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Dr. Marian Yvette Williams-Brown, MD

Gynecologic Oncology Physician in Austin, TX · enumerated 2007.

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

National Provider Identifier

1861696460

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Registry record

Entity type Individual (Type 1)
Name Dr. Marian Yvette Williams-Brown
Credential MD
Sex Female
Practice address 1601 Trinity St Stop 804, Austin, TX, 78712
Phone (512) 324-7865
Enumeration date Jun 14, 2007
Last updated in NPPES Jan 15, 2025

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License N0554 (TX) Secondary
207VX0201X Gynecologic Oncology Physician Allopathic & Osteopathic Physicians · License N0554 (TX) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 do I verify Marian Williams-Brown's NPI record?
Cross-check NPI 1861696460 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1861696460 active?
Yes, as of the latest NPPES snapshot, NPI 1861696460 is active (record last updated 2025-01-15).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-01-15.