JOSHUA GRIMSHAW
NPI 1821688482
Hearing Instrument Specialist in Watertown, NY

NPI Status: Active since January 19, 2021

Contact Information

53-59 PUBLIC SQ STE 202
WATERTOWN, NY
ZIP 13601
Phone: (315) 786-3225
Fax: (315) 786-3215

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

Individual
Male
Hearing Instrument Specialist

About JOSHUA GRIMSHAW

This page provides the complete NPI Profile along with additional information for Joshua Grimshaw, a provider established in Watertown, New York with a medical specialization in Hearing Instrument Specialist. The healthcare provider is registered in the NPI registry with number 1821688482 assigned on January 2021. The practitioner's primary taxonomy code is 237700000X with license number 14000036418 (NY). The provider is registered as an individual and his NPI record was last updated 5 years ago.

NPI: 1821688482
Provider Name: JOSHUA GRIMSHAW
Gender: Male
Entity Type: Individual
Location Address: 53-59 PUBLIC SQ STE 202 WATERTOWN, NY 13601
Location Phone: (315) 786-3225
Location Fax: (315) 786-3215
Mailing Address: 53-59 PUBLIC SQ STE 202 WATERTOWN, NY 13601
Mailing Phone: (315) 786-3225
Mailing Fax: (315) 786-3215
Is Sole Proprietor?: No
Enumeration Date: 01-19-2021
Last Update Date: 01-19-2021
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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: Hearing Instrument Specialist
Taxonomy Code: 237700000X
Type: Speech, Language and Hearing Service Providers
License No.: 14000036418
License State: NY
Taxonomy Description: Individuals who test hearing for the selection, adaptation, fitting, adjusting, servicing, and sale of hearing aids. Hearing Instrument Specialist is a designation provided individuals who qualify by the National Hearing Aid Society

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 1821688482, 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 → 4

Pos 4

Unchanged

Pos 5

Doubled → 12 → 1 + 2

Pos 6

Unchanged

Pos 7

Doubled → 16 → 1 + 6

Pos 8

Unchanged

Pos 9

Doubled → 16 → 1 + 6

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 2 → 4 6 → 12 → 3 8 → 16 → 7 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 4 + 1 + 1 + 2 + 8 + 1 + 6 + 4 + 1 + 6 + 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 1821688482.