Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexia Arntz, LSW

Social Worker in Somerville, NJ · enumerated 2013.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1881935716

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Registry record

Entity type Individual (Type 1)

Name Alexia Arntz

Credential LSW

Sex Female

Practice address 150 W High St Ste A, Somerville, NJ, 08876

Phone (908) 725-7799

Fax (908) 725-0284

Enumeration date Mar 1, 2013

Last updated in NPPES Mar 7, 2013

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 44SL05650700 (NJ) 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.

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Frequently asked questions

What specialty is Alexia Arntz?

Alexia Arntz 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.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-03-07.