CHARLIE ROBERTSON
NPI 1962387548
Psychologist - Cognitive & Behavioral in Bellingham, WA

NPI Status: Active since August 11, 2025

Contact Information

1400 BROADWAY
BELLINGHAM, WA
ZIP 98225
Phone: (360) 922-6977

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

Individual
Psychologist
Cognitive & Behavioral

About CHARLIE ROBERTSON

This page provides the complete NPI Profile along with additional information for Charlie Robertson, a provider established in Bellingham, Washington operating as a Psychologist, focusing in cognitive & behavioral . The healthcare provider is registered in the NPI registry with number 1962387548 assigned on August 2025. The practitioner's primary taxonomy code is 103TB0200X with license number SWAA.SA.70001821 (WA). The provider is registered as an individual and their NPI record was last updated one year ago.

NPI: 1962387548
Provider Name: CHARLIE ROBERTSON
Gender
Entity Type: Individual
Location Address: 1400 BROADWAY BELLINGHAM, WA 98225
Location Phone: (360) 922-6977
Mailing Address: 2028 HURON ST BELLINGHAM, WA 98229
Is Sole Proprietor?: No
Enumeration Date: 08-11-2025
Last Update Date: 08-11-2025
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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: Psychologist Cognitive & Behavioral
Taxonomy Code: 103TB0200X
Type: Behavioral Health & Social Service Providers
License No.: SWAA.SA.70001821
License State: WA
Taxonomy Description: A psychologist who reflects an experimental-clinical approach distinguished by use of principles of human learning and development and theories of cognitive processing to promote meaningful change in maladaptive human behavior and thinking.

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 1962387548, we treat the final digit (8) 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 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 8).

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 → 12 → 1 + 2

Pos 4

Unchanged

Pos 5

Doubled → 6

Pos 6

Unchanged

Pos 7

Doubled → 14 → 1 + 4

Pos 8

Unchanged

Pos 9

Doubled → 8

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 6 → 12 → 3 3 → 6 7 → 14 → 5 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 1 + 2 + 2 + 6 + 8 + 1 + 4 + 5 + 8 + 24 = 72

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

The next multiple of ten after 72 is 80. The difference is the calculated check digit.

80 - 72 = 8

This NPI is valid

The calculated check digit is 8, which matches the last digit of 1962387548.