Organization Active NPI

Thomas C. Olona, Psychologist, Professional Corporation

  • Psychologist
  • Glendale, CA
National Provider Identifier
1871867614
Registry record updated Apr 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
PsychologistTaxonomy code 103T00000X
License
PSY14944 Issued in CA
Legal business name
THOMAS C. OLONA, PSYCHOLOGIST, PROFESSIONAL CORPORATION
Practice address
100 N Brand Blvd
Suite 603
Glendale, CA 91203-2641
Phone
(818) 476-1007
NPI assigned
Feb 25, 2012
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Apr 13, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name
Dr. Thomas Christopher Olona, PH.D.NPI 1164516886
Title
Psychologist/President
Phone
(818) 476-0117

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
PsychologistGroup: 193400000X SINGLE SPECIALTY GROUP 103T00000X PSY14944 CA Primary

Addresses

Primary practice location

100 N Brand Blvd
Suite 603
Glendale, CA 91203-2641

Mailing address

100 N Brand Blvd Ste 603
Glendale, CA 91203-2641
Phone (818) 476-0117

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20121219000286 CA Part B Supplier - Clinic/Group Practice 4880846989 Receives reassigned benefits from 1 practitioner
Practice locations: Glendale, CA

National Provider Directory

National Provider Directory

Locations

100 N Brand Blvd
Ste 603
Glendale, CA 91203
Phone (818) 476-0117

Practitioners & affiliated clinicians

Practitioners 2

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1330128000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1776038400000",
    "number": "1871867614",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "100 N BRAND BLVD STE 603",
            "city": "GLENDALE",
            "state": "CA",
            "postal_code": "912032641",
            "telephone_number": "818-476-0117"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 N BRAND BLVD",
            "address_2": "SUITE 603",
            "city": "GLENDALE",
            "state": "CA",
            "postal_code": "912032641",
            "telephone_number": "818-476-1007"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "THOMAS C. OLONA, PSYCHOLOGIST, PROFESSIONAL CORPORATION",
        "organizational_subpart": "NO",
        "enumeration_date": "2012-02-25",
        "last_updated": "2026-04-13",
        "certification_date": "2026-04-13",
        "status": "A",
        "authorized_official_last_name": "OLONA",
        "authorized_official_first_name": "THOMAS",
        "authorized_official_middle_name": "CHRISTOPHER",
        "authorized_official_title_or_position": "PSYCHOLOGIST/PRESIDENT",
        "authorized_official_telephone_number": "818-476-0117",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "PH.D."
    },
    "taxonomies": [
        {
            "code": "103T00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Psychologist",
            "state": "CA",
            "license": "PSY14944",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Glendale, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.