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

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1245607944

Claire Olsen, LCSW is an Addiction (Substance Use Disorder) Counselor in Lake Grove, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2015
Specialties on file
2
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

12 Colmar Ave
Lake Grove, NY 11755-2711
Phone: (631) 467-8788
Fax: (631) 467-8843
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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 069297 (NY)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence 1890 (NY)

Record details

NPI number1245607944
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorYes
NPI enumeratedAugust 28, 2015
Last updated in NPPESAugust 28, 2015

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