NPI Portal NPI Lookup & Verification

Dr. Brian Joseph Declerk, D.C.

Dr. Brian Joseph Declerk is a Chiropractor provider (Chiropractor) practicing in Oceanside, CA, registered in the NPPES registry with NPI 1598857013 since 2006. The credential DC stands for Doctor of Chiropractic.

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NPI 1598857013
Entity type Individual (Type 1)
Name Dr. Brian Joseph Declerk
Credential D.C.
Sex Male
Practice address 3529 CANNON RD STE 2E, Oceanside, CA, 92056
Phone 7606318000
Fax 7606318099
Enumeration date 2006-09-29
Last updated in NPPES 2007-07-08

Taxonomy & licenses

Taxonomy code Specialty Primary License State
111N00000X Chiropractor Primary DC17664 CA

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

Other identifiers

Identifier Type State Issuer
931150 Other CA QME
Copy-ready billing details
Provider: Brian Declerk, D.C.
NPI: 1598857013
Taxonomy: 111N00000X (Chiropractor)
Address: 3529 CANNON RD STE 2E, Oceanside, CA, 92056

Verify this record

Cross-check NPI 1598857013 against the authoritative CMS record: view Dr. Brian Joseph Declerk 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

Is NPI 1598857013 active?
Yes — as of the latest NPPES snapshot, NPI 1598857013 is active (record last updated 2007-07-08).
How do I verify Brian Declerk's NPI record?
Cross-check NPI 1598857013 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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