Individual provider Active NPI

Stacey Corwin Farrelly

  • Mental Health Counselor
  • San Francisco, CA
National Provider Identifier
1558265066
Registry record updated Oct 7, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Mental Health CounselorTaxonomy code 101YM0800X
Practice address
850 S Van Ness Ave
San Francisco, CA 94110-1911
Phone
(774) 420-9848
NPI assigned
Oct 7, 2026
Last updated
Oct 7, 2026By the provider in NPPES
Sex
Unspecified or another gender identity
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 7, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Mental Health Counselor 101YM0800X Primary

Addresses

Primary practice location

850 S Van Ness Ave
San Francisco, CA 94110-1911

Mailing address

850 S Van Ness Ave Ste 16
San Francisco, CA 94110-1911

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled

NPI Registry JSON

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

{
    "created_epoch": "1791331200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1791331200000",
    "number": "1558265066",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "850 S VAN NESS AVE STE 16",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941101911"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "850 S VAN NESS AVE",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941101911",
            "telephone_number": "774-420-9848"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FARRELLY",
        "first_name": "STACEY",
        "middle_name": "CORWIN",
        "sole_proprietor": "NO",
        "sex": "X",
        "enumeration_date": "2026-10-07",
        "last_updated": "2026-10-07",
        "certification_date": "2026-10-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YM0800X",
            "taxonomy_group": "",
            "desc": "Counselor, Mental Health",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 7, 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.