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

Diana Dawn Mathis-Thornton

Professional Counselor in Lancaster, TX · enumerated 2018 · practices at Universal Couch Counseling Services.

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

National Provider Identifier

1558863381

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Registry record

Entity type Individual (Type 1)

Name Diana Dawn Mathis-Thornton

Sex Female

Practice address Lancaster, TX, 75146

Phone (214) 356-0990

Fax (972) 218-8076

Enumeration date Mar 7, 2018

Last updated in NPPES Mar 7, 2018

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

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 75644 (TX) 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.

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Frequently asked questions

Where does Diana Mathis-Thornton practice?

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

What is the NPI number for Diana Mathis-Thornton?

The National Provider Identifier (NPI) for Diana Mathis-Thornton is 1558863381, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Universal Couch Counseling Services Mental Health Counselor · Lancaster, TX NPI 1457854895

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-07.