Individual provider · Type 1 NPI

William Fiala, PhD

Psychologist · Costa Mesa, CA

NPI number 1336055896 Active

Practice location

1700 Adams Ave Ste 214
Costa Mesa, CA 92626-4865

Call (714) 957-1973 Map

Specialties and licenses

TaxonomyCodeLicense
Psychologist Primary 103T00000XPSY17213 (CA)

Psychologist: A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustmen…

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About NPI 1336055896

William Fiala, PhD's National Provider Identifier is 1336055896, issued on Aug 24, 2026. The primary taxonomy on file is Psychologist (103T00000X), and the practice location is in Costa Mesa, CA. The record was last updated on Aug 24, 2026.