Marcia Dianne Landau, PHD

Primary specialty

Marriage & Family TherapistTaxonomy code 106H00000X

License

20182 Issued in CA

Practice address

23452 Justice St
West Hills, CA 91304-4403

Phone

(805) 857-2355

NPI assigned

Sep 21, 2026

Last updated

Sep 21, 2026By the provider in NPPES

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

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

{
    "created_epoch": "1789948800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1789948800000",
    "number": "1457263915",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "23452 JUSTICE ST",
            "city": "WEST HILLS",
            "state": "CA",
            "postal_code": "913044403",
            "telephone_number": "805-857-2355"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "23452 JUSTICE ST",
            "city": "WEST HILLS",
            "state": "CA",
            "postal_code": "913044403",
            "telephone_number": "805-857-2355"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LANDAU",
        "first_name": "MARCIA",
        "middle_name": "DIANNE",
        "credential": "PHD",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2026-09-21",
        "last_updated": "2026-09-21",
        "certification_date": "2026-09-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "106H00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Marriage & Family Therapist",
            "state": "CA",
            "license": "20182",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Land of Peace 2
• Land of Peace 3
• Land of Peace 4
• Land of Peace 5
• Land of Peace 6
• M Kiene Landry
• Gregg Mitchell Lane, D.M.D.
• Monica D. Lang, LMFT
• Rudolph Dean Lang, D.D.S.
• Deana K Langer, MA, CCCA

• Marriage & Family Therapist in West Hills, CA
• Providers in West Hills, CA by specialty
• Marriage & Family Therapist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 21, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.

Verify at the official NPI Registry.