The first residential drug treatment program in the Eastern United States was founded in New York in 1963.

Since then Daytop has treated more than 53,000 substance abusers. The program places the individual in a tightly controlled environment with a non-institutional setting under the supervision of former drug abusers and professional specialists.Nearly 1,800 people are in treatment on a daily basis and some stay as long as 18 months. A five-year follow-up study claims that 92 percent of Daytop's graduates have remained drug free, crime free and are employed or in school.