ELIZABETH ANN PORTNOY LCSW
NPI 1669343109
Social Worker - Clinical in Chelsea, MA

Active since September 17, 2025
299 EVERETT AVE, CHELSEA, MA 02150(617) 466-5065 Get Directions Write a Review

NPPES record last updated: September 17, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Elizabeth Ann Portnoy Lcsw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ELIZABETH ANN PORTNOY LCSW (NPI 1669343109) is an individual clinical provider in Chelsea, Massachusetts, licensed in Massachusetts (229813) and active in the NPI registry since September 2025.

NPPES Registry Identity

NPI1669343109
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameELIZABETH ANN PORTNOYCredential: LCSW
Location Address299 EVERETT AVEChelsea, MA 02150-1547
Mailing Address299 Everett AveChelsea, MA 02150-1547 · (617) 466-5065
Sole ProprietorNo
Enumeration DateSeptember 17, 2025
NPPES CertifiedSeptember 17, 2025
NPI 1669343109 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License Licensed in MA · 229813
Definition
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 interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
299 EVERETT AVE, Chelsea, MA 02150

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Specialist/Technologist (Athletic Trainer)
299 EVERETT AVE
CHELSEA, MA 02150
Social Worker (Clinical)
299 EVERETT AVE
CHELSEA, MA 02150
Social Worker (Clinical)
299 EVERETT AVE
CHELSEA, MA 02150
Social Worker (School)
299 EVERETT AVE
CHELSEA, MA 02150
Nurse Practitioner (Pediatrics)
299 EVERETT AVE, CHELSEA HIGH SCHOOL STUDENT HEALTH CENTER
CHELSEA, MA 02150
Social Worker (School)
299 EVERETT AVE
CHELSEA, MA 02150

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Elizabeth Portnoy's NPI number?

The NPI number for Elizabeth Portnoy is 1669343109. It was assigned to this individual provider in the NPPES registry on September 17, 2025.

Where is Elizabeth Portnoy located?

Elizabeth Portnoy practices at 299 Everett Ave, Chelsea, MA 02150. The listed phone number is (617) 466-5065.

What is Elizabeth Portnoy's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

When was this NPI record last updated?

The NPPES record for Elizabeth Portnoy was last updated on September 17, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.