Individual provider · Type 1 NPI

Cassandra Mathelier, LCSW

Clinical Social Worker · Brooklyn, NY

NPI number 1932823796 Active

Practice location

808 Union St Ste 2B
Brooklyn, NY 11215-1375

Call (929) 955-1260 Map

Mailing address

203 Engert Ave Apt 2L
Brooklyn, NY 11222-5126

Specialties and licenses

TaxonomyCodeLicense
Clinical Social Worker Primary 1041C0700X104209 (NY)

Clinical Social Worker: A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpers…

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About NPI 1932823796

Cassandra Mathelier, LCSW's National Provider Identifier is 1932823796, issued on Sep 26, 2022. The primary taxonomy on file is Clinical Social Worker (1041C0700X), and the practice location is in Brooklyn, NY. The record was last updated on Oct 6, 2026.