Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Grace Kiriakos, PSY.D.

Psychologist in Fairfield, CA · enumerated 2013.

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

National Provider Identifier

1255766861

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Registry record

Entity type Individual (Type 1)

Name Grace Kiriakos

Credential PSY.D.

Sex Female

Practice address 604 Empire St Fl 1, Fairfield, CA, 94533

Phone (707) 862-3872

Enumeration date Sep 13, 2013

Last updated in NPPES Sep 15, 2019

Taxonomy & licenses

225C00000X Rehabilitation Counselor Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

103T00000X Psychologist Behavioral Health & Social Service Providers Primary

PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD 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 Grace Kiriakos practice?

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

What is the NPI number for Grace Kiriakos?

The National Provider Identifier (NPI) for Grace Kiriakos is 1255766861, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-09-15.