Individual provider · Type 1 NPI

Mary Lynn Diaz, LCSW

Clinical Social Worker · Watertown, MA

NPI number 1801761507 Active

Practice location

480 Pleasant St
Watertown, MA 02472-2463

Mailing address

256 S Westfield St
Feeding Hills, MA 01030-2730

Specialties and licenses

TaxonomyCodeLicense
Clinical Social Worker Primary 1041C0700XNone listed

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 1801761507

Mary Lynn Diaz, LCSW's National Provider Identifier is 1801761507, issued on Oct 10, 2025. The primary taxonomy on file is Clinical Social Worker (1041C0700X), and the practice location is in Watertown, MA. The record was last updated on Oct 10, 2025.