Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

MS. Eileen S Hennessey

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1346578648

MS. Eileen S Hennessey is an Addiction (Substance Use Disorder) Counselor in Mendham, New Jersey. Registered with an NPI since 2009.

In the registry since
2009
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Practice location Address checks out

80 W Main St
Mendham, NJ 07945-1257 Not confirmed with CMS for 16 years — call before visiting
Phone: (973) 543-5656
Fax: (973) 543-1361
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Addiction (Substance Use Disorder) Counselor (primary) Taxonomy 101YA0400X

Record details

NPI number1346578648
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedNovember 24, 2009
Last updated in NPPESNovember 24, 2009

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