NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Diane Elaine Dejong, DT

Developmental Therapist in Elmhurst, IL · enumerated 2008 · practices at Pediatric Therapy of Illinois LLC.

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

National Provider Identifier

1831352996

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Registry record

Entity type Individual (Type 1)
Name Ms. Diane Elaine Dejong
Credential DT
Sex Female
Practice address 325 N Larch Ave, Elmhurst, IL, 60126
Phone (630) 782-1316
Enumeration date Jul 8, 2008
Last updated in NPPES Nov 19, 2008

Taxonomy & licenses

222Q00000X Developmental Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers 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 is the NPI number for Diane Dejong?
The National Provider Identifier (NPI) for Diane Dejong is 1831352996, a Type 1 (individual) record in the CMS NPPES registry.
Where does Diane Dejong practice?
The practice location on file with NPPES is in Elmhurst, IL. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-11-19.