Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Jason Barker, DMD

Oral & Maxillofacial Surgery (D.M.D.) in Lexington, KY · enumerated 2006.

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

National Provider Identifier

1063420032

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Registry record

Entity type Individual (Type 1)

Name Dr. William Jason Barker

Credential DMD

Sex Male

Practice address 1401 Harrodsburg Rd, Suite B-395, Lexington, KY, 40504

Phone (859) 278-5377

Fax (859) 278-0903

Enumeration date Aug 4, 2006

Last updated in NPPES Aug 17, 2007

Taxonomy & licenses

1223S0112X Oral and Maxillofacial Surgery (Dentist) Dental Providers · License KY6088 (KY) Secondary

204E00000X Oral & Maxillofacial Surgery (D.M.D.) Allopathic & Osteopathic Physicians · License 6088 (KY) Primary

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

Other identifiers

Identifier	Type	State	Issuer
4578347	Other	-	AETNA DENTAL
503927	Other	-	UNITED CONCORDIA
000000108567	Other	-	BCBS
60060880	Other	KY	MEDICAID DENTAL
18162	Other	-	AETNA MEDICAL
64060882	Medicaid	KY	-

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

What specialty is William Barker?

William Barker is registered in NPPES with the primary taxonomy of Oral & Maxillofacial Surgery (D.M.D.). The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-08-17.