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

Marie Therese Sabry Guirguis

Behavior Analyst in North Bellmore, NY · enumerated 2025.

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

National Provider Identifier

1003788621

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Registry record

Entity type Individual (Type 1)

Name Marie Therese Sabry Guirguis

Sex Female

Practice address North Bellmore, NY, 11710

Phone (929) 355-3847

Enumeration date Sep 22, 2025

Last updated in NPPES Sep 22, 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 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Marie Therese Guirguis practice?

The practice location on file with NPPES is in North Bellmore, NY. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Marie Therese Guirguis?

The National Provider Identifier (NPI) for Marie Therese Guirguis is 1003788621, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-22.