DDI’s Early Childhood Learning Centers in Huntington, Medford and Ronkonkoma offer a variety of preschool classes. We achieve a remarkable 88% placement rate of students into their home school district by Kindergarten. 


Our staff receives extensive training in the areas of Child Development, Health and Safety, Applied Behavior Analysis, Professionalism and Dignity and Respect of children and their families.


DDI’s Early Childhood Services prepare children for a successful kindergarten experience by providing superior educational services and therapies for those children who show a developmental delay in cognition, social language or emotional development.  We utilize Activity Based Intervention, discrete trial instruction and incidental teaching in a variety of classroom settings.  


DDI’s Early Childhood Learning Centers collaborate with Head Start and local school districts for the provision of Universal Prekindergarten programs.


All staff members complete DDI’s standardized training in the principles of ABA and receive ongoing supervision and training to ensure teaching strategies and behavioral support plans are implemented effectively.


Preschool classes provide a stimulating, educational atmosphere where three to five year old children develop friendships and skills in preparation for kindergarten.


We offer:


  • Full-Day specialized programs for children with Autism Spectrum Disorder
  • Half day and full day integrated classes
  • Full day self-contained classes
  • Headstart and UPK classes
  •  Physical Therapy, Occupational Therapy, Speech Therapy, Parent Training, Counseling, and Psychological Services provided in the family home, preschool, or at the center.
  •  Culturally and linguistically diverse classes.


For more information please contact




Head StartAnalla  Jamarra

Head Start is a federally funded comprehensive early childhood educational program serving income eligible families.

For eligibility criteria at our Huntington campus click on the following link

Huntington Head Start

For eligibility criteria at our Ronkomkoma campus click on the following link

Ronkonkoma Head Start



Making silly puttyUniversal Prekindergarten

Universal Pre-K students must be four-years of age on or before December 1st or otherwise eligible to attend kindergarten the following school year.  You must reside in either the Huntington or Connetquot School Districts.

For Huntington residents please contact Huntington School District 

For Ronkonkoma residents please contact Connetquot School District

Preschool Special Education


Early Intervention is a statewide program that provides a variety of services to infants and toddlers with disabilities and their families. In New York State, the Department of Health is the lead state agency responsible for the Early Intervention Program. To be eligible for services, children must be under 3 years of age and have a confirmed disability or an established developmental delay, as defined by the State, in one or more of the following areas of development: physical, cognitive, communication, social-emotional, and/or adaptive.


Developmental Disabilities Institute is approved by the New York State Department of Health and is under contract with Nassau & Suffolk counties to complete evaluations and provide services.


DDI’s Early Childhood Learning Centers offer a full complement of services at home, in the community, and/or at our center. We offer a nurturing environment, utilizing the principles of Applied Behavior Analysis, to foster growth and development in young learners. Services include: special instruction, speech therapy, occupational therapy, physical therapy and family education and support.


Your first step into the Early Intervention Program begins with a referral to your County's Early Intervention Official (EIO). A referral can be made by the child's parents or pediatrician.


  • Nassau County Department of Health - (516) 227-8661
  • Suffolk County Department of Health - (631) 853-3100 

If you require further information and assistance in making a referral, DDI can guide you through the referral process.

  • Huntington, New York Evaluation Coordinator: (631) 266-4413
  • Ronkonkoma and Medford, New York Evaluation Coordinator: (631) 580-4024

Services for all eligible children are provided at no cost to families. Funding for the Early Intervention program is through New York State Department of Health and Nassau and Suffolk Department of Health.  




The Center for Autism supports all children with ASD across all Early Childhood Learning Centers and is committed to providing state-of-the-art, empirically based teaching methodologies to help children gain the skills necessary to be successful in their home, community, and school settings. 


Our intensive ABA classes are offered across all Early Childhood Learning Centers with services available 12 months per year. The shared goal is to prepare our students for kindergarten by providing a high-quality, intensive learning experience. Team members provide a transdisciplinary approach to learning where the principles of Applied Behavior Analysis are incorporated into the child’s day.  The child’s individual needs are met through providing ongoing formal and informal assessments, consistent implementation of methodologies in all skill areas, positive behavior supports and differentiated instruction.  


Students meeting prerequisite social, academic, behavioral and language skills are integrated into less restrictive onsite settings.  This experience provides our students with an opportunity to generalize skills and begin to develop the ability to learn from their typically developing peers in a more natural educational setting. 


Our students’ parents receive hands-on parent training where they learn to teach their child so that they may be able to continue their child’s education at home and generalize and reinforce skills learned at school.  The program also provides family trainings that teach the principles of Applied Behavior Analysis in order to give families a better theoretical understanding of how their child learns. 


For more information please contact


What is the School Age Program?School Age

The School Age Education Program, called Children’s Day Program, serves students age 5 to 21 who have an identified developmental delay or disability.  The school-age program serves students with a diagnosis of autism, intellectual disabilities, or multiple disabilities.  We serve students with no regard to race, color, religion, sexual orientation, gender, national origin or sponsor.  We welcome diversity.


What services are available through Children's Day Program?

In two school campuses, all class groupings of 6 students are taught by one teacher and three teaching Assistants.   There is one class of 12 students with one teacher and 4 Teaching Assistants.  Related services ( Speech, Occupational Therapy, Physical Therapy, Prevocational/Transition services, Psychological Services) are pushed in to the students’ environment so everyone working with the student can generalize the target skills in the context of functional activities. 

Programmatic services include a curriculum coordinator, Adapted Physical Education, Art, Music and Technology services and community outings. 

Clinical supports include Behavior Support Workers, Behavior Specialists, Clinical Coordinators, PhD Psychologists.  Our program is overseen by Board Certified Behavior Analysts. 


How do I refer my child to the Childrens Day Program? 

Students attend the Children’s Day Program (CDP) at the approval of the students’ home School Districts. 

Referral packets are sent to the CDP by school districts after there has been a CSE meeting during which a decision to explore DDI as a possible educational placement has been made.  When we receive an appropriate referral, the student and family are invited to come in for a screening by a Transdisciplinary Screening Team.  Screenings and admissions to the program are carried out throughout the year.  DDI teachers, therapists and behavior specialists work with the CSE and parent to develop or modify appropriate IEP goals for students once they enter program.  A CSE meeting will be scheduled within 4-6 weeks after admission in order to discuss goals with the CSE.  No student shall be required to obtain a prescription for a drug or other substance as a condition of attending our school. 


If you require further information and assistance in making a referral, DDI can guide you through the referral process.


Huntington: Candace Hamilton - (ages 5-21) 631 266-4420

Smithtown: Kiera Essling - (ages 14-21) 631 366-2989