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

Mrs. Chelan Marie Williams, MSN FNP

General Practice Registered Nurse in Mcallen, TX · enumerated 2011.

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

National Provider Identifier

1093004145

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Registry record

Entity type Individual (Type 1)

Name Mrs. Chelan Marie Williams

Credential MSN FNP

Sex Female

Practice address Mcallen, TX, 78504

Phone (956) 867-7877

Fax (956) 630-1363

Enumeration date Mar 29, 2011

Last updated in NPPES Mar 29, 2011

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

Taxonomy & licenses

163WG0000X General Practice Registered Nurse Nursing Service Providers · License 591565 (TX) Primary

163WH1000X Hospice Registered Nurse Nursing Service Providers · License 591565 (TX) Secondary

163WP0000X Pain Management Registered Nurse Nursing Service Providers · License 591565 (TX) Secondary

163WX0200X Oncology Registered Nurse Nursing Service Providers · License 591565 (TX) Secondary

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 1093004145 active?

Yes, as of the latest NPPES snapshot, NPI 1093004145 is active (record last updated 2011-03-29).

How do I verify Chelan Williams's NPI record?

Cross-check NPI 1093004145 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-03-29.