Individual provider Active NPI

John Truett Guthrie, PH.D.

  • Clinical Psychologist
  • Pasadena, CA
National Provider Identifier
1508109612
Registry record updated May 12, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical PsychologistTaxonomy code 103TC0700X
License
PSY28998 Issued in CA
Practice address
595 E Colorado Blvd Ste 632
Pasadena, CA 91101-2052
Phone
(626) 864-5925
NPI assigned
Mar 27, 2013
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 12, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Mental Health Counselor 101YM0800X PSY28998 CA
Clinical Psychologist 103TC0700X PSY28998 CA Primary

Addresses

Primary practice location

595 E Colorado Blvd Ste 632
Pasadena, CA 91101-2052

Mailing address

PO Box 60782
Pasadena, CA 91116-6782
Phone (626) 864-5925

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled
Credentials
Doctor of Philosophy

State licenses

LicenseStateTypeSpecialty
PSY28998CAMDMental Health Counselor

Practice roles

OrganizationSpecialtyStatusNew patients
Casa Colina Hospital and Centers for Healthcare Current Accepting new patients

Locations

255 E Bonita Ave
Pomona, CA 91767
Phone (866) 724-4127

Interoperability endpoints

  • Direct secure messaging: casacolina@direct.casacolina.org

Organizations & group practices 1

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1364342400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1747008000000",
    "number": "1508109612",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 60782",
            "city": "PASADENA",
            "state": "CA",
            "postal_code": "911166782",
            "telephone_number": "626-864-5925"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "595 E COLORADO BLVD STE 632",
            "city": "PASADENA",
            "state": "CA",
            "postal_code": "911012052",
            "telephone_number": "626-864-5925"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GUTHRIE",
        "first_name": "JOHN",
        "middle_name": "TRUETT",
        "name_prefix": "Dr.",
        "credential": "PH.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2013-03-27",
        "last_updated": "2025-05-12",
        "certification_date": "2025-05-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YM0800X",
            "taxonomy_group": "",
            "desc": "Counselor, Mental Health",
            "state": "CA",
            "license": "PSY28998",
            "primary": false
        },
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "CA",
            "license": "PSY28998",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Pasadena, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 12, 2025; 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.