Individual provider Active NPI

Andy S Yoon

  • Dentist
  • Norwalk, CT
National Provider Identifier
1841990181
Registry record updated Oct 21, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
DentistTaxonomy code 122300000X
License
14586 Issued in CT
Practice address
360 Connecticut Ave
Norwalk, CT 06854-1824
Phone
(203) 831-0080
NPI assigned
Mar 6, 2023
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Oct 21, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Dentist 122300000X 14586 CT Primary

Addresses

Primary practice location

360 Connecticut Ave
Norwalk, CT 06854-1824

Mailing address

1 Mill Plain Rd
Danbury, CT 06811-5139
Phone (631) 559-6432

Other practice location 1

1 Mill Plain Rd
Danbury, CT 06811-5139
Phone (203) 743-9001

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

NPI Registry JSON

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

{
    "created_epoch": "1678060800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761004800000",
    "number": "1841990181",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1 MILL PLAIN RD",
            "city": "DANBURY",
            "state": "CT",
            "postal_code": "068115139",
            "telephone_number": "631-559-6432"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "360 CONNECTICUT AVE",
            "city": "NORWALK",
            "state": "CT",
            "postal_code": "068541824",
            "telephone_number": "203-831-0080"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1 Mill Plain Rd",
            "address_purpose": "LOCATION",
            "city": "Danbury",
            "state": "CT",
            "postal_code": "068115139",
            "country_code": "US",
            "telephone_number": "203-743-9001",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "YOON",
        "first_name": "ANDY",
        "middle_name": "S",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2023-03-06",
        "last_updated": "2025-10-21",
        "certification_date": "2025-10-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "122300000X",
            "taxonomy_group": "",
            "desc": "Dentist",
            "state": "CT",
            "license": "14586",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Norwalk, CT

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 21, 2025; 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.