Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Brian Lee Marek, D.C.

Chiropractor in Dallas, TX · enumerated 2011.

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

National Provider Identifier

1003101593

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Registry record

Entity type Individual (Type 1)

Name Dr. Brian Lee Marek

Credential D.C.

Sex Male

Practice address 4801 S Buckner Blvd, 200, Dallas, TX, 75227

Phone (214) 381-7700

Fax (214) 381-5510

Enumeration date Jun 13, 2011

Last updated in NPPES Jun 14, 2013

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 4738-012 (WI) Secondary

111N00000X Chiropractor Chiropractic Providers · License 038011967 (IL) Secondary

111N00000X Chiropractor Chiropractic Providers · License 12363 (TX) Primary

DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC 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.

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Frequently asked questions

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.

What specialty is Brian Marek?

Brian Marek is registered in NPPES with the primary taxonomy of Chiropractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-06-14.