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

Cassandra Mathelier, MSW

Individual provider Social Worker · NPI 1932823796

Cassandra Mathelier, MSW is a Social Worker in Brooklyn, New York. Works from 2 locations. Licensed in New York.

Licensed in
NY
In the registry since
2022
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.

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Practice location Address checks out

808 Union St Ste 2B
Brooklyn, NY 11215-1375
Phone: (929) 955-1260
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 46 Gramatan Ave # 1077, Mount Vernon, NY 10550-1306 — (838) 356-4441

Specialties & licences

Social Worker (primary) Taxonomy 104100000X · Licence 117642 (NY)

Record details

NPI number1932823796
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSW
Sole proprietorNo
NPI enumeratedSeptember 26, 2022
Last updated in NPPESFebruary 20, 2024
Certification dateFebruary 20, 2024

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