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

Mr. James Mashaun Williams, CSAC, LPC-IT, CSIT

Addiction (Substance Use Disorder) Counselor in Oshkosh, WI · enumerated 2009 · practices at Wc&C-Williams Counseling and Consultation.

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

National Provider Identifier

1295064558

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Registry record

Entity type Individual (Type 1)
Name Mr. James Mashaun Williams
Credential CSAC, LPC-IT, CSIT
Sex Male
Practice address Oshkosh, WI, 54901
Phone (920) 479-1087
Enumeration date Dec 16, 2009
Last updated in NPPES Nov 18, 2016

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

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 15549-132 (WI) Primary
101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 1515-226 (WI) Secondary

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.

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Frequently asked questions

What is the NPI number for James Williams?
The National Provider Identifier (NPI) for James Williams is 1295064558, a Type 1 (individual) record in the CMS NPPES registry.
Where does James Williams practice?
The practice location on file with NPPES is in Oshkosh, WI. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-11-18.