Margaret Mary Slaven, PSY.D.

Primary specialty

Clinical PsychologistTaxonomy code 103TC0700X

License

PSY19346 Issued in CA

Practice address

1400 N Harbor Blvd
Suite 440
Fullerton, CA 92835-4126

Phone

(714) 681-9070

Fax

(714) 773-4788

NPI assigned

Nov 21, 2006

Sex

Female

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

State licenses

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

{
    "created_epoch": "1164067200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1477628923",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1400 N HARBOR BLVD",
            "address_2": "SUITE 440",
            "city": "FULLERTON",
            "state": "CA",
            "postal_code": "928354126",
            "telephone_number": "714-681-9070",
            "fax_number": "714-773-4788"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1400 N HARBOR BLVD",
            "address_2": "SUITE 440",
            "city": "FULLERTON",
            "state": "CA",
            "postal_code": "928354126",
            "telephone_number": "714-681-9070",
            "fax_number": "714-773-4788"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SLAVEN",
        "first_name": "MARGARET",
        "middle_name": "MARY",
        "credential": "PSY.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-11-21",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103G00000X",
            "taxonomy_group": "",
            "desc": "Clinical Neuropsychologist",
            "state": "CA",
            "license": "PSY19346",
            "primary": false
        },
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "CA",
            "license": "PSY19346",
            "primary": true
        },
        {
            "code": "103TR0400X",
            "taxonomy_group": "",
            "desc": "Psychologist, Rehabilitation",
            "state": "CA",
            "license": "PSY19346",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Arlene Elizabeth Slusher
• Lauren Michelle Small, BA

• Clinical Psychologist in Fullerton, CA
• Providers in Fullerton, CA by specialty
• Clinical 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.