GARRETT GIANNESCHI DO
NPI 1851929921
Psychiatry & Neurology - Neurology with Special Qualifications in Child Neurology in South Plainfield, NJ

NPI Status: Active since April 01, 2020

Contact Information

1378 SCHINDLER DR
SOUTH PLAINFIELD, NJ
ZIP 07080
Phone: (908) 294-1161

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  • Individual
  • Male
  • Psychiatry & Neurology
  • Neurology with Special Qualifications in...

About GARRETT GIANNESCHI

This page provides the complete NPI Profile along with additional information for Garrett Gianneschi, a provider established in South Plainfield, New Jersey with a medical specialization in Psychiatry & Neurology, focusing in neurology with special qualifications in child neurology . The healthcare provider is registered in the NPI registry with number 1851929921 assigned on April 2020. The practitioner's primary taxonomy code is 2084N0402X with license number 25MB12131900 (NJ). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1851929921
Provider Name
GARRETT GIANNESCHI DO
Gender
Male
Entity Type
Individual
Location Address
1378 SCHINDLER DR SOUTH PLAINFIELD, NJ 07080
Location Phone
(908) 294-1161
Mailing Address
1378 SCHINDLER DR SOUTH PLAINFIELD, NJ 07080
Mailing Phone
(908) 294-1161
Is Sole Proprietor?
No
Enumeration Date
04-01-2020
Last Update Date
11-26-2025
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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

Psychiatry & Neurology Neurology with Special Qualifications in Child Neurology

Taxonomy Code
2084N0402X
Type
Allopathic & Osteopathic Physicians
License No.
25MB12131900
License State
NJ
Taxonomy Description
A Child Neurologist specializes in neurology with special skills in diagnosis and treatment of neurologic disorders of the neonatal period, infancy, early childhood, and adolescence.

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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 1851929921, we treat the final digit (1) 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).

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
9
Doubled → 18 → 1 + 8
Pos 6
2
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
9
Unchanged
Pos 9
2
Doubled → 4
Check
1
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 9 → 18 → 9 9 → 18 → 9 2 → 4

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 + 8 + 2 + 1 + 8 + 9 + 4 + 24 = 69

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

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1851929921.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1851929921, enumerated as an "individual" on April 01, 2020.

The provider is located at 1378 SCHINDLER DR SOUTH PLAINFIELD, NJ 07080 and the phone number is (908) 294-1161.

Psychiatry & Neurology with taxonomy code 2084N0402X and a focus in Neurology with Special Qualifications in Child Neurology.