Michael Jerome O'Neill, LCSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

LCSW130166 Issued in CA

Practice address

250 Bon Air Rd Unit B
Greenbrae, CA 94904-1702

Phone

(415) 473-6829

Fax

(415) 473-4113

NPI assigned

Oct 2, 2014

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

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

Specialty

Clinical Social Worker

Education

Other, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

City and County of San FranciscoGroup PAC ID 1658280748, 368 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

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 & County of San Francisco

  dba San Francisco Public Health Laboratory

  • Clinical Medical Laboratory
  • San Francisco, CA
  • NPI 1982737524

  Multi-Specialty

  Medicare reassignment Care Compare group NPD
• City & County of San Francisco

  dba Laguna Honda Medical Group

  • Geriatric Medicine (Family Medicine) Physician
  • San Francisco, CA
  • NPI 1265460190

  Multi-Specialty

  NPD
• City and County of San Francisco

  dba DSAAM OTOP Methadone Maintenance

  • Methadone Clinic
  • San Francisco, CA
  • NPI 1578787925
  NPD

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

{
    "created_epoch": "1412208000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754265600000",
    "number": "1225431349",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "375 LAGUNA HONDA BLVD",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941161411",
            "telephone_number": "628-217-7341",
            "fax_number": "415-759-3509"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "250 BON AIR RD UNIT B",
            "city": "GREENBRAE",
            "state": "CA",
            "postal_code": "949041702",
            "telephone_number": "415-473-6829",
            "fax_number": "415-473-4113"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O'NEILL",
        "first_name": "MICHAEL",
        "middle_name": "JEROME",
        "credential": "LCSW",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2014-10-02",
        "last_updated": "2025-08-04",
        "certification_date": "2025-08-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Social Worker, Clinical",
            "state": "CA",
            "license": "130166",
            "primary": false
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "CA",
            "license": "LCSW130166",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Marisela Marisa Noorhasan, M.D.
• North Bay Neurologic Medical Associates, Inc.
• Northbay Surgery Center
• Novacare Outpatient Rehabilitation of California Inc (NovaCare Outpatient Rehabilitation - Greenbrae)
• Dennis Eugene O'Connell, PA-C
• Douglas Obrien
• Lauren Oemcke, RN, CDCES
• Humphrey Ogg
• Cassandra Ohrstrom, AMFT
• Sachiko Okano, MFT

• Clinical Social Worker in Greenbrae, CA
• Providers in Greenbrae, 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 Aug 4, 2025; 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.