NPIMap

Organization Active NPI

Middletown Surgical Group, Prof Corp

  • Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
  • Middletown, CT
National Provider Identifier
1184777054
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianTaxonomy code 208G00000X
License
45609 Issued in CT
Legal business name
MIDDLETOWN SURGICAL GROUP, PROF CORP
Practice address
520 Saybrook Road
Suite S100
Middletown, CT 06457
Phone
(860) 346-2608
Fax
(860) 347-4691
NPI assigned
Jan 22, 2007
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. William A. Longo, M.D.NPI 1861471179
Title
President
Phone
(860) 347-2608

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 5

Specialty (taxonomy)CodeLicenseStatePrimary
Surgery PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 208600000X 45609 CT
Vascular Surgery PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 2086S0129X 45609 CT
Surgical Oncology PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 2086X0206X 45609 CT
Colon & Rectal Surgery PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 208C00000X 45609 CT
Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 208G00000X 45609 CT Primary

Addresses

Primary practice location

520 Saybrook Road
Suite S100
Middletown, CT 06457

Mailing address

520 Saybrook Road
Suite S100
Middletown, CT 06457
Phone (860) 346-2608

National Provider Directory

National Provider Directory

Locations

205 E High St
East Hampton, CT 06424
Phone (860) 267-2593

Practitioners & affiliated clinicians

Practitioners 3

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1169424000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1757548800000",
    "number": "1184777054",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "520 SAYBROOK ROAD",
            "address_2": "SUITE S100",
            "city": "MIDDLETOWN",
            "state": "CT",
            "postal_code": "06457",
            "telephone_number": "860-346-2608",
            "fax_number": "860-347-4691"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "520 SAYBROOK ROAD",
            "address_2": "SUITE S100",
            "city": "MIDDLETOWN",
            "state": "CT",
            "postal_code": "06457",
            "telephone_number": "860-346-2608",
            "fax_number": "860-347-4691"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "MIDDLETOWN SURGICAL GROUP, PROF CORP",
        "organizational_subpart": "NO",
        "enumeration_date": "2007-01-22",
        "last_updated": "2025-09-11",
        "status": "A",
        "authorized_official_last_name": "LONGO",
        "authorized_official_first_name": "WILLIAM",
        "authorized_official_middle_name": "A.",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "860-347-2608",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "M.D."
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Surgery",
            "state": "CT",
            "license": "45609",
            "primary": false
        },
        {
            "code": "2086S0129X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Surgery, Vascular Surgery",
            "state": "CT",
            "license": "45609",
            "primary": false
        },
        {
            "code": "2086X0206X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Surgery, Surgical Oncology",
            "state": "CT",
            "license": "45609",
            "primary": false
        },
        {
            "code": "208C00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Colon & Rectal Surgery",
            "state": "CT",
            "license": "45609",
            "primary": false
        },
        {
            "code": "208G00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Thoracic Surgery (Cardiothoracic Vascular Surgery)",
            "state": "CT",
            "license": "45609",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Middletown, CT

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.