NPI Portal NPI Lookup & Verification

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

Dr. Dorothy C Handfield

Behavior Analyst in Orange, NJ · enumerated 2021 · practices at Dch Consulting Services, LLC.

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

National Provider Identifier

1851064141

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Registry record

Entity type Individual (Type 1)
Name Dr. Dorothy C Handfield
Sex Female
Practice address Orange, NJ, 07050
Phone (862) 235-0141
Enumeration date Aug 1, 2021
Last updated in NPPES Jan 4, 2025

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

Taxonomy & licenses

103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 1-21-51527 (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 Dorothy Handfield practice?
The practice location on file with NPPES is in Orange, NJ. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Dorothy Handfield?
The National Provider Identifier (NPI) for Dorothy Handfield is 1851064141, 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 2025-01-04.