Reuben Jack Kessler, ACSW

Primary specialty

Social WorkerTaxonomy code 104100000X

Practice address

671 Harrison St
San Francisco, CA 94107-1312

Phone

(415) 281-5100

Fax

(415) 861-0323

NPI assigned

Oct 20, 2022

Sex

Male

Sole proprietor

Yes

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

Locations

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.

• City Vitals

  • Supports Brokerage Agency
  • San Francisco, CA
  • NPI 1275232993

  Social Worker

  NPD

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

{
    "created_epoch": "1666224000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1736985600000",
    "number": "1447977418",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "671 HARRISON ST",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941071312",
            "telephone_number": "415-281-5100"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "671 HARRISON ST",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941071312",
            "telephone_number": "415-281-5100",
            "fax_number": "415-861-0323"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1182 Market St Ste 300",
            "address_purpose": "LOCATION",
            "city": "San Francisco",
            "state": "CA",
            "postal_code": "941024919",
            "country_code": "US",
            "telephone_number": "415-915-0505",
            "fax_number": "415-915-0909",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KESSLER",
        "first_name": "REUBEN",
        "middle_name": "JACK",
        "credential": "ACSW",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2022-10-20",
        "last_updated": "2025-01-16",
        "certification_date": "2025-01-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "172V00000X",
            "taxonomy_group": "",
            "desc": "Community Health Worker",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• David A. Kessler, M.D.
• Ellen Kessler, LMFT
• Kathryn Kessler, DPT
• Lawrence Kessler, REHS
• Nadine Kessler, PT
• Julie Kesterson, RN
• Ketamine Treatment Centers of California PC (Actify Neurotherapies)
• Neal Dexter Ketchum
• Ruhama Ketema
• Ketetha Olengue MD Incorporated (Ordinary Psychiatry)

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

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