Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Challa Gregory

Addiction (Substance Use Disorder) Counselor in Van Nuys, CA · enumerated 2015 · practices at The Teen Project, Inc..

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

National Provider Identifier

1821467580

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Registry record

Entity type Individual (Type 1)

Name Challa Gregory

Sex Female

Practice address 14530 Sylvan St, Van Nuys, CA, 91411

Phone (818) 582-8832

Fax (818) 582-8836

Enumeration date Sep 23, 2015

Last updated in NPPES Mar 23, 2026

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social 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

How do I verify Challa Gregory's NPI record?

Cross-check NPI 1821467580 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1821467580 active?

Yes, as of the latest NPPES snapshot, NPI 1821467580 is active (record last updated 2026-03-23).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-23.