Siamak N Hersini, DMD

Primary specialty

General Practice DentistryTaxonomy code 1223G0001X

License

TLD5285 Issued in ME

Practice address

1 S. Astor Sr.
Apt 504
Irvington, NY 10533

Phone

(914) 261-1650

NPI assigned

Jan 31, 2007

Last updated

Oct 2, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 5

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

Practice roles

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.

• Sia N. Hersini, DMD, PC

  • General Practice Dentistry
  • Geneva, NY
  • NPI 1699807362
  NPD (past)
• Downeast Center for Restorative Dentistry

  • Dentist
  • Kittery, ME
  • NPI 1568709772
  NPD (past)

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

{
    "created_epoch": "1170201600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759363200000",
    "number": "1760529499",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1 S. ASTOR SR.",
            "address_2": "APT 504",
            "city": "IRVINGTON",
            "state": "NY",
            "postal_code": "10533",
            "telephone_number": "914-261-1650",
            "fax_number": "315-781-1297"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 S. ASTOR SR.",
            "address_2": "APT 504",
            "city": "IRVINGTON",
            "state": "NY",
            "postal_code": "10533",
            "telephone_number": "914-261-1650"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HERSINI",
        "first_name": "SIAMAK",
        "middle_name": "N",
        "name_prefix": "Dr.",
        "credential": "DMD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-01-31",
        "last_updated": "2025-10-02",
        "certification_date": "2025-10-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "122300000X",
            "taxonomy_group": "",
            "desc": "Dentist",
            "state": "CO",
            "license": "00206399",
            "primary": false
        },
        {
            "code": "122300000X",
            "taxonomy_group": "",
            "desc": "Dentist",
            "state": "ME",
            "license": "TLD5285",
            "primary": false
        },
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "ME",
            "license": "TLD5285",
            "primary": true
        },
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "CO",
            "license": "DEN.00206399",
            "primary": false
        },
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "NY",
            "license": "048827",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Toby Anne Helfenstein, MA OTL
• David Henry
• Marko S Herceg, PH.D.
• Hector Gabriel Hernandez
• Yazmin Hernandez, LMSW
• Nathaniel Hicks
• Hudson Valley Family Health Nurse Practitioner, LLC (Hudson Valley Breastfeeding)
• Hudson Valley Milk Bank, Inc.
• Irvington Volunteer Ambulance Corps Inc
• Myriame Jean Philippe

• General Practice Dentistry in Irvington, NY
• Providers in Irvington, NY by specialty
• General Practice Dentistry in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 2, 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.