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

MS. Denise Claire Messier, LCSW

Individual provider Clinical Social Worker · NPI 1891825113

MS. Denise Claire Messier, LCSW is a Clinical Social Worker in Hauppauge, 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?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

725 Veteran's Memorial Hwy Bldg 151
Hauppauge, NY 11788 Not confirmed with CMS for 19 years — call before visiting
Phone: (631) 853-6410
Fax: (631) 853-6413
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 0737381 (NY)

Record details

NPI number1891825113
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorNo
NPI enumeratedMarch 6, 2007
Last updated in NPPESSeptember 4, 2007

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