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

Mr. Marcus Samuel Maddox, SLP

Speech-Language Pathologist in Mableton, GA · enumerated 2006.

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

National Provider Identifier

1083692552

Verified

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Registry record

Entity type Individual (Type 1)

Name Mr. Marcus Samuel Maddox

Credential SLP

Sex Male

Practice address Mableton, GA, 30126

Phone (678) 481-7209

Fax (678) 669-2325

Enumeration date Jan 5, 2006

Last updated in NPPES Jan 30, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License SLP005885 (GA) Primary

SLP · Speech-Language Pathologist: A licensed clinician treating speech, language, and swallowing disorders. About the SLP credential

Other identifiers

Identifier	Type	State	Issuer
379871475B	Medicaid	GA	-
379871475C	Medicaid	GA	-

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

What is the NPI number for Marcus Maddox?

The National Provider Identifier (NPI) for Marcus Maddox is 1083692552, a Type 1 (individual) record in the CMS NPPES registry.

Where does Marcus Maddox practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-01-30.