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┬ęBreakthrough Behavior


Chief Executive Officer


Maegen Pierce

With more than thirteen years experience in the applied behavior analysis field, Maegen founded Breakthrough Behavior with the mission to provide highly effective and accessible services to individuals with autism. As a board certified behavior analyst (BCBA), she has specialized in school, clinic and home therapy, providing a unique and personalized treatment plan for hundreds of clients throughout the United States. Maegen received her bachelor's degree in psychology with an emphasis in applied behavior analysis (ABA) from California State University, Fresno and master's degree in special education from California State University, Monterey Bay. She currently resides in Orlando, Florida, with her husband Ryan, daughters Saoirse and Ella and two dogs Sammi and Charlie.

Sarah Vega

Chief Operations Officer

Sarah Vega is a pediatric physical therapist by training who has grown into a pediatric therapy operator over her 18-year career as a healthcare professional.  She graduated from the University of Kentucky in 2001 with a Master of Science in Physical Therapy and a Bachelor of Health Sciences.  Sarah moved to Dallas, TX immediately after graduation to begin her career at Texas Scottish Rite Hospital for Children.  From there, she moved into pediatric home health therapy, and began her journey in pediatric therapy operations.  Sarah fell in love with operations at Sage Care Therapy Services where she supported PT, OT, and ST services.  She then had the opportunity to support ABA services for ChanceLight Behavioral Health Division and moved to Nashville, TN.  Sarah is passionate about increasing access to quality therapy services for children with disabilities.  She is married with two boys, ages 7 years and one year old. Sarah loves being a mother, traveling, and having fun with girlfriends.

Adrienne Johnston

Director of Human Resources

With more than 30 years of human resources experience, Adrienne has worked for a range of organizations across numerous industries such as aerospace, transportation, telecommunications and academia. Adrienne specializes in leveraging human capital management (HCM) systems to improve policies, procedures and processes. She is proud to continually advocate for what is right and prioritizes the safety and security of employees. Adrienne is a native of northern California and earned a bachelor’s degree in business administration from San Jose State University. She began her career with The Boeing Company in Los Angeles and also completed her master’s degree in psychology and education at Pepperdine University.

David Yoffee


With more than 20 years of accounting and finance experience, David leads all aspects of financial management for Breakthrough Behavior, including regulatory and financial reporting, budget and forecast preparation, and corporate accounting. He is a certified public accountant (CPA) and most recently worked for a multi-site medical practice. David also has previous experience with starting and growing his own multimillion dollar organization.