Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

WILLIAM LLOYD DUNCAN M.D.
NPI 1477533685
Specialist in Martin, TN

Q: What is William Duncan's NPI number?

The NPI number for William Duncan is 1477533685. It was assigned to this individual provider in the NPPES registry on January 23, 2006.

Q: What is William Duncan's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Q: When was this NPI record last updated?

The NPPES record for William Duncan was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since January 23, 2006

300 W PEACH ST, MARTIN, TN 38237(731) 587-2525(731) 587-2555 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About William Lloyd Duncan M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM LLOYD DUNCAN M.D. (NPI 1477533685) is an individual specialist in Martin, Tennessee, licensed in Tennessee (3146) and active in the NPI registry since January 2006.

NPPES Registry Identity

NPI1477533685

Entity TypeIndividualMale

Primary Taxonomy174400000X

Provider Legal NameWILLIAM LLOYD DUNCANCredential: M.D.

Location Address300 W PEACH STMartin, TN 38237-3949

Mailing Address300 W Peach StMartin, TN 38237-3949 · (731) 587-2525 · Fax (731) 587-2555

Phone(731) 587-2525

Fax(731) 587-2555

Sole ProprietorNo

Enumeration DateJanuary 23, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1477533685 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers

Taxonomy Code174400000X

License✔ Licensed in TN · 3146

Definition

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

300 W PEACH ST, Martin, TN 38237

Open in Google Maps ↗

Other Identifiers 1

Medicaid3119139TN

Other Providers at the Same Location NPPES 9

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

VICTORIA CLAIRE HOOPER APRN

Nurse Practitioner (Family)