Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Archibald W Houser, M.D.

Internal Medicine Physician in Winchester, VA · enumerated 2006.

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

National Provider Identifier

1851352025

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Registry record

Entity type Individual (Type 1)

Name Archibald W Houser

Credential M.D.

Sex Male

Practice address 212 Linden Dr, Suite 152, Winchester, VA, 22601

Phone (540) 667-0744

Fax (540) 665-8158

Enumeration date Mar 29, 2006

Last updated in NPPES Feb 28, 2021

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 0101226516 (VA) 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
5842921	Medicaid	VA	-
110209330	Other	-	RAILROAD MEDICARE

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 1851352025 active?

Yes, as of the latest NPPES snapshot, NPI 1851352025 is active (record last updated 2021-02-28).

How do I verify Archibald Houser's NPI record?

Cross-check NPI 1851352025 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-02-28.