Trivium Delta Psychology Group Professional Corporation

Primary specialty

Mental Health Clinic/Center (Including Community Mental Health Center)Taxonomy code 261QM0801X

Legal business name

TRIVIUM DELTA PSYCHOLOGY GROUP PROFESSIONAL CORPORATION

Practice address

65 N Raymond Ave Ste 330
Pasadena, CA 91103-3947

Phone

(626) 208-9426

NPI assigned

May 30, 2025

Organization subpart

No

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

Authorized official

Name

Dr. Brianna Staley Shumaker, PHD, ABPPNPI 1336548270

Title

Ceo/Owner

Phone

(626) 208-9426

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in CA

Enrollment records 1

Locations

Practitioners 1

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

• Brianna Staley Shumaker, PHD

  • Clinical Psychologist
  • Pasadena, CA
  • NPI 1336548270
  Medicare reassignment NPD Authorized official

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

{
    "created_epoch": "1748563200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1765584000000",
    "number": "1497648232",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "65 N RAYMOND AVE STE 330",
            "city": "PASADENA",
            "state": "CA",
            "postal_code": "911033947"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "65 N RAYMOND AVE STE 330",
            "city": "PASADENA",
            "state": "CA",
            "postal_code": "911033947",
            "telephone_number": "626-208-9426"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "TRIVIUM DELTA PSYCHOLOGY GROUP PROFESSIONAL CORPORATION",
        "organizational_subpart": "NO",
        "enumeration_date": "2025-05-30",
        "last_updated": "2025-12-13",
        "certification_date": "2025-12-13",
        "status": "A",
        "authorized_official_last_name": "STALEY SHUMAKER",
        "authorized_official_first_name": "BRIANNA",
        "authorized_official_title_or_position": "CEO/OWNER",
        "authorized_official_telephone_number": "626-208-9426",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "PHD, ABPP"
    },
    "taxonomies": [
        {
            "code": "261QM0801X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Mental Health (Including Community Mental Health Center)",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Sidney Ellen Trinh, AMFT
• Kenny B Trinidad, PAC
• Sef Rachel Tritt, ND
• Stephany Tritt, PT
• Juanita Ester Trivino, LMFT
• Jeffrey Trochez
• Melissa Trochez, LMFT
• Kaitlyn Lindsey Trotter
• Anna Trtchounian, MD
• Kathryn Grace Truitt, PH.D.

• Mental Health Clinic/Center (Including Community Mental Health Center) in Pasadena, CA
• Providers in Pasadena, CA by specialty
• Mental Health Clinic/Center (Including Community Mental Health Center) in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 13, 2025; 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.