Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

LEILA HARTSTEIN
NPI 1902723208
Social Worker - Clinical in Portsmouth, NH

Active since June 30, 2026
170 COMMERCE WAY, PORTSMOUTH, NH 03801(617) 894-9662 Get Directions Write a Review

NPPES record added: August 25, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

About Leila Hartstein NPPES

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

LEILA HARTSTEIN (NPI 1902723208) is an individual clinical provider in Portsmouth, New Hampshire, licensed in New Hampshire (6007) and active in the NPI registry since June 2026.

NPPES Registry Identity

NPI1902723208
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameLEILA HARTSTEIN
Location Address170 COMMERCE WAYPortsmouth, NH 03801-3226
Mailing Address170 Commerce WayPortsmouth, NH 03801-3226
Sole ProprietorNo
Enumeration DateJune 30, 2026
Last NPPES UpdateAugust 25, 2026
NPPES CertifiedAugust 25, 2026
NPI 1902723208 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
Licenses Licensed in NH · 6007 Licensed in ME · LC26255
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.
170 COMMERCE WAY, Portsmouth, NH 03801

Other Providers at the Same Location NPPES 3

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

In Home Supportive Care
170 COMMERCE WAY
PORTSMOUTH, NH 03801
Psychiatry & Neurology (Psychiatry)
170 COMMERCE WAY
PORTSMOUTH, NH 03801
Social Worker (Clinical)
170 COMMERCE WAY
PORTSMOUTH, NH 03801

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 Leila Hartstein's NPI number?

The NPI number for Leila Hartstein is 1902723208. It was assigned to this individual provider in the NPPES registry on June 30, 2026.

Where is Leila Hartstein located?

Leila Hartstein practices at 170 Commerce Way, Portsmouth, NH 03801. The listed phone number is (617) 894-9662.

What is Leila Hartstein'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 Leila Hartstein was last updated on August 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.