Agencies listed below are providers of mental health services that receive funding from the Nassau County Department of Mental Health, Chemical Dependencies and Developmental Disabilities Services. For a complete list of mental health providers in Nassau County please go to the Directory of Mental Health Services for Children and Adults.

Abilities, Inc.
Angelo J. Melillo Center for Mental Health  
Catholic Charities Diocese of Rockville Centre
Central Nassau Guidance and Counseling Services, Inc.
Family Residences & Essential Enterprises
Family and Children’s Association
Federation Employment and Guidance Service
Hispanic Counseling Center
Long Beach Medical Center – Behavioral Health
Long Island Advocacy Center
Long Island Counseling Center
LIFT Long Island Families Together
Mental Health Association of Nassau County
Mercy Medical Center – Behavioral Health
MTI Residential Services, Inc
Nassau/Suffolk Law Services

Nassau University Medical Center
National Alliance on Mental Illness
NAMI Long Island Regional Council
NAMI North Shore
NAMI Queens / Nassau
NAMI Southwest Nassau NY
North Shore – Long Island Jewish Health System – Mental Health Information
North Shore – Long Island Jewish Health System – Member Hospitals
North Shore Child & Family Guidance Center  
Peninsula Counseling Center
Roosevelt Counseling and Resource Center  
South Nassau Communities Hospital – Behavioral Health
South Shore Association for Independent Living
South Shore Child Guidance Center
The Rehabilitation Institute