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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alan Lewis Williams, M.D.

Family Medicine Physician in Bethesda, MD · enumerated 2006.

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

National Provider Identifier

1346356607

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Registry record

Entity type Individual (Type 1)
Name Alan Lewis Williams
Credential M.D.
Sex Male
Practice address 4301 Jones Bridge Rd Dept of, Bethesda, MD, 20814
Phone (301) 400-4073
Enumeration date Aug 21, 2006
Last updated in NPPES Jul 23, 2024

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License D0060551 (MD) 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
15406 Other NV NEVADA STATE MEDICAL LICENSE
C53753 Other CA CA PHYSICIAN AND SURGEON LICENSE
M55181 Other MD STATE CDS
D0060551 Other MD STATE LICENSE

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 1346356607 active?
Yes, as of the latest NPPES snapshot, NPI 1346356607 is active (record last updated 2024-07-23).
How do I verify Alan Williams's NPI record?
Cross-check NPI 1346356607 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 2024-07-23.