Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kiersten Wilson Williams, MD

Obstetrics & Gynecology Physician in Castle Rock, CO · enumerated 2006.

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

National Provider Identifier

1710944731

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Registry record

Entity type Individual (Type 1)

Name Kiersten Wilson Williams

Credential MD

Sex Female

Practice address 2350 Meadows Blvd, Castle Rock, CO, 80109

Phone (720) 455-0350

Fax (720) 455-0351

Enumeration date Apr 26, 2006

Last updated in NPPES Aug 20, 2025

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License DR.40673 (CO) 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
200739380A	Medicaid	KS	-
1710944731	Medicaid	MT	-
10025711400	Medicaid	NE	-
76876331	Medicaid	CO	-
1710944731	Medicaid	WY	-

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Kiersten Williams?

Kiersten Williams is registered in NPPES with the primary taxonomy of Obstetrics & Gynecology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-20.