college as a weekend house parent in a residential facility. Upon graduating from University of North Texas with a Bachelor’s in Psychology, she started a family and returned to UNT to pursue an MBA. She was a stay-at-home mom until she re-entered the work force as a substitute para-educator in 2006. It was there she was assigned as a one-on-one aide to a 7th grader on the autism spectrum, and rediscovered her love of working with learners on the spectrum. This in turn led to the discovery of the Autism Project set up at the time in the school district and to the Experimental Education Unit (EEU) in the Haring Center at the University of Washington, thus starting her on the road to becoming a Board Certified Behavior Analyst through the program at the UW. She did her practicum on-site in Project DATA, completed the program sequence, and received her BCBA certification in 2012 and has been in practice locally until joining Sum of Learning in the fall of 2016.

With over 10 years of experience working with people with autism, Shari’s diverse educational experience coupled with extensive life experience serves her clients and their community both educationally and professionally.

Anna Levin, M.Ed., BCBA

Joined Sum of Learning in 2016
Specialization: Early intervention, challenging behaviors, naturalistic teaching, discrete trial teaching
Anna’s interest in working with children with disabilities began in high school as a mentor for students at a summer art’s camp. After receiving her bachelor’s degree in Psychology at Western Washington University, she began work as a behavior therapist and was introduced to the world of ABA. During her time as a behavior therapist, Anna’s passion for the field and craving to learn grew. Anna continued her education by graduating from the University of Washington’s Special Education – Applied Behavior Analysis program in August, 2015 and subsequently earning her BCBA.

Anna is specifically interested in challenging behavior and implementing comprehensive, function-based behavior intervention plans, and she has a budding interest in bringing ABA into the community. In addition to working at Sum of Learning, Anna also works part-time in the Seattle Children’s Autism Centers’ Biobehavioral and Feeding programs. As a BCBA, Anna’s goal is to continue growing and learning in order to form collaborate teams that create individualized, evidence-based treatment.

Rose Hiu Yee Lai, M.Ed., BCBA

Joined Sum of Learning in 2015 (as TA), promoted to Program Supervisor in 2017 Specialization: Early intervention, school-aged children, language and communication, social skills, naturalistic teaching, discrete trial teaching
Rose developed her passion for working with children with Autism Spectrum Disorder in 2013, when she worked as an ABA therapist in Hong Kong. With her undergraduate background in translation, Rose is particularly interested in behavioral analytic techniques to support children with ASD with their language and communication skills. She has experiences providing one-on-one ABA therapy in home, clinic, school, and community settings, as well as leading social skills group. Her philosophy of teaching is to promote children’s success through partnership with the child, parents, and multidisciplinary team.

Growing up in Hong Long and having lived in Shanghai, London, Barcelona, Chicago, and Seattle, Rose is exposed to a diverse cultural experience. She enjoys meeting people and working with families from different cultures, and is fluent in English, Cantonese, and Mandarin. In her leisure time, Rose likes to travel, try out new restaurants, and watch musicals.

Rose earned her bachelor’s degree in Translation from the Hong Kong Baptist University, and later a Master of Education in Special Education - Applied Behavior Analysis from the University of Washington in 2016. Rose became a Board Certified Behavior Analyst beginning 2017, and she is looking forward to building a partnership with her clients and their families, under her new role as a BCBA.

Lead Therapy Assistants

In addition to working directly with the clients, our Lead Therapy Assistants provide support to other TAs and Program Supervisors by: developing therapy materials, assisting Program Supervisors in assessments, training and supporting clinic TAs, and managing clinic library of therapy materials.

Eriko Fujimura, MSW

Master in Social Work
Joined Sum of Learning in 2015
Eriko was born and raised in Tokyo, Japan and came to the U.S. after graduating from high school. She earned her Bachelor’s and Master’s degrees in Social Work from the University of Washington. Eriko enjoys working with children, and believes that every child is different and has his/her unique strengths. She is committed to making a positive change to children as well as their families. Seeing her clients work hard and show joy in their learning is what motivate Eriko to work everyday. Eriko has never thought she would get another master’s degree, but after working as an ABA therapy assistant, she is determined to go back to graduate school once again and become a BCBA. In Eriko’s leisure time, she enjoys cooking, drinking coffee, and exploring nice coffee shops and restaurants in Seattle.

Suzanne Jones

B.A. in Communication Sciences and Disorders
Joined Sum of Learning in 2015
Suzanne was born and raised in South Seattle. She received her Bachelor’s degree from Western Washington University in Communication Sciences and Disorders. While working toward her bachelor’s, she worked with adults with developmental disabilities but later found her passion lied in working with children. Upon returning to Seattle, she found her true passion through her work as an ABA therapy assistant at Sum of Learning. She enjoys witnessing the positive changes to each child she works with and the progress her clients make everyday. Suzanne’s next goal is to go back to school and become a BCBA, helping more families and children in needs through the application of Applied Behavior Analysis. In her free time, Suzanne loves to work out whether it be kickboxing or endurance training.

Carmen Arredondo, M.S.

Master in Psychology Counseling
Joined Sum of Learning in 2016
Carmen was born and raised in Billings, Montana, and moved out to the Seattle area in 1997, to pursue her undergraduate degree in American Ethnic Studies at the University of Washington. She later earned a Master’s Degree in Psychology Counseling at Northwest University. Carmen has always had a passion for working with young children from toddlers up to 5 years of age. She has worked as a preschool teacher, nanny, and para-educator for the preschool SNAPS program for Lake Washington school district working with children on the autism spectrum. In her leisure time, Carmen enjoys reading, gardening, knitting and crocheting, camping, hiking, going to the beach, and spending time with her 6 nieces and 2 nephews. Carmen is enjoying her work as a therapy assistant and is hoping to pursue the BCBA certification soon.

Contact Us

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    425.882.8868
  • address:
    2310 130th Ave. NE Building B Suite 100 Bellevue WA 98005
© Sum of Learning 2017