Leonard J Donk, PHD

Primary specialty

Clinical Child & Adolescent PsychologistTaxonomy code 103TC2200X

License

9064 Issued in CA

Practice address

20111 Stevens Creek Blvd
Suite 250
Cupertino, CA 95014-2399

Phone

(408) 366-9910

Fax

(408) 366-9915

NPI assigned

Apr 26, 2007

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 8

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Doctor of Philosophy

State licenses

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

{
    "created_epoch": "1177545600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1942420591",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "20111 STEVENS CREEK BLVD",
            "address_2": "SUITE 250",
            "city": "CUPERTINO",
            "state": "CA",
            "postal_code": "950142399",
            "telephone_number": "408-366-9910",
            "fax_number": "408-366-9915"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "20111 STEVENS CREEK BLVD",
            "address_2": "SUITE 250",
            "city": "CUPERTINO",
            "state": "CA",
            "postal_code": "950142399",
            "telephone_number": "408-366-9910",
            "fax_number": "408-366-9915"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DONK",
        "first_name": "LEONARD",
        "middle_name": "J",
        "name_prefix": "Dr.",
        "credential": "PHD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-04-26",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103T00000X",
            "taxonomy_group": "",
            "desc": "Psychologist",
            "state": "CA",
            "license": "9064",
            "primary": false
        },
        {
            "code": "103TB0200X",
            "taxonomy_group": "",
            "desc": "Psychologist, Cognitive & Behavioral",
            "state": "CA",
            "license": "9064",
            "primary": false
        },
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "CA",
            "license": "9064",
            "primary": false
        },
        {
            "code": "103TC1900X",
            "taxonomy_group": "",
            "desc": "Psychologist, Counseling",
            "state": "CA",
            "license": "9064",
            "primary": false
        },
        {
            "code": "103TC2200X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical Child & Adolescent",
            "state": "CA",
            "license": "9064",
            "primary": true
        },
        {
            "code": "103TF0200X",
            "taxonomy_group": "",
            "desc": "Psychologist, Forensic",
            "state": "CA",
            "license": "9064",
            "primary": false
        },
        {
            "code": "103TH0004X",
            "taxonomy_group": "",
            "desc": "Psychologist, Health",
            "state": "CA",
            "license": "9064",
            "primary": false
        },
        {
            "code": "103TP0814X",
            "taxonomy_group": "",
            "desc": "Psychologist, Psychoanalysis",
            "state": "CA",
            "license": "9064",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Clinical Child & Adolescent Psychologist in Cupertino, CA
• Providers in Cupertino, CA by specialty
• Clinical Child & Adolescent Psychologist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 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.