Sarah Song Ryu, ASW

Primary specialty

Social WorkerTaxonomy code 104100000X

License

ASW142057 Issued in CA

Practice address

650 Clark Way
Palo Alto, CA 94304-2300

Phone

(650) 617-3871

NPI assigned

Feb 3, 2021

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)

Not enrolled

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

{
    "created_epoch": "1612310400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788912000000",
    "number": "1053903849",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "650 CLARK WAY",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943042300",
            "telephone_number": "650-617-3871"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "650 CLARK WAY",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943042300",
            "telephone_number": "650-617-3871"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RYU",
        "first_name": "SARAH",
        "middle_name": "SONG",
        "credential": "ASW",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-02-03",
        "last_updated": "2026-09-09",
        "certification_date": "2026-09-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "106S00000X",
            "taxonomy_group": "",
            "desc": "Behavior Technician",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "CA",
            "license": "ASW142057",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Katherine Jane Ryan, DO
• Kathleen R Ryan, M.D.
• Michael K Ryan
• Daniel Ryu
• Jubin Ryu, M.D.
• Elisabeth Ryzen, M.D.
• Raya Hamad Saab, MD
• Christian Daniel Saavedra Chavez, MD
• Maria Saavedra Karlsson, MD
• Jerome Amoroso Sabangan, DPT

• Social Worker in Palo Alto, CA
• Providers in Palo Alto, CA by specialty
• Social Worker in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 9, 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.