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

Mr. Justin Henry Gellar

Behavior Technician in Oxford, MS · enumerated 2016.

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

National Provider Identifier

1043754120

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Registry record

Entity type Individual (Type 1)
Name Mr. Justin Henry Gellar
Sex Male
Practice address Oxford, MS, 38655
Phone (662) 234-7521
Fax (662) 236-3071
Enumeration date Dec 8, 2016
Last updated in NPPES Dec 8, 2016

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

Taxonomy & licenses

106S00000X Behavior Technician 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

What is the NPI number for Justin Gellar?
The National Provider Identifier (NPI) for Justin Gellar is 1043754120, a Type 1 (individual) record in the CMS NPPES registry.
Where does Justin Gellar practice?
The practice location on file with NPPES is in Oxford, MS. 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 2016-12-08.