DR. COLLEEN ANNE JOHNSON PHD
NPI 1053909374
Psychologist - Counseling in Campbell, CA

NPI Status: Active since January 03, 2021

Contact Information

15 MARAVILLA CT
CAMPBELL, CA
ZIP 95008
Phone: (408) 781-8434

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  • Individual
  • Female
  • Psychologist
  • Counseling

About COLLEEN JOHNSON

This page provides the complete NPI Profile along with additional information for Colleen Johnson, a provider established in Campbell, California with a medical specialization in Psychologist, focusing in counseling . The healthcare provider is registered in the NPI registry with number 1053909374 assigned on January 2021. The practitioner's primary taxonomy code is 103TC1900X with license number PSY26234 (CA). The provider is registered as an individual and her NPI record was last updated 5 years ago.

NPI
1053909374
Provider Name
DR. COLLEEN ANNE JOHNSON PHD
Gender
Female
Entity Type
Individual
Location Address
15 MARAVILLA CT CAMPBELL, CA 95008
Location Phone
(408) 781-8434
Mailing Address
1608 W CAMPBELL AVE # 248 CAMPBELL, CA 95008
Mailing Phone
(498) 781-8434
Is Sole Proprietor?
Yes
Enumeration Date
01-03-2021
Last Update Date
01-03-2021
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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 Counseling

Taxonomy Code
103TC1900X
Type
Behavioral Health & Social Service Providers
License No.
PSY26234
License State
CA
Taxonomy Description
A psychologist who specializes in general practice and health service. It focuses on how people function both personally and in their relationships at all ages. Counseling psychology addresses the emotional, social, work, school and physical health concerns people may have at different stages in their lives, focusing on typical life stresses and more severe issues with which people may struggle as individuals and as a part of families, groups and organizations. Counseling psychologists help people with physical, emotional and mental health issues improve their sense of well-being, alleviate feelings of distress and resolve crises. They also provide assessment, diagnosis, and treatment of more severe psychological symptoms.

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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 1053909374, we treat the final digit (4) 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).

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
0
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
3
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
0
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
3
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
4
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 5 → 10 → 1 9 → 18 → 9 9 → 18 → 9 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 1 + 0 + 3 + 1 + 8 + 0 + 1 + 8 + 3 + 1 + 4 + 24 = 56

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

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1053909374.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1053909374, enumerated as an "individual" on January 03, 2021.

The provider is located at 15 MARAVILLA CT CAMPBELL, CA 95008 and the phone number is (408) 781-8434.

Psychologist with taxonomy code 103TC1900X and a focus in Counseling.