Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Joan E Williams, D.P.M., M.S.

Podiatrist in Seattle, WA · enumerated 2006.

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

National Provider Identifier

1275643421

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Registry record

Entity type Individual (Type 1)

Name Joan E Williams

Credential D.P.M., M.S.

Sex Female

Practice address 1660 S Columbian Way, Seattle, WA, 98108

Phone (206) 762-1010

Enumeration date Aug 30, 2006

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

213E00000X Podiatrist Podiatric Medicine & Surgery Service Providers · License 0000359 (WA) Primary

213ES0103X Foot & Ankle Surgery Podiatrist Podiatric Medicine & Surgery Service Providers · License E-2836 A (CA) Secondary

DPM · Doctor of Podiatric Medicine: A physician specializing in medical and surgical care of the foot and ankle. About the DPM 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1275643421 active?

Yes, as of the latest NPPES snapshot, NPI 1275643421 is active (record last updated 2025-09-11).

How do I verify Joan Williams's NPI record?

Cross-check NPI 1275643421 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.