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

Marcus Dunnick

Behavior Analyst in Stanton, CA · enumerated 2019 · practices at Active Steps.

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

National Provider Identifier

1477119147

Verified

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Registry record

Entity type Individual (Type 1)

Name Marcus Dunnick

Sex Male

Practice address Stanton, CA, 90680

Phone (714) 202-0118

Enumeration date May 17, 2019

Last updated in NPPES Jun 11, 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Marcus Dunnick practice?

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

What is the NPI number for Marcus Dunnick?

The National Provider Identifier (NPI) for Marcus Dunnick is 1477119147, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-06-11.