Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Martin Ray Mcwilliams, LPC

Mental Health Counselor in Windsor, MO · enumerated 2007.

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

National Provider Identifier

1912112939

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Registry record

Entity type Individual (Type 1)

Name Mr. Martin Ray Mcwilliams

Credential LPC

Sex Male

Practice address 307 N Main St, Windsor, MO, 65360

Phone (888) 403-1071

Fax (660) 647-3617

Enumeration date May 12, 2007

Last updated in NPPES May 20, 2020

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 2014000658 (MO) Primary

LPC — Licensed Professional Counselor: A licensed mental-health counselor providing psychotherapy. About the LPC 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 Martin Mcwilliams practice?

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

What is the NPI number for Martin Mcwilliams?

The National Provider Identifier (NPI) for Martin Mcwilliams is 1912112939, 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 2020-05-20.