NPI Portal NPI Lookup & Verification

Dr. Larry R Langdon, D.C.

Dr. Larry R Langdon is a Chiropractor provider (Chiropractor) practicing in San Pedro, CA, registered in the NPPES registry with NPI 1770518268 since 2006. The credential DC stands for Doctor of Chiropractic.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1770518268
Entity type Individual (Type 1)
Name Dr. Larry R Langdon
Credential D.C.
Sex Male
Practice address San Pedro, CA, 90731
Phone 3108331343
Fax 3108333044
Enumeration date 2006-07-12
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 10659 CA

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

Copy-ready billing details
Provider: Larry Langdon, D.C.
NPI: 1770518268
Taxonomy: 111N00000X (Chiropractor)
Address: San Pedro, CA, 90731

Verify this record

Cross-check NPI 1770518268 against the authoritative CMS record: view Dr. Larry R Langdon 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

How do I verify Larry Langdon's NPI record?
Cross-check NPI 1770518268 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1770518268 active?
Yes — as of the latest NPPES snapshot, NPI 1770518268 is active (record last updated 2007-07-08).

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