DR. GLENN ALBERT JOHNSON PHD
NPI 1710929765
Speech-Language Pathologist in Seattle, WA

NPI Status: Active since June 12, 2006

Contact Information

2611 NE 125TH ST
SUITE 225
SEATTLE, WA
ZIP 98125
Phone: (206) 361-6884

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  • Individual
  • Male
  • Speech-Language Pathologist

About GLENN JOHNSON

This page provides the complete NPI Profile along with additional information for Glenn Johnson, a provider established in Seattle, Washington with a medical specialization in Speech-language Pathologist. The healthcare provider is registered in the NPI registry with number 1710929765 assigned on June 2006. The practitioner's primary taxonomy code is 235Z00000X with license number LL00002989 (WA). The provider is registered as an individual and his NPI record was last updated May 2026.

NPI
1710929765
Provider Name
DR. GLENN ALBERT JOHNSON PHD
Gender
Male
Entity Type
Individual
Location Address
2611 NE 125TH ST SUITE 225 SEATTLE, WA 98125
Location Phone
(206) 361-6884
Mailing Address
6828 30TH AVE NE SEATTLE, WA 98115
Mailing Phone
(206) 527-9105
Is Sole Proprietor?
Yes
Enumeration Date
06-12-2006
Last Update Date
05-24-2026
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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

Speech-Language Pathologist

Taxonomy Code
235Z00000X
Type
Speech, Language and Hearing Service Providers
License No.
LL00002989
License State
WA
Taxonomy Description
The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing.

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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 1710929765, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).

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
7
Unchanged
Pos 3
1
Doubled → 2
Pos 4
0
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
2
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
7
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
5
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 9 → 18 → 9 9 → 18 → 9 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 2 + 0 + 1 + 8 + 2 + 1 + 8 + 7 + 1 + 2 + 24 = 65

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

The next multiple of ten after 65 is 70. The difference is the calculated check digit.

70 - 65 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1710929765.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Physical Therapist
2611 NE 125TH ST, TAI NORTHLAKE PHYSICAL THERAPY STE 140
SEATTLE, WA 98125
Social Worker (Clinical)
2611 NE 125TH ST
SEATTLE, WA 98125
Physical Therapist
2611 NE 125TH ST, STE 140
SEATTLE, WA 98125
Psychiatry & Neurology (Psychiatry)
2611 NE 125TH ST, #206
SEATTLE, WA 98125
Chiropractor
2611 NE 125TH ST, SUITE 240
SEATTLE, WA 98125
Naturopath
2611 NE 125TH ST, SUITE 240
SEATTLE, WA 98125
Counselor (Mental Health)
2611 NE 125TH ST, SUITE 104
SEATTLE, WA 98125
Social Worker (Clinical)
2611 NE 125TH ST, SUITE 116
SEATTLE, WA 98125
Podiatrist
2611 NE 125TH ST, STE 130
SEATTLE, WA 98125
Psychologist (Clinical)
2611 NE 125TH ST, SUITE 225
SEATTLE, WA 98125
Psychiatry & Neurology (Psychiatry)
2611 NE 125TH ST, SUITE 104
SEATTLE, WA 98125
Speech-Language Pathologist
2611 NE 125TH ST, SUITE 103
SEATTLE, WA 98125
Psychologist (Clinical)
2611 NE 125TH ST, SUITE 225
SEATTLE, WA 98125
Dentist (Periodontics)
2611 NE 125TH ST, SUITE 236
SEATTLE, WA 98125
Psychologist (Clinical)
2611 NE 125TH ST, SUITE 225
SEATTLE, WA 98125
Chiropractor
2611 NE 125TH ST, SUITE 115
SEATTLE, WA 98125
Chiropractor
2611 NE 125TH ST, SUITE 115
SEATTLE, WA 98125
Psychologist (Clinical)
2611 NE 125TH ST, SUITE 225
SEATTLE, WA 98125
Marriage & Family Therapist
2611 NE 125TH ST, SUITE 114
SEATTLE, WA 98125
Dentist (General Practice)
2611 NE 125TH ST, SUITE 110
SEATTLE, WA 98125

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1710929765, enumerated as an "individual" on June 12, 2006.

The provider is located at 2611 NE 125TH ST SUITE 225 SEATTLE, WA 98125 and the phone number is (206) 361-6884.

Speech-Language Pathologist with taxonomy code 235Z00000X.