Individual provider Active NPI

Sharon Phamduong, DDS, MS

  • Periodontics
  • Torrance, CA
National Provider Identifier
1477785103
Registry record updated Jan 30, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
PeriodonticsTaxonomy code 1223P0300X
License
53098 Issued in CA
Practice address
4201 Torrance Blvd # 450
Torrance, CA 90503-4592
Phone
(310) 540-1415
Fax
(310) 540-1423
NPI assigned
Aug 13, 2009
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 30, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Periodontics 1223P0300X 53098 CA Primary

Addresses

Primary practice location

4201 Torrance Blvd # 450
Torrance, CA 90503-4592

Mailing address

4201 Torrance Blvd # 450
Torrance, CA 90503-4592
Phone (310) 540-1415

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: Yes
  • Power mobility devices: No
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20190219003476 CA Order and Referring Only - DentistPractitioner - Dentist 7618298522

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Master of Science

State licenses

LicenseStateTypeSpecialty
53098CAMDPharmacist

Practice roles

OrganizationSpecialtyStatusNew patients
John P. Ducar, D.D.S., Inc. Periodontics Past Accepting new patients
John P. Ducar, D.D.S., Inc Periodontics Past Accepting new patients

Interoperability endpoints

  • Direct secure messaging: sphamduong@direct.westerndental.com

Organizations & group practices 2

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": "1250121600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769731200000",
    "number": "1477785103",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4201 TORRANCE BLVD # 450",
            "city": "TORRANCE",
            "state": "CA",
            "postal_code": "905034592",
            "telephone_number": "310-540-1415",
            "fax_number": "310-540-1423"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4201 TORRANCE BLVD # 450",
            "city": "TORRANCE",
            "state": "CA",
            "postal_code": "905034592",
            "telephone_number": "310-540-1415",
            "fax_number": "310-540-1423"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "PHAMDUONG",
        "first_name": "SHARON",
        "name_prefix": "Dr.",
        "credential": "DDS, MS",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2009-08-13",
        "last_updated": "2026-01-30",
        "certification_date": "2026-01-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223P0300X",
            "taxonomy_group": "",
            "desc": "Dentist, Periodontics",
            "state": "CA",
            "license": "53098",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Torrance, CA

Sources for this page

Verify at the official NPI Registry.