Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David Owen Clayton, M.D.

Psychiatry Physician in Fairfax, VA · enumerated 2006.

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

National Provider Identifier

1992866883

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Registry record

Entity type Individual (Type 1)

Name Dr. David Owen Clayton

Credential M.D.

Sex Male

Practice address 3959 Pender Dr, Suite 320, Fairfax, VA, 22030

Phone (703) 352-3822

Fax (703) 385-8353

Enumeration date Dec 13, 2006

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 0101233247 (VA) Primary

2084P0804X Child & Adolescent Psychiatry Physician Allopathic & Osteopathic Physicians · License 0101233247 (VA) Secondary

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

Is NPI 1992866883 active?

Yes, as of the latest NPPES snapshot, NPI 1992866883 is active (record last updated 2025-09-11).

How do I verify David Clayton's NPI record?

Cross-check NPI 1992866883 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 2025-09-11.