Landon Fern Marriott

Primary specialty

Social WorkerTaxonomy code 104100000X

Practice address

1255 Allston Way
Berkeley, CA 94702

Phone

(510) 845-9010

NPI assigned

Jul 10, 2017

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Practice roles

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.

• Berkeley Youth Alternatives

  • Community/Behavioral Health Agency
  • Berkeley, CA
  • NPI 1275724742
  NPD (past)
• Berkeley Youth Alternatives

  • Community/Behavioral Health Agency
  • Berkeley, CA
  • NPI 1689424731
  NPD (past)

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

{
    "created_epoch": "1499644800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771200000000",
    "number": "1104348200",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "515 3RD AVE",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981042304",
            "telephone_number": "510-320-7195"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1255 ALLSTON WAY",
            "city": "BERKELEY",
            "state": "CA",
            "postal_code": "94702",
            "telephone_number": "510-845-9010"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "515 3rd Ave",
            "address_purpose": "LOCATION",
            "city": "Seattle",
            "state": "WA",
            "postal_code": "981042304",
            "country_code": "US",
            "telephone_number": "510-320-7195",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MARRIOTT",
        "first_name": "LANDON",
        "middle_name": "FERN",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2017-07-10",
        "last_updated": "2026-02-16",
        "certification_date": "2026-02-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "WA",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jennine Marie Markiewicz, LMFT
• Henry Markman, M.D.
• Jess Maron
• Kirsten Marony
• Marquee Eyecare Center of Berkeley Inc
• Darcy Lynn Marrison, RN
• Georgine Marrott, PH.D.
• Elona Michele Marrus, MA, LMFT
• Catalily Ann Marshall, RN
• Mickey Marshall

• Social Worker in Berkeley, CA
• Providers in Berkeley, CA by specialty
• Social Worker in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 16, 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.