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

Dr. Kenneth Michael Mcwilliams, NMD

Naturopath in Chandler, AZ · enumerated 2007.

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

National Provider Identifier

1891819421

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Registry record

Entity type Individual (Type 1)

Name Dr. Kenneth Michael Mcwilliams

Credential NMD

Sex Male

Practice address Chandler, AZ, 85248

Phone (480) 802-6617

Fax (480) 802-5711

Enumeration date Mar 19, 2007

Last updated in NPPES Jul 6, 2018

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

Taxonomy & licenses

175F00000X Naturopath Other Service Providers · License 06-934 (AZ) Primary

Other identifiers

Identifier	Type	State	Issuer
381701	Medicaid	AZ	-

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 1891819421 active?

Yes, as of the latest NPPES snapshot, NPI 1891819421 is active (record last updated 2018-07-06).

How do I verify Kenneth Mcwilliams's NPI record?

Cross-check NPI 1891819421 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 2018-07-06.