AMBER LARSEN HAD
NPI 1720857907
Hearing Instrument Specialist in Rapid City, SD

NPI Status: Active since December 28, 2023

Contact Information

4150 5TH ST
RAPID CITY, SD
ZIP 57701
Phone: (605) 755-3587

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

Individual
Female
Hearing Instrument Specialist

About AMBER LARSEN

This page provides the complete NPI Profile along with additional information for Amber Larsen, a provider established in Rapid City, South Dakota with a medical specialization in Hearing Instrument Specialist. The healthcare provider is registered in the NPI registry with number 1720857907 assigned on December 2023. The practitioner's primary taxonomy code is 237700000X with license number 1095-H (SD). The provider is registered as an individual and her NPI record was last updated 2 years ago.

NPI: 1720857907
Provider Name: AMBER LARSEN HAD
Gender: Female
Entity Type: Individual
Location Address: 4150 5TH ST RAPID CITY, SD 57701
Location Phone: (605) 755-3587
Mailing Address: 24004 POMMEL LOOP RAPID CITY, SD 57701
Mailing Phone: (605) 280-2349
Is Sole Proprietor?: No
Enumeration Date: 12-28-2023
Last Update Date: 12-28-2023
Code Navigator

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: Hearing Instrument Specialist
Taxonomy Code: 237700000X
Type: Speech, Language and Hearing Service Providers
License No.: 1095-H
License State: SD
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 1720857907, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).

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 → 16 → 1 + 6

Pos 6

Unchanged

Pos 7

Doubled → 14 → 1 + 4

Pos 8

Unchanged

Pos 9

Doubled → 0

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 8 → 16 → 7 7 → 14 → 5 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 4 + 0 + 1 + 6 + 5 + 1 + 4 + 9 + 0 + 24 = 63

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

The next multiple of ten after 63 is 70. The difference is the calculated check digit.

70 - 63 = 7

This NPI is valid

The calculated check digit is 7, which matches the last digit of 1720857907.