Sandra Olshak, LCSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

135278 Issued in CA

Practice address

582 Market St Ste 1608
San Francisco, CA 94104-5317

Phone

(833) 931-1716

Fax

(866) 519-5427

NPI assigned

Sep 29, 2006

Sex

Female

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

State licenses

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

{
    "created_epoch": "1159488000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1789689600000",
    "number": "1467544098",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "582 MARKET ST STE 1608",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941045317",
            "telephone_number": "833-931-1716",
            "fax_number": "866-519-5427"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "582 MARKET ST STE 1608",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941045317",
            "telephone_number": "833-931-1716",
            "fax_number": "866-519-5427"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4295 Gesner St Ste 2E",
            "address_purpose": "LOCATION",
            "city": "San Diego",
            "state": "CA",
            "postal_code": "921176660",
            "country_code": "US",
            "telephone_number": "833-931-1716",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "OLSHAK",
        "first_name": "SANDRA",
        "credential": "LCSW",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-09-29",
        "last_updated": "2026-09-18",
        "certification_date": "2026-09-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "IL",
            "license": "149 007934",
            "primary": false
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "TX",
            "license": "62848",
            "primary": false
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "CA",
            "license": "135278",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Brittany Olsen, M.ED.
• Brittany L Olsen, MA, MFT
• Jillian Olsen, M.D.
• Julia Olsen
• Natalie R. Olsen, NP
• Perry Martin Olshan, PHD
• Nathalie Francoise Olson-Studler
• Carol Olson, LCSW
• Catherine E. Olson, MD
• Daniel Olson

• 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 Sep 18, 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.