Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

YOANNA ISHAK PSYD
NPI 1720653892
Psychologist in Orange, CA

Active since May 21, 2021
1201 W LA VETA AVE, ORANGE, CA 92868(714) 997-3000 Get Directions Write a Review

NPPES record last updated: July 22, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 22, 2026, May 21, 2021 (2 updates tracked since 2021).

About Yoanna Ishak Psyd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

YOANNA ISHAK PSYD (NPI 1720653892) is an individual psychologist in Orange, California and active in the NPI registry since May 2021.

NPPES Registry Identity

NPI1720653892
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameYOANNA ISHAKCredential: PSYD
Location Address1201 W LA VETA AVEOrange, CA 92868-4203
Mailing Address1201 W La Veta AveOrange, CA 92868-4203 · (714) 997-3000
Sole ProprietorNo
Enumeration DateMay 21, 2021
Last NPPES UpdateJuly 22, 20262 updates tracked since enumeration
NPPES CertifiedJuly 22, 2026
NPI 1720653892 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
Definition
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 adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
1201 W LA VETA AVE, Orange, CA 92868

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Social Worker
1201 W LA VETA AVE
ORANGE, CA 92868
Neurological Surgery
1201 W LA VETA AVE
ORANGE, CA 92868
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
1201 W LA VETA AVE
ORANGE, CA 92868
Pediatrics (Pediatric Hematology-Oncology)
1201 W LA VETA AVE
ORANGE, CA 92868
Student in an Organized Health Care Education/Training Program
1201 W LA VETA AVE
ORANGE, CA 92868
Psychologist (Clinical Child & Adolescent)
1201 W LA VETA AVE, 503
ORANGE, CA 92868
Pediatrics (Pediatric Endocrinology)
1201 W LA VETA AVE
ORANGE, CA 92868
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
1201 W LA VETA AVE, CHILDREN'S HOSPITAL OF ORANGE COUNTY, NEUROLOGY
ORANGE, CA 92868

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Yoanna Ishak's NPI number?

The NPI number for Yoanna Ishak is 1720653892. It was assigned to this individual provider in the NPPES registry on May 21, 2021.

Where is Yoanna Ishak located?

Yoanna Ishak practices at 1201 W La Veta Ave, Orange, CA 92868. The listed phone number is (714) 997-3000.

What is Yoanna Ishak's specialty?

The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.

When was this NPI record last updated?

The NPPES record for Yoanna Ishak was last updated on July 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 29 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.