Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Mark Russell, LCSW

Social Worker in Tupelo, MS · enumerated 2016.

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

National Provider Identifier

1477097392

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Registry record

Entity type Individual (Type 1)

Name Mr. Mark Russell

Credential LCSW

Sex Male

Practice address 302 S Spring St, Tupelo, MS, 38804

Phone (662) 840-8020

Fax (662) 840-8021

Enumeration date Dec 12, 2016

Last updated in NPPES Jun 28, 2021

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

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 specialty is Mark Russell?

Mark Russell is registered in NPPES with the primary taxonomy of Social Worker. 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 2021-06-28.