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MARGALIET LIGTENSTEIN LLC
NPI 1285395418
Social Worker - Clinical in Hamden, CT

Active since January 10, 2022
1 EVERGREEN AVE STE 24, HAMDEN, CT 06518(203) 530-0697 Get Directions Write a Review

NPPES record last updated: January 10, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Margaliet Ligtenstein Llc NPPES

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

MARGALIET LIGTENSTEIN LLC (NPI 1285395418) is a healthcare organization registered as a clinical in Hamden, Connecticut and active in the NPI registry since January 2022. The organization lists Margaliet Ligtenstein, Owner, as its authorized official.

NPPES Registry Identity

NPI1285395418
Entity TypeOrganization
Primary Taxonomy1041C0700X
Legal Business NameMARGALIET LIGTENSTEIN LLC
Location Address1 EVERGREEN AVE STE 24Hamden, CT 06518-2732
Mailing Address54 Ardmore StHamden, CT 06517-1300 · (203) 530-0697
Phone(203) 530-0697
Organization SubpartNo
Authorized OfficialMargaliet LigtensteinOwner · (203) 530-0697
Enumeration DateJanuary 10, 2022
NPPES CertifiedJanuary 10, 2022
✔ NPI 1285395418 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
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.
1 EVERGREEN AVE STE 24, Hamden, CT 06518
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Margaliet Ligtenstein Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Margaliet Ligtenstein LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Margaliet Ligtenstein, LCSW
Clinical Social Worker
NPI 1558596999
1440 WHALLEY AVE
New Haven, CT 06515
(203) 389-5599
✔ PECOS5.7 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Margaliet Ligtenstein LLC's NPI number?

The NPI number for Margaliet Ligtenstein LLC is 1285395418. It was assigned to this organization in the NPPES registry on January 10, 2022.

Where is Margaliet Ligtenstein LLC located?

Margaliet Ligtenstein LLC is located at 1 Evergreen Ave Ste 24, Hamden, CT 06518. The listed phone number is (203) 530-0697.

What is Margaliet Ligtenstein LLC's specialty?

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

Is Margaliet Ligtenstein LLC enrolled in Medicare?

Yes. Margaliet Ligtenstein LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Margaliet Ligtenstein LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Social Worker) reassigns their Medicare billing to Margaliet Ligtenstein LLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Margaliet Ligtenstein LLC was last updated on January 10, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.