“My mission is to meet every child where they are, using empathy, creativity, and connection to help them feel seen, supported, and empowered to succeed.”

Highlighted Services: Executive Functioning Coaching, Multidisciplinary Evaluations, Social-Emotional Learning Sessions

Brielle Mussomeli, M.Sc. is a School Psychologist at San Diego Kids First. She brings heartfelt dedication to helping children grow academically, emotionally, and socially. She earned her Master of Science in School Psychology from National University and holds a Bachelor’s Degree in Psychology from San Diego State University. With a strong foundation in both education and hands-on experience, Brielle is known for her empathetic, creative, and child-centered approach.

Before pursuing graduate studies, Brielle worked as a teacher’s assistant at Silver Gate Elementary, supporting students in one-on-one and small group settings. She worked closely with students with learning disabilities, which sparked her passion for School Psychology and her desire to advocate for children’s diverse needs. She went on to complete her School Psychology internship with Poway Unified School District, where she worked with both elementary and middle school students. During this time, she conducted comprehensive psychoeducational assessments for students with Specific Learning Disabilities, ADHD, Anxiety, Autism Spectrum Disorders, Behavioral Challenges, and those with other mental health or neurodevelopmental conditions.Brielle’s prior experience also includes working in a school counseling setting utilizing trauma-informed and solution-focused modalities, and collaborating with families and school teams to support the development of IEPs and 504 Plans.

At San Diego Kids First, Brielle provides individual skill-building sessions with children and teens focused on tailored social, emotional, and behavioral goals. She provides parent coaching and support, and collaborates with the school team at the family’s request. She also conducts multidisciplinary evaluations in conjunction with the clinical team at San Diego Kids First . She is committed to building trusting relationships and creating safe, supportive environments where students feel heard and valued, and can thrive socially, emotionally, and academically.

Brielle also brings a vibrant creative background to her work. A lifelong performer, she spent nearly a decade as a vocalist and live entertainer at LEGOLAND California. Her background in music and the performing arts helps her connect with youth through play, creativity, and emotional expression. Whether using music-based strategies or simply infusing joy into her sessions, Brielle blends her clinical training with her natural ability to engage and inspire young people. In her free time, she enjoys spending time with her family, yoga, hiking, singing, and cheering on the San Diego Padres as a member of the Pad Squad.