DR. JULIET WARNER PHD
NPI 1508020728
Clinical Neuropsychologist in Woodland Hills, CA

NPI Status: Active since July 16, 2008

Contact Information

22837 VENTURA BLVD STE 200
WOODLAND HILLS, CA
ZIP 91364
Phone: (310) 855-3276
Fax: (310) 393-9893

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  • Individual
  • Female
  • Clinical Neuropsychologist

About JULIET WARNER

This page provides the complete NPI Profile along with additional information for Juliet Warner, a provider established in Woodland Hills, California with a medical specialization in Clinical Neuropsychologist. The healthcare provider is registered in the NPI registry with number 1508020728 assigned on July 2008. The practitioner's primary taxonomy code is 103G00000X with license number PSY21997 (CA). The provider is registered as an individual and her NPI record was last updated February 2026.

NPI
1508020728
Provider Name
DR. JULIET WARNER PHD
Gender
Female
Entity Type
Individual
Location Address
22837 VENTURA BLVD STE 200 WOODLAND HILLS, CA 91364
Location Phone
(310) 855-3276
Location Fax
(310) 393-9893
Mailing Address
22837 VENTURA BLVD STE 200 WOODLAND HILLS, CA 91364
Mailing Phone
(310) 855-3276
Mailing Fax
(310) 393-9893
Is Sole Proprietor?
No
Enumeration Date
07-16-2008
Last Update Date
02-26-2026
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Location Map

Secondary Locations

  • 7300 Stockdale Hwy
    Bakersfield, CA 93309
    (310) 855-3276

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

Clinical Neuropsychologist

Taxonomy Code
103G00000X
Type
Behavioral Health & Social Service Providers
License No.
PSY21997
License State
CA
Taxonomy Description
A clinical psychologist who applies principles of assessment and intervention based upon the scientific study of human behavior as it relates to normal and abnormal functioning of the central nervous system. The specialty is dedicated to enhancing the understanding of brain-behavior relationships and the application of such knowledge to human problems.

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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 1508020728, 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 52. The final step is to find the difference between that total and the next multiple of ten (60 - 52 = 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
1
Doubled → 2
Pos 2
5
Unchanged
Pos 3
0
Doubled → 0
Pos 4
8
Unchanged
Pos 5
0
Doubled → 0
Pos 6
2
Unchanged
Pos 7
0
Doubled → 0
Pos 8
7
Unchanged
Pos 9
2
Doubled → 4
Check
8
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 0 → 0 0 → 0 0 → 0 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 0 + 8 + 0 + 2 + 0 + 7 + 4 + 24 = 52

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

The next multiple of ten after 52 is 60. The difference is the calculated check digit.

60 - 52 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1508020728.

Other Providers at the Same Location


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

Marriage & Family Therapist
22837 VENTURA BLVD STE 200
WOODLAND HILLS, CA 91364
Psychologist (Clinical)
22837 VENTURA BLVD STE 200
WOODLAND HILLS, CA 91364

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1508020728, enumerated as an "individual" on July 16, 2008.

The provider is located at 22837 VENTURA BLVD STE 200 WOODLAND HILLS, CA 91364 and the phone number is (310) 855-3276.

Clinical Neuropsychologist with taxonomy code 103G00000X.