Vista Center for Applied Behavior Analysis Staff

Vista Staff ranked as one of the TOP service providers by Frank D. Lanterman Regional Center
Frank D. Lanterman Regional Center (FDLRC) conducts an annual Quality Improvement & Assurance (QIA) evaluation of vendor agencies that provide ABA services to clients of the regional center. Vista is consistently among the top ranked FDLRC’s preferred providers. The evaluation involves Behavioral Observation and Interview Results, Staff Qualifications, Parent and Service Coordinator Satisfaction, and Report Writing.


H. Keith Massel, Ph.D., BCBA-D

The founder and director of Vista Psychological Center and Vista Center for Behavior Analysis, he received his Ph.D. in Clinical Psychology from Georgia State University in 1985. His specialty area was behavior analysis and therapy. He has been a Licensed Psychologist since 1989 and a Board Certified Behavior Analyst since 2003. Vista Center for Behavior Analysis has been providing in-home behavioral services to children with autism and other developmental disorders and their families in Los Angeles County since 2001, under the parent name of Vista Psychological Center. Dr. Massel and Vista are dedicated to providing opportunities through applied behavior analysis that will empower clients and their families to lead satisfying and productive lives. Dr. Massel has conducted applied clinical research on procedures such as discrete trials training and basic research with animals and humans. He has co-authored book chapters and articles that have been published in the Journal of Applied Behavior Analysis and Behavior Therapy, among other journals.

Maya Jimenez, Ph.D., BCBA-D

Dr. Jimenez is Vista’s Clinical Director and she works closely with Vista clients in the Eastern Los Angeles and San Gabriel/Pomona areas, working closely with clients, families, and staff to innovate, improve, and implement superior programming. She has been with Vista since September, 2004. Maya is passionate about serving individuals with autism and other developmental disabilities, and she has extensive experience working with children and young adults. She does not shy away from challenges with her clients, and eagerly tackles even the most difficult situations.