MAAS Methadone Supported Services – New Haven, operated by Chemical Abuse Services Agency Inc, provides drug and alcohol addiction therapy in New Haven, Connecticut. Chemical Abuse Services Agency Inc DBA MAAS is a drug, substance, and alcoholism treatment clinic in New Haven, Connecticut, that also focuses on mental health and wellness in addition to substance abuse, alcoholism, and drug addiction treatment. This addiction treatment center also offers programs tailored to the treatment of dual diagnoses (co-occurring disorders).