Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Tammi M Williams, M.D.

Pediatrics Physician in Irving, TX · enumerated 2006.

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

National Provider Identifier

1972677193

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Registry record

Entity type Individual (Type 1)

Name Tammi M Williams

Credential M.D.

Sex Female

Practice address 6750 N Macarthur Blvd, Ste 206, Irving, TX, 75039

Phone (972) 253-4305

Fax (972) 253-6425

Enumeration date Nov 20, 2006

Last updated in NPPES Mar 2, 2017

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License L2055 (TX) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
143925901	Medicaid	TX	-

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

Is NPI 1972677193 active?

Yes, as of the latest NPPES snapshot, NPI 1972677193 is active (record last updated 2017-03-02).

How do I verify Tammi Williams's NPI record?

Cross-check NPI 1972677193 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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North Texas Perinatal Associates, P.A. Maternal & Fetal Medicine Physician · Irving, TX NPI 1265414932 Helen Hawkins Pediatric Nurse Practitioner · Irving, TX NPI 1245202126 Hien Pham Family Medicine Physician · Irving, TX NPI 1689647968 Veronica Villalba Obstetrics & Gynecology Physician · Irving, TX NPI 1679533855 Patricia Marroquin Obstetrics & Gynecology Physician · Irving, TX NPI 1962454744 Ann Wigodsky Clinical Psychologist · Irving, TX NPI 1730132168 Bryan Demarie Internal Medicine Physician · Irving, TX NPI 1225085822 Quynh Rathkamp Internal Medicine Physician · Irving, TX NPI 1780621219

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-02.