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JOHN CALVIN O'NEIL JR. LCSW, LADC
NPI 1457167769
Social Worker - Clinical in Milford, CT

Active since December 10, 2024
86 CHERRY ST FL 2, MILFORD, CT 06460(203) 249-7837 Get Directions Write a Review

NPPES record last updated: October 3, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About John Calvin O'neil Jr. Lcsw, Ladc NPPES

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

JOHN CALVIN O'NEIL JR. LCSW, LADC (NPI 1457167769) is an individual clinical provider in Milford, Connecticut, licensed in Connecticut (012916) and active in the NPI registry since December 2024.

NPPES Registry Identity

NPI1457167769
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameJOHN CALVIN O'NEIL JR.Credential: LCSW, LADC
Location Address86 CHERRY ST FL 2Milford, CT 06460-3413
Mailing Address86 Cherry St Fl 2Milford, CT 06460-3413 · (203) 249-7837
Phone(203) 249-7837
Sole ProprietorYes
Enumeration DateDecember 10, 2024
Last NPPES UpdateOctober 3, 2025
NPPES CertifiedOctober 3, 2025
✔ NPI 1457167769 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
Licenses✔ Licensed in CT · 012916✔ Licensed in VT · 089.0136543TELE
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.
Also ListedCounselor · Addiction (Substance Use Disorder)Taxonomy 101YA0400X · License 001419 (CT)
86 CHERRY ST FL 2, Milford, CT 06460
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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'neil's NPI number?

The NPI number for John O'neil is 1457167769. It was assigned to this individual provider in the NPPES registry on December 10, 2024.

Where is John O'neil located?

John O'neil practices at 86 Cherry St Fl 2, Milford, CT 06460. The listed phone number is (203) 249-7837.

What is John O'neil'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'neil was last updated on October 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.