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

Mrs. Deirdre Garland Olsen, LMSW

Individual provider Social Worker · NPI 1740914589

Mrs. Deirdre Garland Olsen, LMSW is a Social Worker in Manhasset, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2022
What do these letters mean?
LMSW — Licensed Master Social Worker
A master's-level social worker, usually practising under supervision.

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Practice location Address checks out

21 Rockhollow Rd
Manhasset, NY 11030-1115
Phone: (516) 220-2940
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Social Worker (primary) Taxonomy 104100000X · Licence 057889 (NY)

Record details

NPI number1740914589
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMSW
Sole proprietorYes
NPI enumeratedJuly 15, 2022
Last updated in NPPESJuly 20, 2022
Certification dateJuly 20, 2022

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