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

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1487271540

Sierra Elizabeth Gallagi, LCSW is an Addiction (Substance Use Disorder) Counselor in New Haven, Connecticut. Licensed in Connecticut. Registered with an NPI since 2020.

Licensed in
CT
In the registry since
2020
Specialties on file
4
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

232 Cedar St
New Haven, CT 06519-1610
Phone: (203) 503-3300
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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 12772 (CT)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence 1440 (CT)
Social Worker Taxonomy 104100000X · Licence 5493 (CT)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1487271540
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorNo
NPI enumeratedJuly 6, 2020
Last updated in NPPESMarch 15, 2023
Certification dateMarch 15, 2023

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