Organization Active NPI

Amanda N Siu DDS Inc

  • Pediatric Dentistry
  • Tustin, CA
National Provider Identifier
1780125518
Registry record updated Feb 18, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatric DentistryTaxonomy code 1223P0221X
License
64432 Issued in CA
Legal business name
AMANDA N SIU DDS INC
Practice address
13362 Newport Ave Ste G
Tustin, CA 92780-3427
Phone
(714) 439-5706
Fax
(714) 439-5709
NPI assigned
Mar 13, 2017
Last updated
Feb 18, 2026By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Feb 18, 2026

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

Authorized official

Name
Dr. Amanda Siu, DDSNPI 1154745594
Title
Ceo
Phone
(714) 439-5706

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatric DentistryGroup: 193400000X SINGLE SPECIALTY GROUP 1223P0221X 64432 CA Primary

Addresses

Primary practice location

13362 Newport Ave Ste G
Tustin, CA 92780-3427

Mailing address

13362 Newport Ave Ste G
Tustin, CA 92780-3427
Phone (714) 439-5706

National Provider Directory

National Provider Directory

Locations

12062 Valley View St
Ste 250
Garden Grove, CA 92845
Phone (714) 425-9736

Practitioners & affiliated clinicians

Practitioners 3

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

NPI Registry JSON

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

{
    "created_epoch": "1489363200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1771372800000",
    "number": "1780125518",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "13362 NEWPORT AVE STE G",
            "city": "TUSTIN",
            "state": "CA",
            "postal_code": "927803427",
            "telephone_number": "714-439-5706",
            "fax_number": "714-439-5709"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "13362 NEWPORT AVE STE G",
            "city": "TUSTIN",
            "state": "CA",
            "postal_code": "927803427",
            "telephone_number": "714-439-5706",
            "fax_number": "714-439-5709"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "AMANDA N SIU DDS INC",
        "organizational_subpart": "NO",
        "enumeration_date": "2017-03-13",
        "last_updated": "2026-02-18",
        "certification_date": "2026-02-18",
        "status": "A",
        "authorized_official_last_name": "SIU",
        "authorized_official_first_name": "AMANDA",
        "authorized_official_title_or_position": "CEO",
        "authorized_official_telephone_number": "714-439-5706",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "DDS"
    },
    "taxonomies": [
        {
            "code": "1223P0221X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Dentist, Pediatric Dentistry",
            "state": "CA",
            "license": "64432",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Tustin, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 18, 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.