Callisyn Zielenski

Primary specialty

Social WorkerTaxonomy code 104100000X

License

125791 Issued in CA

Practice address

3450 3Rd St Ste 1C
San Francisco, CA 94124-1444

Phone

(154) 437-3990

NPI assigned

Jul 29, 2016

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

Medicare enrollment (NPD)

Not enrolled

State licenses

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

{
    "created_epoch": "1469750400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783641600000",
    "number": "1861945461",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3450 3RD ST STE 1C",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941241444",
            "telephone_number": "154-437-3990"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3450 3RD ST STE 1C",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941241444",
            "telephone_number": "154-437-3990"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ZIELENSKI",
        "first_name": "CALLISYN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-07-29",
        "last_updated": "2026-07-10",
        "certification_date": "2026-07-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "CA",
            "license": "125791",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Stephanie Zi, PHARM.D.
• Elham Ziaie Matin, DMD, MSD
• Nageena Ziaullah
• Elena Camelia Zidaru, R.D.
• Claire Ziegler
• Erin Zielinski, MA
• Payton Zielinski
• Claudia Zielka
• Doris Zieman
• Lucas Stange Zier, MD, MS

• 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 Jul 10, 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.