JONATHAN (YONI) NEFF
NPI 1326924754
Social Worker in New York, NY

Active since August 12, 2025
5 E 17TH ST FL 2, NEW YORK, NY 10003(212) 989-2990 Get Directions Write a Review

NPPES record last updated: June 9, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: May 27, 2026, Aug 12, 2025 (2 updates tracked since 2025).

  • Individual
  • Social Worker

About JONATHAN (YONI) NEFF

This page provides the complete NPI Profile along with additional information for Jonathan (yoni) Neff, a provider established in New York, New York operating as a Social Worker. The healthcare provider is registered in the NPI registry with number 1326924754 assigned on August 2025. The practitioner's primary taxonomy code is 104100000X with license number 44SL07451500 (NJ). The provider is registered as an individual and their NPI record was last updated June 2026. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization.

NPI
1326924754 Verify this NPI
Provider Name
JONATHAN (YONI) NEFF
Gender
Entity Type
Individual
Location Address
5 E 17TH ST FL 2 NEW YORK, NY 10003
Location Phone
(212) 989-2990
Mailing Address
5 E 17TH ST FL 2 NEW YORK, NY 10003
Is Sole Proprietor?
Yes
Enumeration Date
08-12-2025
Last Update Date
06-09-2026
Code Navigator

A social worker like Jonathan (yoni) Neff helps patients solve and cope with problems in their everyday lives, diagnoses and treats mental, behavioral, and emotional problems. Social workers help in wide range of situations, such as adopting a child, illness, divorce, or unemployment.

Location Map

Secondary Locations

  • 276 5th Ave Rm 604
    New York, NY 10001
    (917) 847-7556

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Social Worker

Taxonomy Code
104100000X
Type
Behavioral Health & Social Service Providers
License No.
44SL07451500
License State
NJ
Taxonomy Description
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1104100000XBehavioral Health & Social Service Providers

Social Worker

131750 (NY)

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

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Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Counselor (Mental Health)
5 E 17TH ST FL 2
NEW YORK, NY 10003
Counselor (Mental Health)
5 E 17TH ST FL 2
NEW YORK, NY 10003
Counselor (Mental Health)
5 E 17TH ST FL 2
NEW YORK, NY 10003
Counselor (Mental Health)
5 E 17TH ST FL 2
NEW YORK, NY 10003
Counselor (Mental Health)
5 E 17TH ST FL 2
NEW YORK, NY 10003
Counselor (Mental Health)
5 E 17TH ST FL 2
NEW YORK, NY 10003
Counselor (Mental Health)
5 E 17TH ST FL 2
NEW YORK, NY 10003
Counselor (Mental Health)
5 E 17TH ST FL 2
NEW YORK, NY 10003
Counselor (Mental Health)
5 E 17TH ST FL 2
NEW YORK, NY 10003
Counselor (Mental Health)
5 E 17TH ST FL 2
NEW YORK, NY 10003
Counselor (Mental Health)
5 E 17TH ST FL 2
NEW YORK, NY 10003
Counselor (Mental Health)
5 E 17TH ST FL 2
NEW YORK, NY 10003
Counselor (Mental Health)
5 E 17TH ST FL 2
NEW YORK, NY 10003
Social Worker
5 E 17TH ST FL 2
NEW YORK, NY 10003
Social Worker
5 E 17TH ST FL 2
NEW YORK, NY 10003
Social Worker (Clinical)
5 E 17TH ST FL 2
NEW YORK, NY 10003
Counselor (Mental Health)
5 E 17TH ST FL 2
NEW YORK, NY 10003
Counselor (Mental Health)
5 E 17TH ST FL 2
NEW YORK, NY 10003
Student in an Organized Health Care Education/Training Program
5 E 17TH ST FL 2
NEW YORK, NY 10003
Student in an Organized Health Care Education/Training Program
5 E 17TH ST FL 2
NEW YORK, NY 10003

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1326924754, enumerated as an "individual" on August 12, 2025.

The provider is located at 5 E 17TH ST FL 2 NEW YORK, NY 10003 and the phone number is (212) 989-2990.

Social Worker with taxonomy code 104100000X.