DR. THOMAS ANTHONY GALLAGHER M.D.
NPI 1255594792
Radiology - Diagnostic Radiology in Madison, WI

NPI Status: Active since July 04, 2008

Contact Information

UW HOSPITALS AND CLINICS 600 HIGHLAND AVE
DEPARTMENT OF RADIOLOGY
MADISON, WI
ZIP 53792
Phone: (608) 263-9179

NPI Profile Information
Primary Taxonomy
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Radiology
Diagnostic Radiology

About THOMAS GALLAGHER

This page provides the complete NPI Profile along with additional information for Thomas Gallagher, a provider established in Madison, Wisconsin with a medical specialization in Radiology, focusing in diagnostic radiology . The healthcare provider is registered in the NPI registry with number 1255594792 assigned on July 2008. The practitioner's primary taxonomy code is 2085R0202X with license number 125047921 (IL). The provider is registered as an individual and his NPI record was last updated 10 years ago.

NPI: 1255594792
Provider Name: DR. THOMAS ANTHONY GALLAGHER M.D.
Gender: Male
Entity Type: Individual
Location Address: UW HOSPITALS AND CLINICS 600 HIGHLAND AVE DEPARTMENT OF RADIOLOGY MADISON, WI 53792
Location Phone: (608) 263-9179
Mailing Address: 680 N LAKE SHORE DR STE 1000 CHICAGO, IL 60611
Is Sole Proprietor?: Yes
Enumeration Date: 07-04-2008
Last Update Date: 05-09-2016
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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: Radiology Diagnostic Radiology
Taxonomy Code: 2085R0202X
Type: Allopathic & Osteopathic Physicians
License No.: 125047921
License State: IL
Taxonomy Description: A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

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 1255594792, we treat the final digit (2) 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).

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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 10 → 1 + 0

Pos 4

Unchanged

Pos 5

Doubled → 10 → 1 + 0

Pos 6

Unchanged

Pos 7

Doubled → 8

Pos 8

Unchanged

Pos 9

Doubled → 18 → 1 + 8

Check

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 5 → 10 → 1 5 → 10 → 1 4 → 8 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 1 + 0 + 5 + 1 + 0 + 9 + 8 + 7 + 1 + 8 + 24 = 68

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

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2

This NPI is valid

The calculated check digit is 2, which matches the last digit of 1255594792.