GARRET DALE JOHNSON
NPI 1912474339
Peer Specialist in Spokane, WA

NPI Status: Active since October 24, 2018

Contact Information

312 W 8TH AVE
SPOKANE, WA
ZIP 99204
Phone: (509) 477-4397

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

Individual
Male
Peer Specialist

About GARRET JOHNSON

This page provides the complete NPI Profile along with additional information for Garret Johnson, a provider established in Spokane, Washington with a medical specialization in Peer Specialist. The healthcare provider is registered in the NPI registry with number 1912474339 assigned on October 2018. The practitioner's primary taxonomy code is 175T00000X with license number 60725840 (). The provider is registered as an individual and his NPI record was last updated 8 years ago.

NPI: 1912474339
Provider Name: GARRET DALE JOHNSON
Gender: Male
Entity Type: Individual
Location Address: 312 W 8TH AVE SPOKANE, WA 99204
Location Phone: (509) 477-4397
Mailing Address: 312 W 8TH AVE SPOKANE, WA 99204
Is Sole Proprietor?: No
Enumeration Date: 10-24-2018
Last Update Date: 10-24-2018
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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: Peer Specialist
Taxonomy Code: 175T00000X
Type: Other Service Providers
License No.: 60725840
Taxonomy Description: Individuals certified to perform peer support services through a training process defined by a government agency, such as the Department of Veterans Affairs or a state mental health department/certification/licensing authority.

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 1912474339, we treat the final digit (9) 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 9).

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 → 2

Pos 4

Unchanged

Pos 5

Doubled → 8

Pos 6

Unchanged

Pos 7

Doubled → 8

Pos 8

Unchanged

Pos 9

Doubled → 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 1 → 2 4 → 8 4 → 8 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 2 + 2 + 8 + 7 + 8 + 3 + 6 + 24 = 71

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

The next multiple of ten after 71 is 80. The difference is the calculated check digit.

80 - 71 = 9

This NPI is valid

The calculated check digit is 9, which matches the last digit of 1912474339.