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HOLLOW HILLS LICENSED CLINICAL SOCIAL WORK P.C.
NPI 1346495710
Social Worker in Dix Hills, NY

Active since November 26, 2008
31 MELROSE RD, DIX HILLS, NY 11746(631) 425-1168(631) 673-0313 Get Directions Write a Review

NPPES record last updated: March 11, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Hollow Hills Licensed Clinical Social Work P.c. NPPES

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

HOLLOW HILLS LICENSED CLINICAL SOCIAL WORK P.C. (NPI 1346495710) is a healthcare organization registered as a social worker in Dix Hills, New York and active in the NPI registry since November 2008. The organization lists Marilyn Fenty, Office Manager, as its authorized official.

NPPES Registry Identity

NPI1346495710
Entity TypeOrganization
Primary Taxonomy104100000X
Legal Business NameHOLLOW HILLS LICENSED CLINICAL SOCIAL WORK P.C.
Location Address31 MELROSE RDDix Hills, NY 11746-5610
Mailing Address31 Melrose RdDix Hills, NY 11746-5610 · (631) 573-0311 · Fax (631) 673-0313
Phone(631) 425-1168
Fax(631) 673-0313
Organization SubpartNo
Authorized OfficialMarilyn FentyOffice Manager · (631) 673-0311
Enumeration DateNovember 26, 2008
Last NPPES UpdateMarch 11, 2026
NPPES CertifiedMarch 11, 2026
✔ NPI 1346495710 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
License✔ Licensed in NY · R054186-1
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
31 MELROSE RD, Dix Hills, NY 11746
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-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)

Hollow Hills Licensed Clinical Social Work P.c. 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 Hollow Hills Licensed Clinical Social Work P.C., which bills Medicare for the services this clinician delivers.

Clinician (1)

William Fenty, LCSW
Clinical Social Worker
NPI 1730303454
31 MELROSE RD
Dix Hills, NY 11746
(631) 425-1168
✔ PECOS✔ Accepts MedicareSame address

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 Hollow Hills Licensed Clinical Social Work P.C.'s NPI number?

The NPI number for Hollow Hills Licensed Clinical Social Work P.C. is 1346495710. It was assigned to this organization in the NPPES registry on November 26, 2008.

Where is Hollow Hills Licensed Clinical Social Work P.C. located?

Hollow Hills Licensed Clinical Social Work P.C. is located at 31 Melrose Rd, Dix Hills, NY 11746. The listed phone number is (631) 425-1168.

What is Hollow Hills Licensed Clinical Social Work P.C.'s specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

Is Hollow Hills Licensed Clinical Social Work P.C. enrolled in Medicare?

Yes. Hollow Hills Licensed Clinical Social Work P.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Hollow Hills Licensed Clinical Social Work P.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Social Worker) reassigns their Medicare billing to Hollow Hills Licensed Clinical Social Work P.C.. 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 Hollow Hills Licensed Clinical Social Work P.C. was last updated on March 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.