DR. SUZANNE OVANESYAN
NPI 1558164855
Psychologist - Adult Development & Aging in Downey, CA

Q: What is the provider's specialty?

The provider's specialty is Psychologist with taxonomy code 103TA0700X and a focus in Adult Development & Aging.

NPI Status: Active since March 31, 2025

Contact Information

10800 PARAMOUNT BLVD STE 306
DOWNEY, CA
ZIP 90241
Phone: (562) 821-1491

NPPES record last updated: March 31, 2025. Verified against the NPPES registry weekly; last sync: July 12, 2026.

Table of Contents

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

Individual
Female
Psychologist
Adult Development & Aging

About SUZANNE OVANESYAN

This page provides the complete NPI Profile along with additional information for Suzanne Ovanesyan, a provider established in Downey, California with a medical specialization in Psychologist, focusing in adult development & aging . The healthcare provider is registered in the NPI registry with number 1558164855 assigned on March 2025. The practitioner's primary taxonomy code is 103TA0700X. The provider is registered as an individual and her NPI record was last updated one year ago.

NPI: 1558164855
Provider Name: DR. SUZANNE OVANESYAN
Gender: Female
Entity Type: Individual
Location Address: 10800 PARAMOUNT BLVD STE 306 DOWNEY, CA 90241
Location Phone: (562) 821-1491
Mailing Address: 10800 PARAMOUNT BLVD STE 306 DOWNEY, CA 90241
Is Sole Proprietor?: No
Enumeration Date: 03-31-2025
Last Update Date: 03-31-2025
Code Navigator

Location Map

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 Adult Development & Aging
Taxonomy Code: 103TA0700X
Type: Behavioral Health & Social Service Providers
Taxonomy Description: A psychologist who specializes in geropsychology, which applies the knowledge and methods of psychology to understanding and helping older persons and their families to maintain well-being, overcome problems and achieve maximum potential during later life. Professional geropsychology appreciates the wide diversity among older adults, the complex ethical issues that can arise in geriatric practice and the importance of interdisciplinary models of care.

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 1558164855, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).

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 → 10 → 1 + 0

Pos 4

Unchanged

Pos 5

Doubled → 2

Pos 6

Unchanged

Pos 7

Doubled → 8

Pos 8

Unchanged

Pos 9

Doubled → 10 → 1 + 0

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 5 → 10 → 1 1 → 2 4 → 8 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 0 + 8 + 2 + 6 + 8 + 8 + 1 + 0 + 24 = 65

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

The next multiple of ten after 65 is 70. The difference is the calculated check digit.

70 - 65 = 5

This NPI is valid

The calculated check digit is 5, which matches the last digit of 1558164855.