MIDDLETOWN SURGICAL GROUP, PROF CORP
NPI 1184777054
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Middletown, CT

NPI Status: Active since January 22, 2007

Contact Information

520 SAYBROOK ROAD
SUITE S100
MIDDLETOWN, CT
ZIP 06457
Phone: (860) 346-2608
Fax: (860) 347-4691

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About MIDDLETOWN SURGICAL GROUP, PROF CORP

This page provides the complete NPI Profile along with additional information for Middletown Surgical Group, Prof Corp, a provider established in Middletown, Connecticut operating as a Thoracic Surgery (cardiothoracic Vascular Surgery). The healthcare provider is registered in the NPI registry with number 1184777054 assigned on January 2007. The practitioner's primary taxonomy code is 208G00000X with license number 45609 (CT). The provider is registered as an organization and their NPI record was last updated one year ago. Middletown Surgical Group, Prof Corp operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Dr. William A. Longo M.d. (President)

NPI
1184777054
Provider Name
MIDDLETOWN SURGICAL GROUP, PROF CORP
Entity Type
Organization
Location Address
520 SAYBROOK ROAD SUITE S100 MIDDLETOWN, CT 06457
Location Phone
(860) 346-2608
Location Fax
(860) 347-4691
Mailing Address
520 SAYBROOK ROAD SUITE S100 MIDDLETOWN, CT 06457
Mailing Phone
(860) 346-2608
Mailing Fax
(860) 347-4691
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
01-22-2007
Last Update Date
09-11-2025
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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Thoracic Surgery (Cardiothoracic Vascular Surgery)

Taxonomy Code
208G00000X
Type
Allopathic & Osteopathic Physicians
License No.
45609
License State
CT
Taxonomy Description
A thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall, abnormalities of the trachea, abnormalities of the great vessels and heart valves, congenital anomalies, tumors of the mediastinum and diseases of the diaphragm. The management of the airway and injuries of the chest is within the scope of the specialty.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1208600000XAllopathic & Osteopathic Physicians

Surgery

45609 (CT)
22086S0129XAllopathic & Osteopathic Physicians

Surgery
Vascular Surgery

45609 (CT)
32086X0206XAllopathic & Osteopathic Physicians

Surgery
Surgical Oncology

45609 (CT)
4208C00000XAllopathic & Osteopathic Physicians

Colon & Rectal Surgery

45609 (CT)

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

DR. WILLIAM A. LONGO M.D.

Authorized Official Title
PRESIDENT
Authorized Official Phone
(860) 347-2608

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1184777054, we treat the final digit (4) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
1
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
4
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
7
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
0
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
4
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 8 → 16 → 7 7 → 14 → 5 7 → 14 → 5 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 1 + 1 + 6 + 4 + 1 + 4 + 7 + 1 + 4 + 0 + 1 + 0 + 24 = 56

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1184777054.

Other Providers at the Same Location


The following 5 providers are registered at the same or a nearby location.

Internal Medicine (Cardiovascular Disease)
520 SAYBROOK ROAD, MIDDLESEX CARDIOLOGY ASSOCIATES
MIDDLETOWN, CT 06457
Internal Medicine (Cardiovascular Disease)
520 SAYBROOK ROAD, MIDDLESEX CARDIOLOGY ASSOCIATES
MIDDLETOWN, CT 06457
Urology
520 SAYBROOK ROAD, SUITE 100B
MIDDLETOWN, CT 06457
Urology
520 SAYBROOK ROAD, SUITE 100B
MIDDLETOWN, CT 06457
Urology
520 SAYBROOK ROAD, SUITE 100B
MIDDLETOWN, CT 06457

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1184777054, enumerated as an "organization" on January 22, 2007.

The provider is located at 520 SAYBROOK ROAD SUITE S100 MIDDLETOWN, CT 06457 and the phone number is (860) 346-2608.

Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.