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

MS. Allison Lewin Deehan, LCSW

Individual provider Social Worker · NPI 1497121891

MS. Allison Lewin Deehan, LCSW is a Social Worker in Southport, Connecticut. Works from 2 locations. Licensed in Connecticut and New York.

Licensed in
CT, NY
In the registry since
2015
Specialties on file
3
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

430 Mill Hill Ter
Southport, CT 06890-1232
Phone: (240) 401-6215
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 128 W 81st St, New York, NY 10024-5952 — (240) 401-6215

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 088052 (NY)
Social Worker Taxonomy 104100000X · Licence 095068 (NY)
Clinical Social Worker Taxonomy 1041C0700X · Licence 011412 (CT)

Record details

NPI number1497121891
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorNo
NPI enumeratedAugust 19, 2015
Last updated in NPPESJanuary 9, 2023
Certification dateJanuary 9, 2023
Mailing address1201 Kings Hwy Ste 2, Fairfield, CT 06824-5319

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