Meet Our Clinical Leadership Team

Timothy Yeager is the Chief Clinical Officer at Centria Healthcare, where he leads with purpose—building systems that empower teams and elevate care in Applied Behavior Analysis (ABA) therapy. A Board Certified Behavior Analyst with over 14 years of experience across healthcare, education, and social services, he focuses on clinical quality, outcomes, and values-based service. He oversees the full client-staff experience—from intake to discharge—driving standards, professional development, and data-informed decision-making.

A first-generation college graduate from California’s Central Valley, Timothy has eventually earned multiple graduate degrees from Columbia University. His leadership is rooted in listening, serving, and building systems where both clients and clinicians can thrive.

Hillary Laney has dedicated over fifteen years to the field of behavior analysis, specializing in severe interfering behavior, technology development, and leadership. She is passionate about fostering community and relationship-driven approaches in client care and in how she supports employees and leaders. Hillary has successfully integrated the assent-driven ABA therapy model, Foundations of Care, into Centria’s services.  She is committed to ensuring dignified, client-centered care and has effectively leveraged technology to achieve organizational and clinical goals. Hillary believes that leadership abounds when leaders prioritize caring personally, challenging directly, and effectively collaborating.

Kajza Coats, M.S., BCBA, is the Senior Vice President of Clinical Services, overseeing clinical operations across five western states. With nearly two decades in applied behavior analysis, she is passionate about building sustainable career pathways, mentoring future leaders, and shaping cultures that drive clinical excellence and team connection. Kajza presents nationally on leadership, change management, and the intersection of humanity and practice. Her work is rooted in a deep commitment to developing well-rounded, supported clinicians who grow technicians, honor assent, and partner meaningfully with clients and families—meeting them where they are to support individualized, values-driven goals.

Dr. Emily Callahan has been the Vice President of Clinical Quality at Centria Autism since August 2021. In this role, she is involved in numerous aspects of service delivery including the development of an industry leading clinically informed intake process, providing oversight for Centria’s diagnostic services, and setting standards related to ABA assessments. She holds a Ph.D. in clinical psychology from SUNY Binghamton and is a Board Certified Behavior Analyst (BCBA-D).

Prior to Centria, Emily was the inaugural Executive Director of CASP and held leadership positions at the Virginia Institute of Autism and SUNY Binghamton. A published researcher and presenter in ABA and autism, she is actively involved in professional organizations. Residing in Charlottesville, VA with her family, she enjoys outdoor activities and passionately supports the UNC Tar Heels.

Dr. Kerri Milyko serves as the Vice President of Clinical Development at Centria Autism, where she leads a team focused on building systems for Centria’s extensive field team. This includes an internal practicum program to develop high-quality, compassionate clinicians working in the field of autism, clinical data analysts to quantify and disseminate Centria’s clinical outcomes, performance thinking coaches who create performance monitoring systems and new lines of revenue, and system creation and materials for behavior-analytic instructional design. Prior to this position, Dr. Kerri joined CentralReach as the Director of Curriculum Programming in October 2019. In this role, she and her team created a fully-digital, integrated, evidenced-based curriculum to service the needs of autistic learners and those with IDD, CR Elements. Before this, she served as Director of Development and Outreach of Agile Learning Solutions (Precision Teaching Learning Center) and the Director of Research and Development of The Learning Consultants, where she is currently an active board member.

Tim Fuller’s passion for the science of behavior analysis has been shaped by decades of experience in the ABA field. With expertise in complex human behavior, training, mentorship, and research, Dr. Fuller has been fortunate to contribute to the advancement of evidence 7 values-based practices that drive meaningful organizational outcomes. His leadership in clinical innovation, coupled with a commitment to mentoring professionals, ensures the highest standard of care. As a dedicated advocate for how ABA can contribute to the needs of individuals, families, and their community, Dr. Fuller continues to shape the future of ABA through values-based and research-driven solutions that enhance lives and the professionals who serve them.

Edward Sanabria is an experienced behavior analyst dedicated to advancing clinical excellence and in Applied Behavior Analysis (ABA).  As Director of Functional Assessment and Treatment Implementation at Centria, he leads pyramidal model training initiatives for over 75 Directors and 350 clinicians across 13 states, focusing on the components of our Foundations of Care framework: the design and implementation of Foundational Plans, Practical Functional Assessment and Skill-Based Treatment. 

His research and collaborations focus on scaling compassionate, assent-based interventions, reflective practice and humility as well as interdisciplinary collaboration.  With a PhD in ABA from The Chicago School,  Edward is committed to developing thoughtful leaders and disseminating effective clinical practices that are impactful for our clients.