DR. NELLIE PATRICIA GANNON DMD
NPI 1710480876
Dentist - General Practice in Boston, MA

NPI Status: Active since March 15, 2018

Contact Information

850 HARRISON AVE FL 6
BOSTON, MA
ZIP 02118
Phone: (617) 414-4837

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  • Individual
  • Female
  • Dentist
  • General Practice

About NELLIE GANNON

This page provides the complete NPI Profile along with additional information for Nellie Gannon, a provider established in Boston, Massachusetts with a medical specialization in Dentist, focusing in general practice . The healthcare provider is registered in the NPI registry with number 1710480876 assigned on March 2018. The practitioner's primary taxonomy code is 1223G0001X with license number DN1859799 (MA). The provider is registered as an individual and her NPI record was last updated 3 years ago.

NPI
1710480876
Provider Name
DR. NELLIE PATRICIA GANNON DMD
Gender
Female
Entity Type
Individual
Location Address
850 HARRISON AVE FL 6 BOSTON, MA 02118
Location Phone
(617) 414-4837
Mailing Address
46 HEREFORD ST APT 2F BOSTON, MA 02115
Mailing Phone
(708) 254-4160
Is Sole Proprietor?
Yes
Enumeration Date
03-15-2018
Last Update Date
06-20-2023
Code Navigator

A dentist like Nellie Gannon is a skilled in and licensed provider that diagnoses and treats problems with patients teeth, gums, and related parts of the mouth. Dentists educate patients on how to take care of the teeth and gums and provide information on diet choices that affect oral health. Dentists must be licensed in the state in which they work.

Location Map

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

Dentist General Practice

Taxonomy Code
1223G0001X
Type
Dental Providers
License No.
DN1859799
License State
MA
Taxonomy Description
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.

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)
11223G0001XDental Providers

Dentist
General Practice

019.031842 (IL)

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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 1710480876, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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
1
Doubled → 2
Pos 4
0
Unchanged
Pos 5
4
Doubled → 8
Pos 6
8
Unchanged
Pos 7
0
Doubled → 0
Pos 8
8
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
6
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 1 → 2 4 → 8 0 → 0 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 2 + 0 + 8 + 8 + 0 + 8 + 1 + 4 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1710480876.

Other Providers at the Same Location


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

Dentist (Oral and Maxillofacial Surgery)
850 HARRISON AVE FL 6
BOSTON, MA 02118
Pediatrics
850 HARRISON AVE FL 6
BOSTON, MA 02118
Student in an Organized Health Care Education/Training Program
850 HARRISON AVE FL 6
BOSTON, MA 02118
Medical Genetics (Clinical Genetics (M.D.))
850 HARRISON AVE FL 6
BOSTON, MA 02118
Student in an Organized Health Care Education/Training Program
850 HARRISON AVE FL 6
BOSTON, MA 02118

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1710480876, enumerated as an "individual" on March 15, 2018.

The provider is located at 850 HARRISON AVE FL 6 BOSTON, MA 02118 and the phone number is (617) 414-4837.

Dentist with taxonomy code 1223G0001X and a focus in General Practice.