Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Joan Elise Barton, PA-C

Physician Assistant in Mckinney, TX · enumerated 2007.

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

National Provider Identifier

1225246101

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Registry record

Entity type Individual (Type 1)

Name Mrs. Joan Elise Barton

Credential PA-C

Sex Female

Practice address 8080 State Highway 121, Suite 120, Mckinney, TX, 75070

Phone (214) 383-5955

Fax (214) 383-5966

Enumeration date May 21, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA05135 (TX) Primary

Other identifiers

Identifier	Type	State	Issuer
PA05135	Other	TX	LICENSE NUMBER (PA)

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 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.

What specialty is Joan Barton?

Joan Barton is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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