Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Melissa Celia Dillon, PH.D.

Clinical Psychologist in Irving, TX · enumerated 2018.

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

National Provider Identifier

1265903363

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Registry record

Entity type Individual (Type 1)

Name Dr. Melissa Celia Dillon

Credential PH.D.

Sex Female

Practice address 7701 Las Colinas Rdg Ste 110, Irving, TX, 75063

Phone (214) 574-7848

Fax (214) 496-0346

Enumeration date Dec 16, 2018

Last updated in NPPES Dec 16, 2018

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 31523 (TX) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD 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 Melissa Dillon practice?

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

What is the NPI number for Melissa Dillon?

The National Provider Identifier (NPI) for Melissa Dillon is 1265903363, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-12-16.