Individual provider Active NPI

Osun Yoo, MA, LMFT

  • Marriage & Family Therapist
  • San Ramon, CA
National Provider Identifier
1366621013
Registry record updated Jul 2, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Marriage & Family TherapistTaxonomy code 106H00000X
Practice address
9260 Alcosta Blvd Ste A5
San Ramon, CA 94583-4132
Phone
(408) 597-4847
NPI assigned
Oct 30, 2007
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 2, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Marriage & Family Therapist 106H00000X Primary

Addresses

Primary practice location

9260 Alcosta Blvd Ste A5
San Ramon, CA 94583-4132

Mailing address

9260 Alcosta Blvd Ste A5
San Ramon, CA 94583-4132
Phone (415) 529-3644

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
Credentials
Master of Arts

NPI Registry JSON

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

{
    "created_epoch": "1193702400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782950400000",
    "number": "1366621013",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9260 ALCOSTA BLVD STE A5",
            "city": "SAN RAMON",
            "state": "CA",
            "postal_code": "945834132",
            "telephone_number": "415-529-3644"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9260 ALCOSTA BLVD STE A5",
            "city": "SAN RAMON",
            "state": "CA",
            "postal_code": "945834132",
            "telephone_number": "408-597-4847"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "YOO",
        "first_name": "OSUN",
        "name_prefix": "Ms.",
        "credential": "MA, LMFT",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2007-10-30",
        "last_updated": "2026-07-02",
        "certification_date": "2026-07-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "106H00000X",
            "taxonomy_group": "",
            "desc": "Marriage & Family Therapist",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Ramon, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 2, 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.