Ashton Harris Hallahan, LCSW, MPH, CCM

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

Practice address

2300 E 7TH St
National City, CA 91950-2852

Phone

(619) 791-2730

NPI assigned

Sep 4, 2018

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other names 1

• Elizabeth Ashton Harris Former name

Medicare fee-for-service enrollment

Enrolled in CA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: No
• Power mobility devices: No
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

State licenses

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.

• Sharp Rees-Stealy Medical Group, Inc

  • Internal Medicine Physician
  • San Diego, CA
  • NPI 1285616177

  CA

  Medicare reassignment

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

{
    "created_epoch": "1536019200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773705600000",
    "number": "1285116558",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5651 COPLEY DR STE A",
            "city": "SAN DIEGO",
            "state": "CA",
            "postal_code": "921117903",
            "telephone_number": "858-262-6095"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2300 E 7TH ST",
            "city": "NATIONAL CITY",
            "state": "CA",
            "postal_code": "919502852",
            "telephone_number": "619-791-2730"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HALLAHAN",
        "first_name": "ASHTON",
        "middle_name": "HARRIS",
        "credential": "LCSW, MPH, CCM",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-09-04",
        "last_updated": "2026-03-17",
        "certification_date": "2026-03-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "ELIZABETH",
            "last_name": "HARRIS",
            "middle_name": "ASHTON",
            "credential": "LCSW, MPH, CCM",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Olga Saldivar Gutierrez
• Guttikonda, Inc.
• Rakhesh Guttikonda, D.O.
• Barbara P Guzman-Marasigan, D.D.S.
• Dorothy E. Hairston, M.D.
• Sultana Noori Hamrang, M.D.
• Alex K Han, M.D.
• Hanani 1 Hospice
• Zahida S Haque, MD
• Elmer Wilbert Harder, M.D.

• All providers in National City, CA
• Clinical Social Worker in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 17, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.