Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Julia Choe-Castillo, MPH, LSW
Social Worker in Philadelphia, PA · enumerated 2025.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1336959071
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Registry record
Entity type Individual (Type 1)
Name Julia Choe-Castillo
Credential MPH, LSW
Sex Female
Practice address 123 Chestnut St Ste 402, Philadelphia, PA, 19106
Phone (215) 847-6749
Enumeration date Jan 13, 2025
Last updated in NPPES Jan 13, 2025
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License SW140518 (PA) Primary
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Julia Choe-Castillo?
Julia Choe-Castillo is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Gabrielle Salomone Clinical Social Worker · Philadelphia, PA NPI 1497052724 Aleksandra Freiling Clinical Social Worker · Philadelphia, PA NPI 1205597358 Hannah Smith Social Worker · Philadelphia, PA NPI 1588348940 Victoria Yamasaki Student in an Organized Health Care Education/Training Program · Philadelphia, PA NPI 1366267510 Gillian Cedrone Mental Health Counselor · Philadelphia, PA NPI 1376339853 Debra Aiken Mental Health Counselor · Philadelphia, PA NPI 1912864786
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-01-13.