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

Ms. Ellen Beth Williams, L.AC.

Acupuncturist in Windsor, CO · enumerated 2008.

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

National Provider Identifier

1134397243

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Registry record

Entity type Individual (Type 1)

Name Ms. Ellen Beth Williams

Credential L.AC.

Sex Female

Practice address Windsor, CO, 80550

Phone (970) 213-6331

Fax (970) 460-0840

Enumeration date Feb 12, 2008

Last updated in NPPES Jul 21, 2013

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

Taxonomy & licenses

171100000X Acupuncturist Other Service Providers · License 1221 (CO) Primary

LAC · Licensed Acupuncturist: A practitioner licensed to perform acupuncture. About the LAC 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

Where does Ellen Williams practice?

The practice location on file with NPPES is in Windsor, CO. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Ellen Williams?

The National Provider Identifier (NPI) for Ellen Williams is 1134397243, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-07-21.