LEXIE BROST HIS
NPI 1821812892
Hearing Instrument Specialist in Seattle, WA

NPI Status: Active since November 14, 2024

Contact Information

9776 HOLMAN RD NW STE 101
SEATTLE, WA
ZIP 98117
Phone: (206) 782-6770

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  • Individual
  • Female
  • Hearing Instrument Specialist

About LEXIE BROST

This page provides the complete NPI Profile along with additional information for Lexie Brost, a provider established in Seattle, Washington with a medical specialization in Hearing Instrument Specialist. The healthcare provider is registered in the NPI registry with number 1821812892 assigned on November 2024. The practitioner's primary taxonomy code is 237700000X with license number HA60020372 (WA). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1821812892
Provider Name
LEXIE BROST HIS
Gender
Female
Entity Type
Individual
Location Address
9776 HOLMAN RD NW STE 101 SEATTLE, WA 98117
Location Phone
(206) 782-6770
Mailing Address
15560 WESTMINSTER WAY N APT 264 SHORELINE, WA 98133
Mailing Phone
(360) 708-7621
Is Sole Proprietor?
No
Enumeration Date
11-14-2024
Last Update Date
08-18-2025
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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

Hearing Instrument Specialist

Taxonomy Code
237700000X
Type
Speech, Language and Hearing Service Providers
License No.
HA60020372
License State
WA
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

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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 1821812892, 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
1
Doubled → 2
Pos 2
8
Unchanged
Pos 3
2
Doubled → 4
Pos 4
1
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
1
Unchanged
Pos 7
2
Doubled → 4
Pos 8
8
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
2
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 2 → 4 9 → 18 → 9

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 + 6 + 1 + 4 + 8 + 1 + 8 + 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 1821812892.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Hearing Instrument Specialist
9776 HOLMAN RD NW STE 101
SEATTLE, WA 98117

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1821812892, enumerated as an "individual" on November 14, 2024.

The provider is located at 9776 HOLMAN RD NW STE 101 SEATTLE, WA 98117 and the phone number is (206) 782-6770.

Hearing Instrument Specialist with taxonomy code 237700000X.