Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Ml Williams LLC

Q: What is the NPI number for Ml Williams LLC?

The NPI for Ml Williams LLC is 1659723450, a Type 2 (organization) record in the CMS NPPES registry.

Community/Behavioral Health Agency in Lake Charles, LA · enumerated 2016 · authorized official Marilyn Williams, Licensed Professional Counselor.

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

National Provider Identifier

1659723450

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Registry record

Entity type Organization (Type 2)

Legal business name Ml Williams LLC

Practice address 900 Ryan St, Suite 405, Lake Charles, LA, 70601

Phone (337) 990-5308

Fax (337) 990-5314

Enumeration date Jul 6, 2016

Last updated in NPPES Jul 6, 2016

Taxonomy & classification

251S00000X Community/Behavioral Health Agency Agencies · License 4611 (LA) Primary

Authorized official

Name Marilyn Williams

Title Licensed Professional Counselor

Phone (337) 990-5308

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

What is the NPI number for Ml Williams LLC?

The NPI for Ml Williams LLC is 1659723450, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Ml Williams LLC?

NPPES lists Marilyn Williams (Licensed Professional Counselor) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-07-06.