Associate Clinical Director

David is a Board Certified Behavior Analyst (BCBA) that has been serving clients with autism and developmental disabilities since 2011. He received his B.A. with a double major in Psychology and Social Behavior/Criminology, Law, and Society from UC Irvine, and his M.S. in Applied Behavior Analysis at Cal State University, Northridge. He’s been with Atlas since August 2019, currently working as a BCBA. In his free time, David enjoys playing a variety of sports, including soccer, basketball, baseball, and tennis, and has even completed a few marathons. Before starting his graduate studies, he taught English in Thailand for two years and volunteered for an ABA agency there. He can speak Thai conversationally and continues to do so at Thai restaurants here in the States. 

Behavior Analyst

As a Behavior Analyst, I find immense satisfaction in the daily opportunity to make a positive impact on the lives of individuals and their families. What I enjoy most about my job is the chance to use evidence-based strategies to assess and understand behavior, ultimately helping individuals achieve their goals and improve their quality of life. It’s incredibly fulfilling to witness the progress and growth of the clients I work with, and I appreciate the collaborative nature of ABA, where I get to work closely with families and interdisciplinary teams to tailor interventions that are both effective and compassionate. The constant learning and adaptability required in this field keep me engaged and motivated, ensuring that each day brings new challenges and opportunities for growth.

I have a passion for photography, revel in the beauty of hiking through nature, and thrive on exploring new destinations through travel.

Behavior Analyst 

I am a Behavior Analyst at Atlas and been in the field of ABA since 2016. I began as a behavior technician for a clinic in Dallas, TX, moved to California to pursue an education in Applied Behavior Analysis at California State University at Northridge, and joined Atlas in 2020. A fun fact: I was born in Asuncion, Paraguay and moved to America when I was 6. I hope to visit and see how much things have changed!

Program Supervisor 

I currently serve as a Program Supervisor at Atlas Behavior Services. I earned my BA in Psychology and MS in Applied Behavior Analysis from California State University, Northridge (CSUN). During my academic journey, I gained valuable practicum experience as a student at CSUN and contribute as a research assistant at KLab Behavior Science & Technology Lab. My career in this field began as a behavior technician and intern at Atlas Behavior Services where I provided one-on-one services to our clients. Outside of work l find joy in immersing myself in nature, photography, creating new experiences, and despite my admitted lack of culinary experience, I excel as a wonderful sous chef.

One of the most rewarding aspects of my role is witnessing our clients’ progress and hearing parents’ excitement about how their child applies what they’ve learned in their daily lives. I also enjoy working with parents and providing them with support and guidance.

Behavior Analyst

I am a Behavior Analyst with Atlas. I have been working in the field for 5 years now. I received my B.S. in Psychology with an emphasis in Behavior Analysis from the University of Florida and my M.S. in Applied Behavior Analysis from California State University – Northridge. I love working with each of my clients and seeing their growth, especially watching their language develop. Outside of work, I enjoy reading, hiking, and spending time with my family, friends, and cat.

Program Supervisor 

Behavior Analyst 

Program Supervisor

Behavior Analyst

I studied at the University of California, Irvine where I earned my bachelor’s in psychology and social behavior in 2016. After working as a behavior technician for 6 years, I furthered my education at California State University of Northridge to attain a Master of Science in Applied Behavior Analysis in 2021. After graduating, I received my BCBA certification and have been practicing as a program supervisor at Atlas Behavior Services for the past 2 years. Seeing my clients make their little and big successes from session to session is a rewarding experience and allows me to go home with something to look forward to every day. In addition, seeing parents and other family members gain confidence in participating and implementing treatment plans that help their child and family dynamic adds to the fulfillment I feel walking into and out of sessions. Lastly, a big part of my job that I truly enjoy is getting to mentor and train my behavior technicians because without them, improvement of my clients would not be possible. Fun fact, I paint canvases of all sizes at home and work part time at an art studio making sculptures. 

Behavior Analyst

Behavior Analyst

Allen Feil is a highly experienced and compassionate professional in the field of Applied Behavior Analysis (ABA), boasting over 8 years of dedicated service. Holding a Bachelor’s degree from the University of California San Diego and a Master of Science from California State University Northridge, Allen is a Board-Certified Behavior Analyst (BCBA) renowned for his expertise in working with children, adolescents, and adults in various settings. Beyond his academic achievements, Allen’s commitment to the field is underscored by over 15 years of hands-on experience in providing invaluable support to young individuals.

As both a dedicated professional and a proud father to a beautiful baby girl, Allen brings a personal dimension to his work, emphasizing empathy and understanding in his approach. His impact extends beyond individual interactions, as he has played a pivotal role in enhancing the educational landscape. Allen has shared his wealth of knowledge by providing training and support to various child care providers and educators in both public and private school settings. With a holistic perspective on Behavior Analysis and a passion for making a positive difference in the lives of others, Allen Feil continues to be a dedicated advocate for the application of ABA principles in diverse educational environments.

Behavior Analyst

Andrea Velasco is a program supervisor and joined the Atlas team in September of 2020. She has been in the field of behavior analysis for four years and received her Master of Science in ABA from Cal State University, Northridge. 

Andrea lives in the San Fernando Valley with her three cats (Lilos, Minina, and Chicken). Her favorite show is Adventure Time. She is obsessed with açaí and matcha lattes. One fun fact about her is that she has music-to-color synesthesia, which is found in about 3% of all people. 

I’m a program supervisor and joined the Atlas team in September 2020. I’ve been in the field of behavior analysis for four years and received my Master of Science in ABA from Cal State University, Northridge. 

I live in the San Fernando Valley with three cats (Lilos, Minina, and Chicken). My favorite show is Adventure Time. I’m obsessed with açaí and matcha lattes. One fun fact about me is that I have music-to-color synesthesia, which is found in about 3% of all people.

Behavior Analyst

I am a Behavior Analyst at Atlas Behavior Services. My educational background includes a Bachelor of Arts in Communication Disorders and Sciences with a minor in special education from the University of Oregon. I furthered my expertise by completing a Master of Science in Applied Behavior Analysis at California State University – Northridge. I am deeply passionate about supporting families and clients through my work and find great fulfillment in this aspect of my career. Outside of my professional endeavors, I prioritize spending quality time with family and friends.

Office Manager

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