MR. JOHN L. O'NEILL MSW, LICSW
NPI 1336421395
Social Worker - Clinical in West Springfield, MA

Active since September 15, 2011
103 MYRON STREET SUITE A, WEST SPRINGFIELD, MA 01089(413) 592-1980(413) 439-0100 Get Directions Write a Review

NPPES record last updated: March 1, 2018. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Mar 1, 2018, Feb 23, 2018 (2 updates tracked since 2018).

About Mr. John L. O'neill Msw, Licsw NPPES

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

MR. JOHN L. O'NEILL MSW, LICSW (NPI 1336421395) is an individual clinical provider in West Springfield, Massachusetts, licensed in Massachusetts (119129) and active in the NPI registry since September 2011.

NPPES Registry Identity

NPI1336421395
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameMR. JOHN L. O'NEILLCredential: MSW, LICSW
Location Address103 MYRON STREET SUITE AWest Springfield, MA 01089
Mailing Address103 Myron Street Suite AWest Springfield, MA 01089 · (413) 592-1980 · Fax (413) 439-0100
Fax(413) 439-0100
Sole ProprietorYes
Enumeration DateSeptember 15, 2011
Last NPPES UpdateMarch 1, 20182 updates tracked since enumeration
NPI 1336421395 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 MA · 119129
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.
103 MYRON STREET SUITE A, West Springfield, MA 01089

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

Other Providers at the Same Location NPPES

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

Social Worker (Clinical)
103 MYRON STREET SUITE A
WEST SPRINGFIELD, MA 01089

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 John O'neill's NPI number?

The NPI number for John O'neill is 1336421395. It was assigned to this individual provider in the NPPES registry on September 15, 2011.

Where is John O'neill located?

John O'neill practices at 103 Myron Street Suite A, West Springfield, MA 01089. The listed phone number is (413) 592-1980.

What is John O'neill'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 John O'neill was last updated on March 1, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.