Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Williams, MS

Mental Health Counselor in Duncanville, TX · enumerated 2022.

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

National Provider Identifier

1750008033

Verified

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Registry record

Entity type Individual (Type 1)

Name Mary Williams

Credential MS

Sex Female

Practice address 1310 Cross Pointe Street, Duncanville, TX, 75137

Phone (907) 444-4526

Fax (844) 927-4589

Enumeration date Oct 26, 2022

Last updated in NPPES Oct 26, 2022

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers 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

Where does Mary Williams practice?

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

What is the NPI number for Mary Williams?

The National Provider Identifier (NPI) for Mary Williams is 1750008033, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-26.