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

Sandy Pierre-Louis

Behavior Analyst in Commack, NY · enumerated 2019.

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

National Provider Identifier

1538702634

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Registry record

Entity type Individual (Type 1)

Name Sandy Pierre-Louis

Sex Female

Practice address Commack, NY, 11725

Phone (631) 864-7770

Enumeration date Oct 21, 2019

Last updated in NPPES Oct 21, 2019

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.

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Frequently asked questions

How do I verify Sandy Pierre-Louis's NPI record?

Cross-check NPI 1538702634 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1538702634 active?

Yes — as of the latest NPPES snapshot, NPI 1538702634 is active (record last updated 2019-10-21).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-10-21.