Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David S. Williams, DMD

General Practice Dentistry in Wilmington, DE · enumerated 2007.

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

National Provider Identifier

1538285457

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Registry record

Entity type Individual (Type 1)

Name Dr. David S. Williams

Credential DMD

Sex Male

Practice address 5317 Limestone Rd, Suite 101, Wilmington, DE, 19808

Phone (302) 239-5272

Fax (302) 239-6076

Enumeration date Mar 22, 2007

Last updated in NPPES Oct 30, 2013

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License G1-000080 (DE) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1538285457 active?

Yes, as of the latest NPPES snapshot, NPI 1538285457 is active (record last updated 2013-10-30).

How do I verify David Williams's NPI record?

Cross-check NPI 1538285457 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 2013-10-30.