How will I find rehab centers with dual diagnosis programs in Union, New Jersey?

My brother is suffering from drug addiction and other health problems, which until now I couldn't understand completely. I know someone who had the same problem and was treated using dual-diagnosis program. It effectively worked for him. But the center where he was cured is far from us. I need to find one nearer our place so that I and my other relatives can visit him more often.

: http://alcoholdrugstreatment.info/how-will-i-find-rehab-centers-with-dual-diagnosis-programs-in-union-new-jersey