DR. BRENDAN GERARD FENNESSY MD
NPI 1851733075
Otolaryngology in Brewer, ME

NPI Status: Active since July 30, 2013

Contact Information

43 WHITING HILL RD
BREWER, ME
ZIP 04412
Phone: (207) 973-5000
Fax: (207) 973-5042

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  • Individual
  • Male
  • Otolaryngology

About BRENDAN FENNESSY

This page provides the complete NPI Profile along with additional information for Brendan Fennessy, a provider established in Brewer, Maine with a medical specialization in Otolaryngology. The healthcare provider is registered in the NPI registry with number 1851733075 assigned on July 2013. The practitioner's primary taxonomy code is 207Y00000X with license number MD20186 (ME). The provider is registered as an individual and his NPI record was last updated 12 years ago.

NPI
1851733075
Provider Name
DR. BRENDAN GERARD FENNESSY MD
Gender
Male
Entity Type
Individual
Location Address
43 WHITING HILL RD BREWER, ME 04412
Location Phone
(207) 973-5000
Location Fax
(207) 973-5042
Mailing Address
885 UNION ST STE 145 BANGOR, ME 04401
Mailing Phone
(207) 973-9595
Mailing Fax
(207) 973-5042
Is Sole Proprietor?
No
Enumeration Date
07-30-2013
Last Update Date
11-28-2014
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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

Otolaryngology

Taxonomy Code
207Y00000X
Type
Allopathic & Osteopathic Physicians
License No.
MD20186
License State
ME
Taxonomy Description
An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures of the head and neck. An otolaryngologist diagnoses and provides medical and/or surgical therapy or prevention of diseases, allergies, neoplasms, deformities, disorders and/or injuries of the ears, nose, sinuses, throat, respiratory and upper alimentary systems, face, jaws and the other head and neck systems. Head and neck oncology, facial plastic and reconstructive surgery and the treatment of disorders of hearing and voice are fundamental areas of expertise.

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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 1851733075, we treat the final digit (5) 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 55. The final step is to find the difference between that total and the next multiple of ten (60 - 55 = 5).

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
8
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
1
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
3
Unchanged
Pos 7
3
Doubled → 6
Pos 8
0
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
5
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 7 → 14 → 5 3 → 6 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 0 + 1 + 1 + 4 + 3 + 6 + 0 + 1 + 4 + 24 = 55

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

The next multiple of ten after 55 is 60. The difference is the calculated check digit.

60 - 55 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1851733075.

Other Providers at the Same Location


The following 7 providers are registered at the same or a nearby location.

Medical Genetics, Ph.D. Medical Genetics
43 WHITING HILL RD, CIANCHETTE BUILDING, SUITE 150
BREWER, ME 04412
Clinic/Center (Health Service)
43 WHITING HILL RD
BREWER, ME 04412
Physical Therapist
43 WHITING HILL RD, SUITE 300
BREWER, ME 04412
Physical Therapist
43 WHITING HILL RD
BREWER, ME 04412
Family Medicine (Hospice and Palliative Medicine)
43 WHITING HILL RD, SUITE 300
BREWER, ME 04412
Nurse Practitioner (Family)
43 WHITING HILL RD, SUITE 300
BREWER, ME 04412
Nurse Practitioner (Family)
43 WHITING HILL RD
BREWER, ME 04412

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1851733075, enumerated as an "individual" on July 30, 2013.

The provider is located at 43 WHITING HILL RD BREWER, ME 04412 and the phone number is (207) 973-5000.

Otolaryngology with taxonomy code 207Y00000X.