Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Mark Mcalister, LMSW

Social Worker in Texarkana, AR · enumerated 2010.

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

National Provider Identifier

1104132406

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Registry record

Entity type Individual (Type 1)

Name Mr. Mark Mcalister

Credential LMSW

Sex Male

Practice address 2904 Arkansas Blvd, Texarkana, AR, 71854

Phone (870) 773-4655

Fax (870) 772-4650

Enumeration date Aug 24, 2010

Last updated in NPPES Dec 2, 2015

Taxonomy & licenses

104100000X Social Worker 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.

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Frequently asked questions

How do I verify Mark Mcalister's NPI record?

Cross-check NPI 1104132406 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1104132406 active?

Yes, as of the latest NPPES snapshot, NPI 1104132406 is active (record last updated 2015-12-02).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-12-02.