Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. George W Than, D.C.

Occupational Health Chiropractor in Diamond Bar, CA · enumerated 2006 · practices at Alireza Halati, MD Medical Corporation.

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

National Provider Identifier

1962512376

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Registry record

Entity type Individual (Type 1)

Name Dr. George W Than

Credential D.C.

Sex Male

Practice address Diamond Bar, CA, 91765

Phone (909) 860-3273

Fax (909) 860-7987

Enumeration date Aug 30, 2006

Last updated in NPPES Mar 24, 2022

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

Taxonomy & licenses

111NI0013X Independent Medical Examiner Chiropractor Chiropractic Providers · License 0172620 (CA) Secondary

111NX0100X Occupational Health Chiropractor Chiropractic Providers · License 17262 (CA) 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

How do I verify George Than's NPI record?

Cross-check NPI 1962512376 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1962512376 active?

Yes, as of the latest NPPES snapshot, NPI 1962512376 is active (record last updated 2022-03-24).

Other providers at this practice address

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Alireza Halati, MD Medical Corporation General Practice Physician · Diamond Bar, CA NPI 1750895694 Lucas Paredes Chiropractor · Diamond Bar, CA NPI 1215490263

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-03-24.