ILANIT MARZOUK AUD
NPI 1285666495
Hearing Instrument Specialist in Lakewood, CA

NPI Status: Active since July 07, 2006

Contact Information

3650 SOUTH ST
SUITE 208
LAKEWOOD, CA
ZIP 90712
Phone: (562) 790-8403

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  • Individual
  • Female
  • Hearing Instrument Specialist

About ILANIT MARZOUK

This page provides the complete NPI Profile along with additional information for Ilanit Marzouk, a provider established in Lakewood, California with a medical specialization in Hearing Instrument Specialist. The healthcare provider is registered in the NPI registry with number 1285666495 assigned on July 2006. The practitioner's primary taxonomy code is 237700000X with license number HA4178 (CA). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1285666495
Provider Name
ILANIT MARZOUK AUD
Gender
Female
Entity Type
Individual
Location Address
3650 SOUTH ST SUITE 208 LAKEWOOD, CA 90712
Location Phone
(562) 790-8403
Mailing Address
5000 CHESHIRE LN N PLYMOUTH, MN 55446
Mailing Phone
(888) 333-9152
Is Sole Proprietor?
No
Enumeration Date
07-07-2006
Last Update Date
09-11-2025
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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

Hearing Instrument Specialist

Taxonomy Code
237700000X
Type
Speech, Language and Hearing Service Providers
License No.
HA4178
License State
CA
Taxonomy Description
Individuals who test hearing for the selection, adaptation, fitting, adjusting, servicing, and sale of hearing aids. Hearing Instrument Specialist is a designation provided individuals who qualify by the National Hearing Aid Society

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)
1231H00000XSpeech, Language and Hearing Service Providers

Audiologist

AU2333 (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 1285666495, 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
1
Doubled → 2
Pos 2
2
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
5
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
6
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
4
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
5
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 8 → 16 → 7 6 → 12 → 3 6 → 12 → 3 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 1 + 6 + 5 + 1 + 2 + 6 + 1 + 2 + 4 + 1 + 8 + 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 1285666495.

Other Providers at the Same Location


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

Family Medicine
3650 SOUTH ST, STE 204
LAKEWOOD, CA 90712
Urology
3650 SOUTH ST, SUITE 408
LAKEWOOD, CA 90712
Urology
3650 SOUTH ST, #408
LAKEWOOD, CA 90712
Internal Medicine (Cardiovascular Disease)
3650 SOUTH ST, SUITE 110
LAKEWOOD, CA 90712
Internal Medicine (Pulmonary Disease)
3650 SOUTH ST, SUITE 308
LAKEWOOD, CA 90712
Surgery
3650 SOUTH ST, SUITE 412
LAKEWOOD, CA 90712
Family Medicine
3650 SOUTH ST, SUITE 103
LAKEWOOD, CA 90712
Orthopaedic Surgery
3650 SOUTH ST, SUITE #411
LAKEWOOD, CA 90712
Pediatrics
3650 SOUTH ST, SUITE 209
LAKEWOOD, CA 90712
Pediatrics
3650 SOUTH ST, SUITE 405
LAKEWOOD, CA 90712
Internal Medicine (Cardiovascular Disease)
3650 SOUTH ST, SUITE 210
LAKEWOOD, CA 90712
Internal Medicine (Pulmonary Disease)
3650 SOUTH ST, SUITE 308
LAKEWOOD, CA 90712
Internal Medicine (Pulmonary Disease)
3650 SOUTH ST, SUITE 308
LAKEWOOD, CA 90712
Family Medicine
3650 SOUTH ST, SUITE 412
LAKEWOOD, CA 90712
Internal Medicine (Endocrinology, Diabetes & Metabolism)
3650 SOUTH ST, SUITE 208
LAKEWOOD, CA 90712
Internal Medicine
3650 SOUTH ST, SUITE110
LAKEWOOD, CA 90712
Surgery
3650 SOUTH ST, SUITE 206
LAKEWOOD, CA 90712
Internal Medicine (Nephrology)
3650 SOUTH ST, SUITE 101
LAKEWOOD, CA 90712
Thoracic Surgery (Cardiothoracic Vascular Surgery)
3650 SOUTH ST, SUITE 206
LAKEWOOD, CA 90712
Thoracic Surgery (Cardiothoracic Vascular Surgery)
3650 SOUTH ST, STE 206
LAKEWOOD, CA 90712

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1285666495, enumerated as an "individual" on July 07, 2006.

The provider is located at 3650 SOUTH ST SUITE 208 LAKEWOOD, CA 90712 and the phone number is (562) 790-8403.

Hearing Instrument Specialist with taxonomy code 237700000X.