NPIMap

Organization Active NPI

Tat Sum Lee, M.D.

  • Internal Medicine Physician
  • Dunkirk, NY
National Provider Identifier
1306947072
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
002401 Issued in NY
Legal business name
TAT SUM LEE, M.D.
Practice address
3898 Vineyard Dr
Dunkirk, NY 14048-3559
Phone
(716) 363-1515
Fax
(716) 363-7677
NPI assigned
Sep 26, 2006
Last updated
Sep 11, 2025By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Sep 11, 2025

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

Authorized official

Name
Dr. Tat Sum Lee, M.D.NPI 1477500304
Title
Owner
Phone
(716) 363-1515

Authorized official NPPES reports the official by name only. The link goes to the one practitioner with that name whose NPPES practice address or phone number is this organization’s.

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X 126308 NY
Family Medicine Physician 207Q00000X 226915 NY
Internal Medicine Physician 207R00000X 001581 NY
Internal Medicine Physician 207R00000X 002401 NY Primary

Addresses

Primary practice location

3898 Vineyard Dr
Dunkirk, NY 14048-3559

Mailing address

3898 Vineyard Dr
Dunkirk, NY 14048-3559
Phone (716) 363-1515

National Provider Directory

National Provider Directory

Practitioners & affiliated clinicians

Practitioners 10

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": "1159228800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1757548800000",
    "number": "1306947072",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3898 VINEYARD DR",
            "city": "DUNKIRK",
            "state": "NY",
            "postal_code": "140483559",
            "telephone_number": "716-363-1515",
            "fax_number": "716-363-7677"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3898 VINEYARD DR",
            "city": "DUNKIRK",
            "state": "NY",
            "postal_code": "140483559",
            "telephone_number": "716-363-1515",
            "fax_number": "716-363-7677"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "TAT SUM LEE, M.D.",
        "organizational_subpart": "NO",
        "enumeration_date": "2006-09-26",
        "last_updated": "2025-09-11",
        "status": "A",
        "authorized_official_last_name": "LEE",
        "authorized_official_first_name": "TAT SUM",
        "authorized_official_title_or_position": "OWNER",
        "authorized_official_telephone_number": "716-363-1515",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "M.D."
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "NY",
            "license": "126308",
            "primary": false
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "NY",
            "license": "226915",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "001581",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "002401",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Dunkirk, NY

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 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.