Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jan Susan Williams, MS LPC

Mental Health Counselor in Lake Havasu City, AZ · enumerated 2006.

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

National Provider Identifier

1619045598

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Registry record

Entity type Individual (Type 1)

Name Jan Susan Williams

Credential MS LPC

Sex Female

Practice address 276 S Lake Havasu Ave, #C32, Lake Havasu City, AZ, 86403

Phone (928) 505-1550

Fax (928) 505-1550

Enumeration date Dec 1, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License LPC2138 (AZ) Primary

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

How do I verify Jan Williams's NPI record?

Cross-check NPI 1619045598 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1619045598 active?

Yes, as of the latest NPPES snapshot, NPI 1619045598 is active (record last updated 2007-07-08).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.