BIA's mission is to significantly improve the lives of children diagnosed with Autism by providing innovative and individualized treatment.  

BIA is a recognized leader within the community for intervention and support of young children and adolescents diagnosed with Autism Spectrum Disorders (ASD).

About BIA

BIA provides applied behavioral analysis (ABA) services to children and adolescents ages 18 months to 18 years of age.  Services are offered via a hybrid program, combining clinic based, in home and community settings.  Additionally, BIA offers social skills groups and an integrated preschool.



The incidence of Autism is purported to be 1 in 10,000. There is one ABA provider in the San Francisco Bay Area.


Hilary Baldi, BIA Founder, takes a course at UCLA from Dr. Ivar Lovaas who pioneered using an intensive ABA approach with young children diagnosed with Autism.


Dr. Ivar Lovaas publishes a study citing the effectiveness of intensive early intervention utilizing an ABA approach. 47% of children in the study are able to be mainstreamed in general education.


Ms. Baldi moves to the SF Bay Area and begins working with children diagnosed with ASD.


Deanne Detmers, BIA Founder, completes her MA in Special Education and is working as a research assistant with Dr. Bryna Siegel at the UCSF PDD Clinic. Ms. Detmers begins training under Ms. Baldi implementing ABA programs.


Most families are paying privately out of pocket for services.


Behavioral Intervention Association (BIA) is founded as a 501 (c)(3) California Non-Profit. Richard & Ida Demirjian commit $60K to provide seed money for BIA.


BIA expands services to Sacramento, California and Monique Bekeschus begins her training with BIA.


BIA begins providing services in the United Kingdom and Ireland becoming the first ABA provider in both of these countries.


BIA’s DVD, Embracing Play, receives a review in the Journal of Autism and Developmental Disorders.


BIA creates ‘The Clubhouse’ afterschool social skills group.


BIA opens a campus in Fresno, California, which includes an integrated preschool through a generous grant from First 5 California. Ms. Bekeschus becomes the Clinical Director of the Fresno services.


BIA produces its 2nd video, Passport To Friendship.


BIA Village Preschool is accredited by the National Association for the Education of Young Children (NAYEC).


BIA begins serving children in the Salinas/Monterey areas and opens a Monterey office.


BIA celebrates its 25th Anniversary providing services to families affected by Autism.



BIA continues to provide services in the San Francisco Bay Area, Fresno and the greater Central Valley, Salinas and Monterey areas. The incidence of Autism is now 1 in 59. BIA remains steadfastly committed to providing high quality ABA intervention programs to individuals diagnosed with Autism Spectrum Disorder (ASD).