Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mercy Haven Inc

Organization Mental Illness Community Based Residential Treatment Facility · NPI 1285762716

Mercy Haven Inc is a Mental Illness Community Based Residential Treatment Facility in Islip Terrace, New York. Licensed in New York. Registered with an NPI since 2007.

Licensed in
NY
In the registry since
2007
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

859 Connetquot Ave Ste 10
Islip Terrace, NY 11752-1400
Phone: (631) 277-8300
Fax: (631) 277-8394
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Illness Community Based Residential Treatment Facility (primary) Taxonomy 320800000X · Licence 01304012 (NY)

Record details

NPI number1285762716
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Patricia Griffith — Executive Director · (631) 277-8300
NPI enumeratedFebruary 28, 2007
Last updated in NPPESAugust 22, 2020
Mailing address859 Connetquot Ave Ste 10, Islip Terrace, NY 11752-1400