DR. IAN BRENNAN
NPI 1750660239
Radiology - Vascular & Interventional Radiology in Boston, MA

NPI Status: Active since August 15, 2011

Contact Information

330 BROOKLINE AVE
BOSTON, MA
ZIP 02215
Phone: (617) 667-7000

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  • Individual
  • Male
  • Radiology
  • Vascular & Interventional Radiology

About IAN BRENNAN

This page provides the complete NPI Profile along with additional information for Ian Brennan, a provider established in Boston, Massachusetts with a medical specialization in Radiology, focusing in vascular & interventional radiology . The healthcare provider is registered in the NPI registry with number 1750660239 assigned on August 2011. The practitioner's primary taxonomy code is 2085R0204X with license number 243699 (MA). The provider is registered as an individual and his NPI record was last updated 15 years ago.

NPI
1750660239
Provider Name
DR. IAN BRENNAN
Gender
Male
Entity Type
Individual
Location Address
330 BROOKLINE AVE BOSTON, MA 02215
Location Phone
(617) 667-7000
Mailing Address
231 POND AVE BROOKLINE, MA 02445
Mailing Phone
(617) 320-9446
Is Sole Proprietor?
Yes
Enumeration Date
08-15-2011
Last Update Date
08-15-2011
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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 Vascular & Interventional Radiology

Taxonomy Code
2085R0204X
Type
Allopathic & Osteopathic Physicians
License No.
243699
License State
MA
Taxonomy Description
A radiologist who diagnoses and treats diseases by various radiologic imaging modalities. These include fluoroscopy, digital radiography, computed tomography, sonography and magnetic resonance imaging.

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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 1750660239, we treat the final digit (9) 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 51. The final step is to find the difference between that total and the next multiple of ten (60 - 51 = 9).

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
7
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
0
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
6
Unchanged
Pos 7
0
Doubled → 0
Pos 8
2
Unchanged
Pos 9
3
Doubled → 6
Check
9
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 6 → 12 → 3 0 → 0 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 0 + 0 + 1 + 2 + 6 + 0 + 2 + 6 + 24 = 51

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

The next multiple of ten after 51 is 60. The difference is the calculated check digit.

60 - 51 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1750660239.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Obstetrics & Gynecology (Maternal & Fetal Medicine)
330 BROOKLINE AVE, KS 306
BOSTON, MA 02215
Internal Medicine (Cardiovascular Disease)
330 BROOKLINE AVE
BOSTON, MA 02215
Anesthesiology
330 BROOKLINE AVE, DEPT OF ANESTHESIA ST-308
BOSTON, MA 02215
Internal Medicine (Critical Care Medicine)
330 BROOKLINE AVE, GZ 405
BOSTON, MA 02215
Radiology (Radiation Oncology)
330 BROOKLINE AVE, FINARD BUILDING B25
BOSTON, MA 02215
Psychiatry & Neurology (Neurology)
330 BROOKLINE AVE
BOSTON, MA 02215
Pathology (Neuropathology)
330 BROOKLINE AVE, DEPT. OF NEUROLOGY
BOSTON, MA 02215
Internal Medicine (Cardiovascular Disease)
330 BROOKLINE AVE
BOSTON, MA 02215
Internal Medicine (Geriatric Medicine)
330 BROOKLINE AVE
BOSTON, MA 02215
Hospitalist
330 BROOKLINE AVE
BOSTON, MA 02215
Internal Medicine
330 BROOKLINE AVE
BOSTON, MA 02215
Internal Medicine (Pulmonary Disease)
330 BROOKLINE AVE, GZ-402
BOSTON, MA 02215
Internal Medicine (Pulmonary Disease)
330 BROOKLINE AVE, KSB23, BIDMC PULMONARY
BOSTON, MA 02215
Pathology (Anatomic Pathology)
330 BROOKLINE AVE, DEPT OF MEDICINE
BOSTON, MA 02215
Pediatrics (Neonatal-Perinatal Medicine)
330 BROOKLINE AVE, ROSE BUILDING ROOM 318
BOSTON, MA 02215
Internal Medicine (Gastroenterology)
330 BROOKLINE AVE
BOSTON, MA 02215
Internal Medicine
330 BROOKLINE AVE, SHAPIRO 6
BOSTON, MA 02215
Internal Medicine (Pulmonary Disease)
330 BROOKLINE AVE, BETH ISRAEL DEACONESS MEDICAL CENTER
BOSTON, MA 02215
Internal Medicine (Infectious Disease)
330 BROOKLINE AVE, RESEARCH EAST 113 BETH ISRAEL DEACONESS HOSPITAL
BOSTON, MA 02215
Orthopaedic Surgery
330 BROOKLINE AVE, BIDMC - STONEMAN 10
BOSTON, MA 02215

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1750660239, enumerated as an "individual" on August 15, 2011.

The provider is located at 330 BROOKLINE AVE BOSTON, MA 02215 and the phone number is (617) 667-7000.

Radiology with taxonomy code 2085R0204X and a focus in Vascular & Interventional Radiology.