NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Isabelle R Smelkinson

Social Worker in Somerville, NJ · enumerated 2023.

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

National Provider Identifier

1285314021

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Registry record

Entity type Individual (Type 1)
Name Isabelle R Smelkinson
Sex Female
Practice address Somerville, NJ, 08876
Phone (908) 725-7799
Enumeration date Jul 18, 2023
Last updated in NPPES Jul 18, 2023

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 44SL06951800 (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

Where does Isabelle Smelkinson practice?
The practice location on file with NPPES is in Somerville, NJ. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Isabelle Smelkinson?
The National Provider Identifier (NPI) for Isabelle Smelkinson is 1285314021, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-18.