Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Nathan David Williamson, D.M.D.

General Practice Dentistry in Festus, MO · enumerated 2008.

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

National Provider Identifier

1871741454

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Registry record

Entity type Individual (Type 1)

Name Dr. Nathan David Williamson

Credential D.M.D.

Sex Male

Practice address 606 S Truman Blvd, Festus, MO, 63028

Phone (636) 937-3870

Fax (636) 937-9241

Enumeration date Sep 8, 2008

Last updated in NPPES Dec 21, 2021

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 019-027747 (IL) Secondary

1223G0001X General Practice Dentistry Dental Providers · License 2013025512 (MO) 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.

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Frequently asked questions

How do I verify Nathan Williamson's NPI record?

Cross-check NPI 1871741454 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1871741454 active?

Yes, as of the latest NPPES snapshot, NPI 1871741454 is active (record last updated 2021-12-21).

Other providers at this practice address

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John F. Empkey,D.D.S.,P.C General Practice Dentistry · Festus, MO NPI 1366532772 Nathan D. Williamson, D.M.D., LLC Dental Clinic/Center · Festus, MO NPI 1932716610

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-21.