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

Marc Billy Stephen

Behavior Analyst in Port Saint Lucie, FL · enumerated 2021.

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

National Provider Identifier

1376135640

Verified

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Registry record

Entity type Individual (Type 1)

Name Marc Billy Stephen

Sex Male

Practice address Port Saint Lucie, FL, 34952

Phone (772) 212-7539

Enumeration date Feb 8, 2021

Last updated in NPPES Jan 19, 2026

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 · License 1-26-87080 (FL) Primary

106S00000X Behavior Technician Behavioral Health & Social Service Providers Secondary

Other identifiers

Identifier	Type	State	Issuer
110025600	Medicaid	FL	-

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 Marc Stephen's NPI record?

Cross-check NPI 1376135640 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1376135640 active?

Yes, as of the latest NPPES snapshot, NPI 1376135640 is active (record last updated 2026-01-19).

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Frederick Stevens Psychologist · Port St Lucie, FL NPI 1629070438 Apollo Home Health Care Services, Inc. Home Health Agency · Port St Lucie, FL NPI 1295710168 Jacob A Samander MD PA Psychiatry Physician · Port St Lucie, FL NPI 1356580567 Ansas LLC Psychiatry Physician · Port St Lucie, FL NPI 1730448135 Salma Chirinos Behavior Analyst · Port St Lucie, FL NPI 1972178689 Hannah Vergara Behavior Analyst · Port Saint Lucie, FL NPI 1689325318 Suchitel Cuadras-Diaz Behavior Technician · Port St Lucie, FL NPI 1093547671

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-19.