DR. W. CHRISTOPHER GRANT PHD
NPI 1235577073
Psychologist - Counseling in Agoura Hills, CA

NPI Status: Active since June 13, 2013

Contact Information

28310 ROADSIDE DR STE 138
AGOURA HILLS, CA
ZIP 91301
Phone: (818) 395-7767

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  • Individual
  • Male
  • Psychologist
  • Counseling

About W. GRANT

This page provides the complete NPI Profile along with additional information for W. Grant, a provider established in Agoura Hills, California with a medical specialization in Psychologist, focusing in counseling . The healthcare provider is registered in the NPI registry with number 1235577073 assigned on June 2013. The practitioner's primary taxonomy code is 103TC1900X with license number PSY25646 (CA). The provider is registered as an individual and his NPI record was last updated 6 years ago.

NPI
1235577073
Provider Name
DR. W. CHRISTOPHER GRANT PHD
Gender
Male
Entity Type
Individual
Location Address
28310 ROADSIDE DR STE 138 AGOURA HILLS, CA 91301
Location Phone
(818) 395-7767
Mailing Address
10937 FRUITLAND DR APT 18 STUDIO CITY, CA 91604
Mailing Phone
(818) 395-7767
Is Sole Proprietor?
Yes
Enumeration Date
06-13-2013
Last Update Date
07-10-2020
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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.
PSY25646
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1103T00000XBehavioral Health & Social Service Providers

Psychologist

PSY25646 (CA)

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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 1235577073, we treat the final digit (3) 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 3).

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
2
Unchanged
Pos 3
3
Doubled → 6
Pos 4
5
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
7
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
0
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
3
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 3 → 6 5 → 10 → 1 7 → 14 → 5 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 6 + 5 + 1 + 0 + 7 + 1 + 4 + 0 + 1 + 4 + 24 = 57

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

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1235577073.

Other Providers at the Same Location


The following 2 providers are registered at the same or a nearby location.

Marriage & Family Therapist
28310 ROADSIDE DR STE 138
AGOURA HILLS, CA 91301
Home Health
28310 ROADSIDE DR STE 138
AGOURA HILLS, CA 91301

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1235577073, enumerated as an "individual" on June 13, 2013.

The provider is located at 28310 ROADSIDE DR STE 138 AGOURA HILLS, CA 91301 and the phone number is (818) 395-7767.

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