THOMAS C. OLONA, PSYCHOLOGIST, PROFESSIONAL CORPORATION
NPI 1871867614
Psychologist in Glendale, CA

Active since February 25, 2012
100 N BRAND BLVD, SUITE 603, GLENDALE, CA 91203(818) 476-1007 Get Directions Write a Review

NPPES record last updated: April 13, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Thomas C. Olona, Psychologist, Professional Corporation NPPES

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

THOMAS C. OLONA, PSYCHOLOGIST, PROFESSIONAL CORPORATION (NPI 1871867614) is a healthcare organization registered as a psychologist in Glendale, California and active in the NPI registry since February 2012. The organization lists Thomas Christopher Olona, Psychologist/president, as its authorized official.

NPPES Registry Identity

NPI1871867614
Entity TypeOrganization
Primary Taxonomy103T00000X
Legal Business NameTHOMAS C. OLONA, PSYCHOLOGIST, PROFESSIONAL CORPORATION
Location Address100 N BRAND BLVD, SUITE 603Glendale, CA 91203-2641
Mailing Address100 N Brand Blvd Ste 603Glendale, CA 91203-2641 · (818) 476-0117
Organization SubpartNo
Authorized OfficialThomas Christopher OlonaPsychologist/president · (818) 476-0117
Enumeration DateFebruary 25, 2012
Last NPPES UpdateApril 13, 2026
NPPES CertifiedApril 13, 2026
✔ NPI 1871867614 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License✔ Licensed in CA · PSY14944
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.
100 N BRAND BLVD, Glendale, CA 91203

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Thomas C. Olona, Psychologist, Professional Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Thomas C. Olona, Psychologist, Professional Corporation, which bills Medicare for the services this clinician delivers.

Clinician (1)

Clinical Psychologist
NPI 1164516886
100 N BRAND BLVD SUITE 603
Glendale, CA 91203
(818) 476-0117
✔ PECOSSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Thomas C. Olona, Psychologist, Professional Corporation's NPI number?

The NPI number for Thomas C. Olona, Psychologist, Professional Corporation is 1871867614. It was assigned to this organization in the NPPES registry on February 25, 2012.

Where is Thomas C. Olona, Psychologist, Professional Corporation located?

Thomas C. Olona, Psychologist, Professional Corporation is located at 100 N Brand Blvd Suite 603, Glendale, CA 91203. The listed phone number is (818) 476-1007.

What is Thomas C. Olona, Psychologist, Professional Corporation's specialty?

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

Is Thomas C. Olona, Psychologist, Professional Corporation enrolled in Medicare?

Yes. Thomas C. Olona, Psychologist, Professional Corporation is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Thomas C. Olona, Psychologist, Professional Corporation?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Psychologist) reassigns their Medicare billing to Thomas C. Olona, Psychologist, Professional Corporation. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Thomas C. Olona, Psychologist, Professional Corporation was last updated on April 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months 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.