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

Individual provider Clinical Social Worker · NPI 1316266497

Mrs. Sonia Trefflich, LCSW is a Clinical Social Worker in North las Vegas, Nevada. Practices as a sole proprietor. Licensed in California, Nevada and Texas.

Licensed in
CA, NV, TX
In the registry since
2010
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

3890 W Ann Rd Ste 100
North las Vegas, NV 89031-4417
Phone: (916) 713-3455
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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 9092-C (NV)
Clinical Social Worker Taxonomy 1041C0700X · Licence 82541 (CA)
Clinical Social Worker Taxonomy 1041C0700X · Licence 57392 (TX)

Record details

NPI number1316266497
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorYes
NPI enumeratedMay 27, 2010
Last updated in NPPESJanuary 7, 2022
Certification dateJanuary 7, 2022

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