Individual provider Active NPI

Si Won Choi

  • General Practice Dentistry
  • Riverside, CA
National Provider Identifier
1972486991
Registry record updated Mar 17, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
General Practice DentistryTaxonomy code 1223G0001X
License
111777 Issued in CA
Practice address
10925 Magnolia Ave
Riverside, CA 92505-3044
Phone
(951) 977-9991
NPI assigned
Jul 28, 2025
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Mar 17, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
General Practice Dentistry 1223G0001X 111777 CA Primary

Addresses

Primary practice location

10925 Magnolia Ave
Riverside, CA 92505-3044

Mailing address

1510 Orange Ave Apt 1204
Redlands, CA 92373-1227
Phone (269) 519-4547

Other practice location 1

955 Boardwalk Ste 103B
San Marcos, CA 92078-2659
Phone (760) 606-4548

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

State licenses

LicenseStateTypeSpecialty
111777CAMDMarriage & Family Therapist

Practice roles

OrganizationSpecialtyStatusNew patients
Yoonho Chang DDS Inc. General Practice PastSince Aug 3, 2025 Accepting new patients

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

NPI Registry JSON

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

{
    "created_epoch": "1753660800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773705600000",
    "number": "1972486991",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1510 ORANGE AVE APT 1204",
            "city": "REDLANDS",
            "state": "CA",
            "postal_code": "923731227",
            "telephone_number": "269-519-4547"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "10925 MAGNOLIA AVE",
            "city": "RIVERSIDE",
            "state": "CA",
            "postal_code": "925053044",
            "telephone_number": "951-977-9991"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "955 Boardwalk Ste 103B",
            "address_purpose": "LOCATION",
            "city": "San Marcos",
            "state": "CA",
            "postal_code": "920782659",
            "country_code": "US",
            "telephone_number": "760-606-4548",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CHOI",
        "first_name": "SI WON",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2025-07-28",
        "last_updated": "2026-03-17",
        "certification_date": "2026-03-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "CA",
            "license": "111777",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Riverside, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 17, 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.