Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William Blanc Duncan Jr.

Chiropractor in Shreveport, LA · enumerated 2018 · practices at Duncan Sport & Spine LLC.

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

National Provider Identifier

1326546946

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Registry record

Entity type Individual (Type 1)

Name William Blanc Duncan Jr.

Sex Male

Practice address 611 Absinthe Ct Ste A, Shreveport, LA, 71115

Phone (318) 562-3332

Enumeration date Jan 29, 2018

Last updated in NPPES Feb 17, 2026

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 1817 (LA) Primary

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 William Duncan's NPI record?

Cross-check NPI 1326546946 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1326546946 active?

Yes, as of the latest NPPES snapshot, NPI 1326546946 is active (record last updated 2026-02-17).

Other providers at this practice address

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Alisha Timon Registered Nurse · Shreveport, LA NPI 1669152807 Duncan Sport & Spine LLC Chiropractor · Shreveport, LA NPI 1063375103

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-17.