GRETA M COUPER
NPI 1568327690
Psychologist - Counseling in Los Angeles, CA

NPI Status: Active since December 20, 2025

Contact Information

2001 S BARRINGTON AVE
LOS ANGELES, CA
ZIP 90025
Phone: (310) 207-6147

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  • Individual
  • Female
  • Psychologist
  • Counseling

About GRETA COUPER

This page provides the complete NPI Profile along with additional information for Greta Couper, a provider established in Los Angeles, California with a medical specialization in Psychologist, focusing in counseling . The healthcare provider is registered in the NPI registry with number 1568327690 assigned on December 2025. The practitioner's primary taxonomy code is 103TC1900X with license number 158509 (CA). The provider is registered as an individual and her NPI record was last updated January 2026.

NPI
1568327690
Provider Name
GRETA M COUPER
Gender
Female
Entity Type
Individual
Location Address
2001 S BARRINGTON AVE LOS ANGELES, CA 90025
Location Phone
(310) 207-6147
Mailing Address
11420 SANTA MONICA BLVD 25302 LOS ANGELES, CA 90025
Mailing Phone
(310) 207-6147
Is Sole Proprietor?
Yes
Enumeration Date
12-20-2025
Last Update Date
01-12-2026
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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

Psychologist Counseling

Taxonomy Code
103TC1900X
Type
Behavioral Health & Social Service Providers
License No.
158509
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 1568327690, we treat the final digit (0) 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 70. The final step is to find the difference between that total and the next multiple of ten (70 - 70 = 0).

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
6
Doubled → 12 → 1 + 2
Pos 4
8
Unchanged
Pos 5
3
Doubled → 6
Pos 6
2
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
6
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
0
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 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 2 + 8 + 6 + 2 + 1 + 4 + 6 + 1 + 8 + 24 = 70

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

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

70 - 70 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1568327690.

Other Providers at the Same Location


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

Social Worker (Clinical)
2001 S BARRINGTON AVE, #307
LOS ANGELES, CA 90025
Internal Medicine
2001 S BARRINGTON AVE, #116
LOS ANGELES, CA 90025
Marriage & Family Therapist
2001 S BARRINGTON AVE, SUITE 320
LOS ANGELES, CA 90025
Psychologist (Clinical)
2001 S BARRINGTON AVE, SUITE 304
WEST LOS ANGELES, CA 90025
Psychologist
2001 S BARRINGTON AVE, #110
LA, CA 90025
Marriage & Family Therapist
2001 S BARRINGTON AVE, SUITE 117
LOS ANGELES, CA 90025
Marriage & Family Therapist
2001 S BARRINGTON AVE
LOS ANGELES, CA 90025
Family Medicine
2001 S BARRINGTON AVE, SUITE 208
LOS ANGELES, CA 90025
Clinic/Center (Multi-Specialty)
2001 S BARRINGTON AVE, SUITE 212
LOS ANGELES, CA 90025
Clinical Neuropsychologist
2001 S BARRINGTON AVE, SUITE 320
LOS ANGELES, CA 90025
Psychologist (Clinical)
2001 S BARRINGTON AVE, #304
WEST LOS ANGELES, CA 90025
Marriage & Family Therapist
2001 S BARRINGTON AVE, SUITE 110
LOS ANGELES, CA 90025
Psychologist
2001 S BARRINGTON AVE, SUITE 307
LOS ANGELES, CA 90025
Marriage & Family Therapist
2001 S BARRINGTON AVE, 216
LOS ANGELES, CA 90025
Marriage & Family Therapist
2001 S BARRINGTON AVE, SUITE 209
LOS ANGELES, CA 90025
Marriage & Family Therapist
2001 S BARRINGTON AVE, 203
LOS ANGELES, CA 90025
Psychologist (Adult Development & Aging)
2001 S BARRINGTON AVE, SUITE 203
LOS ANGELES, CA 90025
Psychologist (Clinical)
2001 S BARRINGTON AVE, #308
LOS ANGELES, CA 90025
Social Worker (Clinical)
2001 S BARRINGTON AVE, SUITE 211
LOS ANGELES, CA 90025
Counselor (Mental Health)
2001 S BARRINGTON AVE, 202
LOS ANGELES, CA 90025

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1568327690, enumerated as an "individual" on December 20, 2025.

The provider is located at 2001 S BARRINGTON AVE LOS ANGELES, CA 90025 and the phone number is (310) 207-6147.

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