Team page

Our Team

Melissa Sweitzer, Ph.D., BCBA-D

Executive Director Licensed Psychologist

Dr. Sweitzer is a licensed psychologist and Board Certified Behavior Analyst, specializing in Applied Behavioral Analysis and developmental disabilities. Dr. Sweitzer received her Doctorate degree in Educational Psychology from the University of Southern California and has over 30 years of experience working with individuals with challenging behaviors in a wide range of settings including home, school, residential settings and vocational day programs. She has conducted numerous workshops and presentations on Applied Behavior Analysis nationwide.

Dr. Sweitzer began her long career in Florida as a Behavior Specialist providing ABA and parent training services to families. The joy and excitement of seeing success as a child learns to speak are the moments that have inspired Dr. Sweitzer.  She founded Behavioral Support Partnership (BSP) in 2005 to provide ABA services in family homes, the BSP Kids Clinic and in the community.   She currently serves as President and Executive Director.

During her extensive career, Dr. Sweitzer has held clinical and management positions at the Florida Mental Health Institute’s Parent and Child Training project, the Regional Center of Orange County, and private treatment agencies. In 1990, Dr. Sweitzer started a behavior consulting practice in Southern California that continues to support adults with developmental disabilities in residential and vocational settings. 

Senior Management:

Marina Garcia, M.A., BCBA

Clinical Director

Marina is a Board Certified Behavior Analyst with over a decade of experience working with children diagnosed with Autism and other developmental disabilities. She has extensive experience working in the home, community and school settings. Marina enjoys working with the early intervention population and is especially passionate about educating and empowering our Spanish speaking families.

Marina has a Master’s degree in Teaching with an emphasis in Applied Behavior Analysis from National University and a Bachelor’s Degree in Psychology from UCLA. Marina has extensive training in Applied Behavior Analysis, including Pivotal Response Treatment and Positive Behavior Support strategies. She is certified in PECS and has attained Level III Certification in PRT. Marina has taught coursework on Autism at Cal State Los Angeles and behavior management classes at Harbor Regional Center and Regional Center of Orange County. She has also volunteered her time to speak at various Spanish speaking support groups throughout Orange County.

Velika Lee, M.S., BCBA

Manager of Early Start Services

Velika started working with children and families while she was living in Bulgaria in the field of Social Work and specialized in connecting families from ethnic minority backgrounds to social services. Velika worked as a 1:1 Behavior Therapist with BSP from 2014-2015 before moving to Singapore. During her time abroad, Velika continued her work in ABA providing services to clients from across the world. Upon returning to the United States in 2017 and obtaining her BCaBA, Velika started back as a Sr. Parent Training Consultant with BSP.  Velika would like the focus of her career to be within the area of Early Intervention. In her free time, Velika enjoys spending time with her family, reading, traveling and practicing yoga.

BCBA Clinical Supervisors

Samantha Mc Donald , M.S., BCBA

Samantha is a Board Certified Behavior Analyst with five years of experience serving children and their families. She haMaster’s Degree in Applied Behavior Analysis from National University and a double major in Sociology and Psychology from California State University, Long Beach. During her time in undergraduate school, she worked as a Social Psychology and Child Psychology Research Assistant. It was at this time that she began working with children with Autism Spectrum Disorder and other developmental disabilities and fell in love with the field of applied behavior analysis. Samantha’s interests include reading, cinema, watercolor painting, and cooking.

Katherine Nichols, M.S., BCBA

Katherine earned her Masters of Science degree in Applied Behavior Analysis from the California State University, Northridge and obtained her Board-certification as a Behavior Analyst in 2016.  She has been working in the field of Applied Behavior Analysis (ABA) for more than a decade, moving from Direct Interventionist to Program Coordinator to Clinical Supervisor.  She has worked in both in-home and school settings, with a wide range of ages (3 year-adult) and varying diagnoses. Katherine has specialized experience working with individuals with high-intensity challenging behaviors such as aggression and Self-Injurious Behaviors (SIB).  Katherine is a self-described “ABA nerd” who truly enjoys the science of behavior and what we have learned from it! When she is not playing with a client, Katherine spends her free time camping, making art and playing her own daughter.

Janis Niemann, M.S., BCBA

Janis Niemann is a Board Certified Behavior Analyst who holds a Master’s of Science in Counseling with a concentration in Advanced Behavior Analysis from Nova Southeastern University. Janis is originally from Buffalo, NY where she obtained her Bachelor’s Degree in History Education. Janis has over 9 years of experience working with children who have special needs and their families. Her interests include early intervention, social skills facilitation, and working with individuals with challenging behaviors.