KELLI MASTELLON LMSW
NPI 1851560338
Social Worker - Clinical in Seaford, NY

Q: What is Kelli Mastellon's NPI number?

The NPI number for Kelli Mastellon is 1851560338. It was assigned to this individual provider in the NPPES registry on February 28, 2008.

Q: What is Kelli Mastellon's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Kelli Mastellon was last updated on February 28, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.

Active since February 28, 2008

2146 JACKSON AVE, SEAFORD, NY 11783(516) 221-3030(516) 221-4160 Get Directions Write a Review

NPPES record last updated: February 28, 2008. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Kelli Mastellon Lmsw NPPES

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

KELLI MASTELLON LMSW (NPI 1851560338) is an individual clinical provider in Seaford, New York, licensed in New York (075340-1) and active in the NPI registry since February 2008.

NPPES Registry Identity

NPI1851560338

Entity TypeIndividualFemale

Primary Taxonomy1041C0700X

Provider Legal NameKELLI MASTELLONCredential: LMSW

Location Address2146 JACKSON AVESeaford, NY 11783-2606

Mailing Address2146 Jackson AveSeaford, NY 11783-2606 · (516) 221-3030 · Fax (516) 221-4160

Phone(516) 221-3030

Fax(516) 221-4160

Sole ProprietorYes

Enumeration DateFebruary 28, 2008

✔ NPI 1851560338 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 NY · 075340-1

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.

2146 JACKSON AVE, Seaford, NY 11783

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Other Providers at the Same Location NPPES 20

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

MRS. TRICIA SIMONE FAMILUSI

Registered Nurse (Psychiatric/Mental Health, Adult)