Rebecca Ashley Lofthouse, LCSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

Practice address

220 Sansome St Ste 400
San Francisco, CA 94104-2717

Phone

(415) 202-5159

NPI assigned

Sep 11, 2013

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

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

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.

Specialty

Clinical Social Worker

Education

Other, 2017

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

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

{
    "created_epoch": "1378857600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781740800000",
    "number": "1770918591",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2678 NE LINDSEY DR",
            "city": "HILLSBORO",
            "state": "OR",
            "postal_code": "971244122",
            "telephone_number": "310-977-7239"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "220 SANSOME ST STE 400",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941042717",
            "telephone_number": "415-202-5159"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LOFTHOUSE",
        "first_name": "REBECCA",
        "middle_name": "ASHLEY",
        "name_prefix": "Ms.",
        "credential": "LCSW",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2013-09-11",
        "last_updated": "2026-06-18",
        "certification_date": "2026-06-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Era A Loewenstein, PH.D.
• Shevi Loewinger, LMFT
• Rachel Loewy, PH.D.
• Frederica S. Lofquist, M.D.
• Jillian Lofrese
• Eve Lofthus
• Lauren Ashton Loftis, PA-C
• Lofton Consulting, Inc.
• David Lofton
• Derrick Robert Lofton

• Clinical Social Worker in San Francisco, CA
• Providers in San Francisco, CA by specialty
• Clinical Social Worker in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 18, 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.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.