Choose a way to contact us!


  • Come in for an initial consultation 

  • Insurance specialist request authorization

  • Parents and child come in for an assessment 

  • Set up a welcome packet meeting 

  • Set up a parent training with your child’s future BCBA

  • Start receiving early intervention  


At ABS our goal is to make this as easy as we can for the family waiting for services. ABS specialist will be in contact with you during the whole process! 

Autism and Behavioral Spectrum programs:

  • In-clinic therapy

  • In-home therapy

  • A combination of in-clinic and in-home therapy


Our methods for early autism intervention programs include:

  • Applied Behavior Analysis (ABA) Principles

  • Verbal Behavior

  • (DTT) Discrete Trial Training 

  • (NET) Natural Environment Training

  • Incidental Teaching

  • Positive Behavior Support

  • Fluency Building

  • Picture Exchange Communication System (PECS)

  • Ongoing Program Evaluation

ABS is a non-restraint facility

Autism spectrum disorder (ASD) is a developmental disorder that affects communication and behavior. At Autism and Behavioral Spectrum our diagnostic team will work together to help navigate any suspicious behaviors or concerns you may have.   

Children with autism often start to exhibit the most-obvious signs between two to three years old. Certain developmental delays that are associated with autism can be addressed even earlier. If you suspect your child is showing signs please click below to take the FREE Online Autism Screening Questionnaire

Autism and Behavioral Spectrum focuses on communication and collaboration. Each child has a team of highly trained professionals working on their developmental needs. 


ABA has been endorsed as an effective treatment for Autism by the CDC and US surgeon general. 


The Reggio Emilia Philosophy

  • Child-led

  •  Encourages curiosity and imagination

  •  Children learn from their surroundings

  • Environment as the third teacher

  • Respect, Responsibility, and Community

  • Expression through 100 languages 

ReggioABA is a trademarked collaborative approach to better meet the individual needs of every child within an early

intervention setting.


AB Spectrum General Contact Information

Phone: (314) 339-7732

Email: info@abspectrum.org

Fax: (636) 244-4914



14733 Clayton Rd Chesterfield, MO​ 63011

Direct Line: (636) 284-9487

Email: chesterfield@abspectrum.org

St. Charles

1030 Wolfrum Rd, St Charles, MO 63304

Direct Line: (636) 445-4659

Email: stcharles@abspectrum.org

Administration Hours: 7:00am-4:00pm