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Margaret Lang-Williams, MD PA

Internal Medicine Physician in Port Arthur, TX · enumerated 2010 · authorized official Margaret Williams, President.

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

National Provider Identifier

1548592413

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Registry record

Entity type Organization (Type 2)
Legal business name Margaret Lang-Williams, MD PA
Practice address 2501 Jimmy Johnson Blvd, 502, Port Arthur, TX, 77640
Phone (409) 727-7342
Fax (409) 722-0958
Enumeration date Feb 3, 2010
Last updated in NPPES Feb 3, 2010

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License H1720 (TX) Primary

Authorized official

Name Margaret Williams
Title President
Phone (409) 727-7342

Other identifiers

Identifier Type State Issuer
H1720 Other TX TEXAS MEDICAL LIC
1255389847 Other TX INDIVIDUAL NPI

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

How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2010-02-03. Verify at npiregistry.cms.hhs.gov.
Where is Margaret Lang-Williams, MD PA located?
The practice location on file with NPPES is in Port Arthur, TX.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-02-03.