Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Williams Medical Group, PA

Q: What is the NPI number for Williams Medical Group, PA?

The NPI for Williams Medical Group, PA is 1225144942, a Type 2 (organization) record in the CMS NPPES registry.

Family Medicine Physician in Cedar Hill, TX · enumerated 2006 · authorized official J. Williams, Medical Director.

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

National Provider Identifier

1225144942

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Registry record

Entity type Organization (Type 2)

Legal business name Williams Medical Group, PA

Practice address 223 E Fm 1382, Suite 115, Cedar Hill, TX, 75104

Phone (972) 293-9422

Fax (972) 293-9048

Enumeration date Aug 23, 2006

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License L3874 (TX) Primary

Authorized official

Name J. Williams

Title Medical Director

Phone (972) 293-9422

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 Williams Medical Group, PA?

The NPI for Williams Medical Group, PA is 1225144942, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Williams Medical Group, PA?

NPPES lists J. Williams (Medical Director) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.