Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

JONATHAN SEM LCSW
NPI 1174022156
Social Worker - Clinical in East Meadow, NY

Active since February 06, 2018
454 GARDEN ST, EAST MEADOW, NY 11554(719) 559-0555 Get Directions Write a Review

NPPES record last updated: October 19, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Jonathan Sem Lcsw NPPES

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

JONATHAN SEM LCSW (NPI 1174022156) is an individual clinical provider in East Meadow, New York, licensed in New York (101880) and active in the NPI registry since February 2018.

NPPES Registry Identity

NPI1174022156
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameJONATHAN SEMCredential: LCSW
Location Address454 GARDEN STEast Meadow, NY 11554-2905
Mailing Address454 Garden StEast Meadow, NY 11554-2905
Sole ProprietorNo
Enumeration DateFebruary 6, 2018
Last NPPES UpdateOctober 19, 2026
NPPES CertifiedOctober 19, 2026
✔ NPI 1174022156 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 · 101880
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.
454 GARDEN ST, East Meadow, NY 11554

Other Providers at the Same Location NPPES

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

Early Intervention Provider Agency
454 GARDEN ST
EAST MEADOW, NY 11554

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 Jonathan Sem's NPI number?

The NPI number for Jonathan Sem is 1174022156. It was assigned to this individual provider in the NPPES registry on February 6, 2018.

Where is Jonathan Sem located?

Jonathan Sem practices at 454 Garden St, East Meadow, NY 11554. The listed phone number is (719) 559-0555.

What is Jonathan Sem'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 Jonathan Sem was last updated on October 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.