Individual provider Active NPI

Dennis Tobias Tansiongco, MD

  • Adolescent Medicine (Internal Medicine) Physician
  • Plainview, NY
National Provider Identifier
1174588040
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Adolescent Medicine (Internal Medicine) PhysicianTaxonomy code 207RA0000X
License
193133 Issued in NY
Practice address
1425 Old Country Rd
Plainview, NY 11803-5010
Phone
(516) 694-6008
Fax
(516) 694-6223
NPI assigned
Apr 20, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Adolescent Medicine (Internal Medicine) Physician 207RA0000X 193133 NY Primary

Addresses

Primary practice location

1425 Old Country Rd
Plainview, NY 11803-5010

Mailing address

2 The Loch
Roslyn Estates, NY 11576-1917
Phone (516) 621-3127

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20110516000439 NY Order and Referring Only - Internal MedicinePractitioner - Internal Medicine 0143406702

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
193133NYMDAdolescent Medicine (Internal Medicine) Physician

NPI Registry JSON

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

{
    "created_epoch": "1145491200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1174588040",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2 THE LOCH",
            "city": "ROSLYN ESTATES",
            "state": "NY",
            "postal_code": "115761917",
            "telephone_number": "516-621-3127",
            "fax_number": "516-621-3127"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1425 OLD COUNTRY RD",
            "city": "PLAINVIEW",
            "state": "NY",
            "postal_code": "118035010",
            "telephone_number": "516-694-6008",
            "fax_number": "516-694-6223"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TANSIONGCO",
        "first_name": "DENNIS",
        "middle_name": "TOBIAS",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-04-20",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RA0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Adolescent Medicine",
            "state": "NY",
            "license": "193133",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Plainview, NY

Sources for this page

Verify at the official NPI Registry.