All agencies below are certified by the NYS Office for People With Developmental Disabilities (OPWDD) and provide services for individuals with intellectual and developmental disabilities (IDD). Listings include day programs, residential services, care coordination, respite, and employment supports.

Suffolk County
The Center for Discovery
Suffolk
Large multi-site provider offering day programs, residential, vocational, and clinical services across Suffolk County. Known for innovative IDD care models and family support programs.
Mount Sinai, NY
Day Program Residential Vocational Family Support
AHRC Suffolk
Suffolk
One of Suffolk's largest IDD providers, offering respite, day hab, residential, family education, and advocacy services. Strong community presence and extensive family support infrastructure.
Hauppauge, NY
Day Habilitation Respite Residential Advocacy
Family Residences & Essential Enterprises (F.R.E.E.)
Suffolk
Serves individuals with IDD, traumatic brain injury, and behavioral health needs. Provides residential, day program, employment, and care coordination services throughout Suffolk County.
Bohemia, NY
Day Program Employment TBI Services Care Coordination
Alternatives Community Programs
Suffolk
Family-founded Suffolk provider offering person-centered day programs, residential alternatives, and community integration. Known for small program sizes and individualized approaches.
Bay Shore, NY
Day Program Community Integration Person-Centered
Federation of Organizations
Suffolk
Provides comprehensive IDD services including day hab, prevocational, respite, and family support. Active in Suffolk County with a focus on community inclusion and advocacy for individuals and families.
West Babylon, NY
Day Habilitation Prevocational Respite Family Support
Variety House
Suffolk
Suffolk-based nonprofit providing residential and day program services for adults with developmental disabilities. Known for a strong community presence and family-centered culture.
Nesconset, NY
Residential Day Program Community
LIFSHARE
Suffolk
Person-centered day program and community habilitation provider serving Suffolk County. Focuses on individualized supports, community participation, and skill-building for maximum independence.
Medford, NY
Day Habilitation Community Habilitation Person-Centered
Community Mainstreaming Associates
Suffolk
Suffolk-based IDD provider offering day habilitation, community integration, and family support services. Known for a collaborative approach with families and local school districts.
Huntington, NY
Day Habilitation Community Integration School Collaboration
People Inc.
Suffolk
Western New York origins, now serving Suffolk through residential, community, and day services. A comprehensive IDD provider with decades of experience and a strong quality-improvement record.
Erie County / Long Island
Residential Day Services Community Supports
Long Island Advocacy Center (LIAC)
Suffolk
Not a direct service provider — LIAC provides advocacy, legal representation, and systems-change work on behalf of individuals with IDD and their families across Long Island.
Huntington, NY
Advocacy Legal Support Systems Change
Suffolk Independent Practice Association (SIPA)
Suffolk
A provider network coordinating IDD services across Suffolk County. Connects families with member agencies and supports coordinated care delivery for individuals with complex needs.
Ronkonkoma, NY
Care Coordination Network Multi-Agency
Nassau County
Cerebral Palsy Association of Nassau County
Nassau
Long-standing Nassau provider specializing in services for individuals with cerebral palsy and related disabilities. Offers day programs, residential, and family support services in the Nassau area.
East Meadow, NY
Cerebral Palsy Day Program Residential
AHRC Nassau
Nassau
Nassau chapter of the AHRC family — one of the largest IDD provider networks in the state. Offers day habilitation, employment, respite, and self-direction support services across Nassau County.
Carle Place, NY
Day Habilitation Employment Self-Direction Respite
Nassau County NYSARC Chapter
Nassau
Part of the statewide ARC network, providing day programs, residential services, family education, and advocacy for individuals with developmental disabilities in Nassau and surrounding areas.
Garden City, NY
Day Program Residential Family Education Advocacy
Heartshare Human Services
Nassau
Multi-service nonprofit with significant IDD footprint in Nassau County. Provides residential, day program, community habilitation, and family support with a focus on culturally responsive care.
Brooklyn / Nassau County
Residential Day Program Community Habilitation
Life's WORC
Nassau
Nassau-based IDD provider offering a full continuum of services including day hab, community habilitation, family education, and residential alternatives. Strong focus on family partnership and individual outcomes.
Garden City South, NY
Day Habilitation Family Education Community Habilitation

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