NPI Portal NPI Lookup & Verification

Mark A Campbell, DC

Mark A Campbell is a Chiropractor provider (Chiropractor) practicing in Fremont, CA, registered in the NPPES registry with NPI 1851469902 since 2006. The credential DC stands for Doctor of Chiropractic.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1851469902
Entity type Individual (Type 1)
Name Mark A Campbell
Credential DC
Sex Male
Practice address Fremont, CA, 94536
Phone 5107910353
Fax 5107910350
Enumeration date 2006-11-30
Last updated in NPPES 2007-07-08

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

Taxonomy & licenses

Taxonomy code Specialty Primary License State
111N00000X Chiropractor Primary DC 29307 CA

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

Copy-ready billing details
Provider: Mark Campbell, DC
NPI: 1851469902
Taxonomy: 111N00000X (Chiropractor)
Address: Fremont, CA, 94536

Other providers at this practice address

NPI Name Type Specialty Location
1114095197 Zaid Atazai Individual Chiropractor Fremont, CA

Verify this record

Cross-check NPI 1851469902 against the authoritative CMS record: view Mark A Campbell on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

What specialty is Mark Campbell?
Mark Campbell 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.
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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.