Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark Alton Pierce Sr., D.C

Chiropractor in Jacksonville, FL · enumerated 2006.

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

National Provider Identifier

1962448209

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark Alton Pierce Sr.

Credential D.C

Sex Male

Practice address 12620 Beach Blvd, Suite 6, Jacksonville, FL, 32246

Phone (904) 645-0777

Fax (904) 645-3483

Enumeration date Jun 22, 2006

Last updated in NPPES Jul 30, 2015

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License CH6451 (FL) Primary

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

Other identifiers

Identifier	Type	State	Issuer
CH6451	Other	FL	CHIROPRACTIC PHYSICIAN #

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 Mark Pierce?

Mark Pierce 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 2015-07-30.