Who we are

We are happy to know you are happy

About our team

About Our Team 1

Lilyan Campbell


Clinical Director/CEO

Lilyan, the founder of ABA Works, is a licensed Marriage and Family Therapist, and a Board Certified Behavior Analyst. Lilyan has 20+ years of experience working with individuals, couples, and families in both Europe and the United States.  She is a committed mother of two beautiful sons. Her dedication and passion shine through as she motivates clients and her whole team to accomplish goals, to be determined, and to be committed to growth.

(888) 286-8715 ext 1


About Our Team 2

Tosha Hayes



Tosha received her Bachelor’s degree in Child and Adolescent Studies and Master’s degree in Marriage and Family Therapy from California State University Fullerton. In addition, she also completed ABA Graduate Coursework from the University of North Texas after being introduced to ABA and working as a behavior therapist during the course of her Master’s Program. She became a BCBA in 2007 and has had the pleasure of serving the special needs community for the past 17 years as a Behavior Therapist, Lead Therapist, Supervisor, Director, and recently added Mother of twins with special needs. She has had the opportunity to work in the home, schools, clinic, and most recently telehealth.


Annie Casao


Clinical Manager

Annie Casao received her Bachelors Degree in Psychology from California State University of Long Beach in 2007. She was introduced to the science of Applied Behavior Analysis in 2010 and began working as a Behavior Interventionist. In 2017, she completed her Masters Degree in Applied Behavior Analysis through National University and became a Board Certified Behavior Analyst (BCBA) in 2019. Annie’s innovative personality has contributed to implementing strategic plans to increase productivity and help clients achieve lasting behavior change. 

(888) 286-8715 ext 8


Jay Johnson

M.S. Applied Behavior Analysis

Program Supervisor

Jay Johnson has worked in the field of Applied Behavioral Analysis since 2015. He had been working with children with special needs for four years prior in the roles of special education teacher and instructional tutor, respectively. Fascinated by the rate of success he saw the science of ABA have on clients as young as two years old to as old as twenty-six in the realms of both behavior reduction and skills acquisition, he returned to school and completed a Master in ABA at National University. The degree helped him elevate from being a behavior technician to a program supervisor, a role that he works in now. When he’s not working, Jay enjoys anything related to music, fitness, writing, traveling, and of course, food. 

(888) 286-8715 ext 12


Brian Pena

M.S. Ed

Program Supervisor/Bilingual Communications Liasion

Brian Pena began working in the field of ABA as a behavior technician in 2015. Since then, he has accumulated experience while working with diverse minority populations and is passionate about helping clients and families develop ABA skills. Brian completed his Masters in Educational Technology degree at California State University, Fullerton, and is currently enrolled in ABA coursework at Brandman University. Brian is an aspiring BCBA and wants to develop his skills further to continue helping families and others interested in the field.

(888) 286-8715 ext 10


Jacqueline daut


Program Supervisor


(888) 286-8715 ext 11


Tiffany Taylor

Office Manager

Tiffany Taylor is the Office Manager at ABA Works. Tiffany has been a dedicated member of the ABA Works team since 2015. She comes from a healthcare background with certifications as both a CNA and Medical Assistant and 8+ years of clerical/administrative experience in both California and Nevada. 

(888) 286-8715 ext 3



Clinical Coordinator


(888) 286-8715 ext 6


Alyssa Assayag

Scheduling Coordinator


(888) 286-8715 ext 4