Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marlon Christopher Williams

Behavior Analyst in Tampa, FL · enumerated 2020.

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

National Provider Identifier

1427683440

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Registry record

Entity type Individual (Type 1)

Name Marlon Christopher Williams

Sex Male

Practice address 8875 Hidden River Pkwy Ste 300, Tampa, FL, 33637

Phone (813) 367-2067

Enumeration date Mar 10, 2020

Last updated in NPPES Mar 10, 2020

Taxonomy & licenses

103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License W452543892500 (FL) 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 specialty is Marlon Williams?

Marlon Williams is registered in NPPES with the primary taxonomy of Behavior Analyst. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-03-10.