Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. John R Willoughby, DDS, PHD

General Practice Dentistry in Yorktown, VA · enumerated 2008.

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

National Provider Identifier

1245487453

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Registry record

Entity type Individual (Type 1)

Name Dr. John R Willoughby

Credential DDS, PHD

Sex Male

Practice address Yorktown, VA, 23692

Phone (540) 867-0174

Enumeration date Aug 20, 2008

Last updated in NPPES Jan 12, 2010

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 049-23517 (OH) Secondary

1223G0001X General Practice Dentistry Dental Providers · License 0401412434 (VA) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Other identifiers

Identifier	Type	State	Issuer
0401412434	Other	VA	DENTAL LICENSE # --- VIRGINIA

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

Where does John Willoughby practice?

The practice location on file with NPPES is in Yorktown, VA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for John Willoughby?

The National Provider Identifier (NPI) for John Willoughby is 1245487453, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-01-12.