THEODORE SONNEBORN
NPI 1568063808
Social Worker - Clinical in Philadelphia, PA

Active since November 03, 2020
1700 SANSOM ST FL 11, PHILADELPHIA, PA 19103(215) 563-7863 Get Directions Write a Review

NPPES record last updated: August 12, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Aug 12, 2025, Nov 3, 2020 (2 updates tracked since 2020).

About Theodore Sonneborn NPPES

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

THEODORE SONNEBORN (NPI 1568063808) is an individual clinical provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (SW142450) and active in the NPI registry since November 2020. He maintains a secondary practice location in Corvallis.

NPPES Registry Identity

NPI1568063808
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameTHEODORE SONNEBORN
Location Address1700 SANSOM ST FL 11Philadelphia, PA 19103-5245
Mailing Address1700 Sansom St Fl 11Philadelphia, PA 19103-5245 · (215) 563-7863
Sole ProprietorNo
Enumeration DateNovember 3, 2020
Last NPPES UpdateAugust 12, 20252 updates tracked since enumeration
NPPES CertifiedAugust 12, 2025
NPI 1568063808 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
License Licensed in PA · SW142450
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 ListedCounselorTaxonomy 101Y00000X
1700 SANSOM ST FL 11, Philadelphia, PA 19103

Secondary Practice Location 1

Location 14455 NE Highway 20Corvallis, OR 97330-9695 · Phone (541) 758-5900

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.

Social Worker (Clinical)
1700 SANSOM ST FL 11
PHILADELPHIA, PA 19103
Social Worker (Clinical)
1700 SANSOM ST FL 11
PHILADELPHIA, PA 19103
Counselor (Mental Health)
1700 SANSOM ST FL 11
PHILADELPHIA, PA 19103
Social Worker
1700 SANSOM ST FL 11
PHILADELPHIA, PA 19103
Social Worker
1700 SANSOM ST FL 11
PHILADELPHIA, PA 19103
Social Worker
1700 SANSOM ST FL 11
PHILADELPHIA, PA 19103
Social Worker
1700 SANSOM ST FL 11
PHILADELPHIA, PA 19103
Social Worker
1700 SANSOM ST FL 11
PHILADELPHIA, PA 19103

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 Theodore Sonneborn's NPI number?

The NPI number for Theodore Sonneborn is 1568063808. It was assigned to this individual provider in the NPPES registry on November 3, 2020.

Where is Theodore Sonneborn located?

Theodore Sonneborn practices at 1700 Sansom St Fl 11, Philadelphia, PA 19103. The listed phone number is (215) 563-7863.

What is Theodore Sonneborn'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 Theodore Sonneborn was last updated on August 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.