DR. WILLIAM LEE MASON MD
NPI 1104981737
Preventive Medicine - Public Health & General Preventive Medicine in Little Rock, AR

Q: What is William Mason's NPI number?

The NPI number for William Mason is 1104981737. It was assigned to this individual provider in the NPPES registry on December 26, 2006.

Q: What is William Mason's specialty?

The primary specialty registered for this NPI is Preventive Medicine, specializing in Public Health & General Preventive Medicine, with taxonomy code 2083P0901X.

Q: When was this NPI record last updated?

The NPPES record for William Mason was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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 December 26, 2006

POB 1437 SLOT H-61, ARKANSAS DEPT OF HEALTH, LITTLE ROCK, AR 72203(501) 280-4127(501) 280-4140 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. William Lee Mason Md NPPES

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

DR. WILLIAM LEE MASON MD (NPI 1104981737) is an individual public health & general preventive medicine provider in Little Rock, Arkansas, licensed in Arkansas (C-4212) and active in the NPI registry since December 2006.

NPPES Registry Identity

NPI1104981737

Entity TypeIndividualMale

Primary Taxonomy2083P0901X

Provider Legal NameDR. WILLIAM LEE MASONCredential: MD

Location AddressPOB 1437 SLOT H-61, ARKANSAS DEPT OF HEALTHLittle Rock, AR 72203-1437

Mailing Address5209 Edgewood RdLittle Rock, AR 72207-5413 · (501) 663-3902 · Fax (501) 280-4140

Phone(501) 280-4127

Fax(501) 280-4140

Sole ProprietorNo

Enumeration DateDecember 26, 2006

Last NPPES UpdateSeptember 11, 2025

✔ NPI 1104981737 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPreventive Medicine · Public Health & General Preventive MedicineAllopathic & Osteopathic Physicians

Taxonomy Code2083P0901X

License✔ Licensed in AR · C-4212

Definition

Public health and general preventive medicine focuses on promoting health, preventing disease, and managing the health of communities and defined populations. These practitioners combine population-based public health skills with knowledge of primary, secondary, and tertiary prevention-oriented clinical practice in a wide variety of settings.

Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License C-4212 (AR)

POB 1437 SLOT H-61, Little Rock, AR 72203

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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Mason's NPI number?

The NPI number for William Mason is 1104981737. It was assigned to this individual provider in the NPPES registry on December 26, 2006.

Where is William Mason located?

William Mason practices at Pob 1437 Slot H-61 Arkansas Dept Of Health, Little Rock, AR 72203. The listed phone number is (501) 280-4127.

What is William Mason's specialty?

The primary specialty registered for this NPI is Preventive Medicine, specializing in Public Health & General Preventive Medicine, with taxonomy code 2083P0901X.

When was this NPI record last updated?

The NPPES record for William Mason was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.