Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Adrianna Elyse Holness, PH.D.

Clinical Psychologist in Irvine, CA · enumerated 2020.

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

National Provider Identifier

1619508249

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Registry record

Entity type Individual (Type 1)

Name Dr. Adrianna Elyse Holness

Credential PH.D.

Sex Female

Practice address 19712 Macarthur Blvd Ste 110, Irvine, CA, 92612

Phone (949) 603-2526

Enumeration date Feb 2, 2020

Last updated in NPPES Nov 4, 2022

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 31501 (CA) Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY31501 (CA) 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 Adrianna Holness practice?

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

What is the NPI number for Adrianna Holness?

The National Provider Identifier (NPI) for Adrianna Holness is 1619508249, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-11-04.