Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

ERIN ANN O'NEILL
NPI 1184547200
Social Worker - Clinical in Philadelphia, PA

Active since August 04, 2026
4601 MARKET ST, PHILADELPHIA, PA 19139(215) 878-3400 Get Directions Write a Review

NPPES record added: August 4, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Erin Ann O'neill NPPES

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

ERIN ANN O'NEILL (NPI 1184547200) is an individual clinical provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (CW027711) and active in the NPI registry since August 2026. She maintains a secondary practice location in Philadelphia.

NPPES Registry Identity

NPI1184547200
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameERIN ANN O'NEILL
Location Address4601 MARKET STPhiladelphia, PA 19139-4636
Mailing Address4601 Market StPhiladelphia, PA 19139-4636 · (215) 878-3400
Sole ProprietorNo
Enumeration DateAugust 4, 2026
NPPES CertifiedAugust 4, 2026
NPI 1184547200 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 PA · CW027711
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.
4601 MARKET ST, Philadelphia, PA 19139

Secondary Practice Location 1

Location 12801 Grant AvePhiladelphia, PA 19114-1032 · Phone (215) 878-3400

Other Providers at the Same Location NPPES 20

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

Counselor (Professional)
4601 MARKET ST
PHILADELPHIA, PA 19139
Behavior Analyst
4601 MARKET ST
PHILADELPHIA, PA 19139
Social Worker (Clinical)
4601 MARKET ST
PHILADELPHIA, PA 19139
Registered Nurse
4601 MARKET ST
PHILADELPHIA, PA 19139
Behavior Analyst
4601 MARKET ST
PHILADELPHIA, PA 19139
Psychologist (Clinical Child & Adolescent)
4601 MARKET ST
PHILADELPHIA, PA 19139
Registered Nurse
4601 MARKET ST
PHILADELPHIA, PA 19139
Registered Nurse
4601 MARKET ST
PHILADELPHIA, PA 19139

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 Erin O'neill's NPI number?

The NPI number for Erin O'neill is 1184547200. It was assigned to this individual provider in the NPPES registry on August 4, 2026.

Where is Erin O'neill located?

Erin O'neill practices at 4601 Market St, Philadelphia, PA 19139. The listed phone number is (215) 878-3400.

What is Erin 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 Erin O'neill was last updated on August 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.