Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Diane Karen Johnson, PA

Medical Physician Assistant in Mt Vernon, TX · enumerated 2007 · practices at Premise Health of Texas Medical PA.

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

National Provider Identifier

1366643009

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Registry record

Entity type Individual (Type 1)

Name Diane Karen Johnson

Credential PA

Sex Female

Practice address 955 Lowes Ln, Mt Vernon, TX, 75457

Phone (903) 537-7558

Enumeration date May 30, 2007

Last updated in NPPES Mar 12, 2014

Taxonomy & licenses

363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA01150 (TX) Primary

PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA 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

Where does Diane Johnson practice?

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

What is the NPI number for Diane Johnson?

The National Provider Identifier (NPI) for Diane Johnson is 1366643009, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Premise Health of Texas Medical PA Clinic/Center · Mt Vernon, TX NPI 1558777854

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-03-12.