To ensure that drug and alcohol treatment is available to those with co-occurring psychological issues, Partial Hospitalization drug rehabilitation centers in Mahwah, NJ. can supply rehab in particular hospital and mental health clinic settings for individuals who will need treatment. Partial Hospitalization the name for this sort of drug rehabilitation facility, because the treatment client will undergo drug and alcohol treatment in the day and will then go home in the evening up to seven days per week. This is why these drug treatment facilities are also called Day Treatment. Partial Hospitalization drug and alcohol rehab programs deal with drug and alcohol addiction problems and psychological issues at the same time so that treatment staff can ensure that the treatment client won't fall back into drug use once drug treatment is complete.