Serving Costa Mesa & Orange County families

Helping Families.
Building Possibilities.

Behavior Functions provides compassionate, evidence-based services that help individuals and families navigate developmental challenges and create meaningful progress.

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  • 15+
    Years Experience
  • Family Centered Care
  • Multiple Languages
A parent and child playing with colorful building blocks together
What We Do

Supporting Every Step Forward

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A child working with a supportive adult during an assessment activity

Assessment

Comprehensive evaluations to understand needs and create a clear path forward.

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An adult supporting a child during an individualized activity

Direct Intervention

Individualized, evidence-based support designed around each individual.

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A family meeting with a professional for parent consultation

Parent Consultation

Practical strategies and guidance to help families support growth at home and in the community.

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Professionals collaborating during a consultation

Professional Consultation

Collaboration and training for schools, agencies and professionals.

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An instructor leading a professional training session

Training & Education

Building knowledge, skills, and confidence for families and professionals.

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A globe representing multilingual support and diverse languages

Multilingual Support

Services available in multiple languages to better serve diverse families.

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Our Principles

Driven by Values.
Focused on People.

Our core values guide everything we do. We are committed to making a positive impact every day.

01

Compassion

We treat every individual and family with respect, kindness, and empathy.

02

Integrity

We do the right thing, always. Honesty and transparency matter.

03

Evidence-Based

We use proven practices and continual learning to drive meaningful results.

04

Family-Centered

Families are at the heart of our work. Together, we achieve more.

Our Team

Meet the People
Behind the Mission

Our team brings experience, dedication, and heart to every family we serve.

Meet Our Team
Drew Nguyen

Drew Nguyen

Founder / Executive Director

Jeremy Garcia

Jeremy Garcia, M.A., BCBA

Clinical Director

Ashley Johnson

Ashley Johnson, M.A., BCBA

Senior Behavior Analyst

Kim Tran

Kim Tran

Family Support Coordinator

How It Works

A Simple Path to Support

  1. 01

    Connect With Us

    Reach out and tell us about your needs.

  2. 02

    Assessment

    We'll assess and determine the right supports.

  3. 03

    Personalized Plan

    We create a plan tailored to the individual.

  4. 04

    Ongoing Support

    We work together toward meaningful progress.

A happy family of three smiling together outdoors

You Don't Have to Navigate It Alone.

We're here to listen, answer your questions, and help you find the right next step for your family.

Get Started Today