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).

About Jonathan (yoni) Neff NPPES

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

JONATHAN (YONI) NEFF (NPI 1326924754) is an individual social worker in New York, New York, licensed in New Jersey (44SL07451500) and active in the NPI registry since August 2025. The provider maintains a secondary practice location in New York.

NPPES Registry Identity

NPI1326924754
Entity TypeIndividual
Primary Taxonomy104100000X
Provider Legal NameJONATHAN (YONI) NEFF
Location Address5 E 17TH ST FL 2New York, NY 10003-1949
Mailing Address5 E 17th St Fl 2New York, NY 10003-1949
Sole ProprietorYes
Enumeration DateAugust 12, 2025
Last NPPES UpdateJune 9, 20262 updates tracked since enumeration
NPPES CertifiedJune 9, 2026
NPI 1326924754 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
Licenses Licensed in NJ · 44SL07451500 Licensed in NY · 131750
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.

5 E 17TH ST FL 2, New York, NY 10003

Secondary Practice Location 1

Location 1276 5th Ave Rm 604New York, NY 10001-4527 · Phone (917) 847-7556

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

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.