Individual provider Active NPI

Chiyon Won

  • Clinical Psychologist
  • San Francisco, CA
National Provider Identifier
1588912851
Registry record updated Jan 28, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical PsychologistTaxonomy code 103TC0700X
License
PSY26896 Issued in CA
Practice address
601 Clement St
San Francisco, CA 94118-2206
Phone
(415) 668-6955
Fax
(415) 668-0246
NPI assigned
Aug 17, 2012
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jan 28, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Psychologist 103TC0700X PSY26896 CA Primary
Psychologist 103T00000X E3294041 CA

Addresses

Primary practice location

601 Clement St
San Francisco, CA 94118-2206

Mailing address

2222 Bancroft Way
Berkeley, CA 94720-4301
Phone (510) 642-9494

Other practice location 1

2872 Ygnacio Valley Rd # 107
Walnut Creek, CA 94598-3534
Phone (925) 728-4650

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: No
  • Power mobility devices: No
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20241203003915 CA Practitioner - Clinical Psychologist 0143756940 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Clinical Psychologist
Education
Other, 2013
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Richmond Area Multi-Services, Inc.Group PAC ID 4284675588, 18 clinicians

Practice addresses (Care Compare)

3626 Balboa St
San Francisco, CA 94121-2604
Phone (415) 668-5955

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
E3294041CAMDPsychologist
PSY26896CAMDClinical Psychologist

Practice roles

OrganizationSpecialtyStatusNew patients
Richmond Area Multi-Services, Inc. CurrentSince Sep 28, 2024 Accepting new patients

Locations

601 Clement St
San Francisco, CA 94118
Phone (415) 668-5960

3626 Balboa St
San Francisco, CA 94121
Phone (415) 282-9675

Organizations & group practices 1

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1345161600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769558400000",
    "number": "1588912851",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2222 BANCROFT WAY",
            "city": "BERKELEY",
            "state": "CA",
            "postal_code": "947204301",
            "telephone_number": "510-642-9494",
            "fax_number": "510-642-1801"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "601 CLEMENT ST",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941182206",
            "telephone_number": "415-668-6955",
            "fax_number": "415-668-0246"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2872 Ygnacio Valley Rd # 107",
            "address_purpose": "LOCATION",
            "city": "Walnut Creek",
            "state": "CA",
            "postal_code": "945983534",
            "country_code": "US",
            "telephone_number": "925-728-4650",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WON",
        "first_name": "CHIYON",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2012-08-17",
        "last_updated": "2026-01-28",
        "certification_date": "2026-01-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "CA",
            "license": "PSY26896",
            "primary": true
        },
        {
            "code": "103T00000X",
            "taxonomy_group": "",
            "desc": "Psychologist",
            "state": "CA",
            "license": "E3294041",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

Verify at the official NPI Registry.