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Since founded by parents in 1961, Developmental Disabilities Institute (DDI) has remained devoted to a single mission: to help children and adults with autism and other developmental disabilities experience their maximum fulfillment. While government funding and tuition fluctuate and do not cover all costs required to sustain and enrich DDI programs, donor support enables DDI to provide the services that our children and adults need and deserve to thrive.  


MAKE A DONATION NOW                                                                                                                    Your gift may be a general donation to support DDI's greatest needs, made in memory or honor of a loved one, a DDI staff member who feels like family, or a special program. A card designed by DDI’s Main Street Masterpieces artists will be sent to acknowledge those you have honored with a tribute gift, informing them of your kindness. You may also designate your gift as monthly. All gifts are tax-deductible, and you will receive an acknowledgment letter for tax purposes.


Online: Scroll to the bottom of this page to make an online donation 

By Mail: Please make your check payable to DDI and mail to: DDI, 99 Hollywood Drive, Smithtown, NY 11787

By Phone: 631.366.5812


Check if your company will match your donation! Many companies match your contribution dollar for dollar, or even double or triple it.