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ABBY LEEFER, LICENSED CLINICAL SOCIAL WORKER, PC
NPI 1417575721
Social Worker - Clinical in Port Jefferson, NY

Active since July 13, 2020
710 MAIN ST, PORT JEFFERSON, NY 11777(631) 928-9808 Get Directions Write a Review

NPPES record last updated: July 13, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Abby Leefer, Licensed Clinical Social Worker, Pc NPPES

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

ABBY LEEFER, LICENSED CLINICAL SOCIAL WORKER, PC (NPI 1417575721) is a healthcare organization registered as a clinical in Port Jefferson, New York and active in the NPI registry since July 2020. The organization lists Donna Labriola, Billing Manager, as its authorized official.

NPPES Registry Identity

NPI1417575721
Entity TypeOrganization
Primary Taxonomy1041C0700X
Legal Business NameABBY LEEFER, LICENSED CLINICAL SOCIAL WORKER, PC
Location Address710 MAIN STPort Jefferson, NY 11777-2278
Mailing Address35 Puritan PathPort Jefferson, NY 11777-1456 · (631) 928-9808
Phone(631) 928-9808
Organization SubpartNo
Authorized OfficialDonna LabriolaBilling Manager · (631) 553-6360
Enumeration DateJuly 13, 2020
NPPES CertifiedJuly 13, 2020
✔ NPI 1417575721 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.
710 MAIN ST, Port Jefferson, NY 11777
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Other Names 1

Other NameAbby Leefer, Lcsw, Pc

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)

Abby Leefer, Licensed Clinical Social Worker, Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Abby Leefer, Licensed Clinical Social Worker, PC, which bills Medicare for the services they deliver. Of these, 1 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (2)

Abby Leefer, LCSW
Clinical Social Worker
NPI 1003888413
35 PURITAN PATH
Port Jefferson, NY 11777
(631) 928-9808
✔ PECOS✔ Accepts Medicare1.0 mi
Elizabeth Cooke
Clinical Social Worker
NPI 1386294866
521 GLEN COVE AVE
Glen Head, NY 11545
(310) 804-3220
✔ PECOS31 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 Abby Leefer, Licensed Clinical Social Worker, PC's NPI number?

The NPI number for Abby Leefer, Licensed Clinical Social Worker, PC is 1417575721. It was assigned to this organization in the NPPES registry on July 13, 2020. The provider is also known as Abby Leefer, LCSW, PC.

Where is Abby Leefer, Licensed Clinical Social Worker, PC located?

Abby Leefer, Licensed Clinical Social Worker, PC is located at 710 Main St, Port Jefferson, NY 11777. The listed phone number is (631) 928-9808.

What is Abby Leefer, Licensed Clinical Social Worker, PC's specialty?

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

Is Abby Leefer, Licensed Clinical Social Worker, PC enrolled in Medicare?

Yes. Abby Leefer, Licensed Clinical Social Worker, PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Abby Leefer, Licensed Clinical Social Worker, PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Clinical Social Worker, reassign their Medicare billing to Abby Leefer, Licensed Clinical Social Worker, PC. 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. Of these, 1 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Abby Leefer, Licensed Clinical Social Worker, PC was last updated on July 13, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.