Growthbound Psychological Services, PC

Primary specialty

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

Legal business name

GROWTHBOUND PSYCHOLOGICAL SERVICES, PC

Practice address

35 E Union St Ste D
Pasadena, CA 91103-3945

Phone

(626) 578-5585

NPI assigned

Aug 19, 2024

Organization subpart

No

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

Authorized official

Name

Dr. Ryan Thomas, PHDNPI 1679821433

Title

President

Phone

(626) 578-5585

Specialties & licenses 1

Addresses

Locations

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

• Ryan Thomas, PH.D.

  • Clinical Psychologist
  • Pasadena, CA
  • NPI 1679821433
  NPD Authorized official

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

{
    "created_epoch": "1724025600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1789689600000",
    "number": "1568294205",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "35 E UNION ST STE D",
            "city": "PASADENA",
            "state": "CA",
            "postal_code": "911033945",
            "telephone_number": "626-578-5585"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "35 E UNION ST STE D",
            "city": "PASADENA",
            "state": "CA",
            "postal_code": "911033945",
            "telephone_number": "626-578-5585"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "GROWTHBOUND PSYCHOLOGICAL SERVICES, PC",
        "organizational_subpart": "NO",
        "enumeration_date": "2024-08-19",
        "last_updated": "2026-09-18",
        "certification_date": "2026-09-18",
        "status": "A",
        "authorized_official_last_name": "THOMAS",
        "authorized_official_first_name": "RYAN",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "626-578-5585",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "PHD"
    },
    "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": []
}

• Katlyn Ruth Grossnickle, PT, DPT
• Arianne Groth, LMFT
• Grove RX Inc (Grove Pharmacy)
• Grove RX Inc (Grove Pharmacy)
• Julia Grover
• Lee Alan Grund, DDS
• GT Ambulance Inc
• Tiffany Gu, OTR/L
• Janny Arlim Guadarrama
• Diana Guadian

• 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 Sep 18, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.