SANDEE ELISABET CASTANEDA AUD
NPI 1316894157
Audiologist-Hearing Aid Fitter in Los Angeles, CA

NPI Status: Active since March 11, 2026

Contact Information

1450 SAN PABLO ST STE 5100
LOS ANGELES, CA
ZIP 90033
Phone: (323) 442-5790

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

Individual
Female
Audiologist-Hearing Aid Fitter

About SANDEE CASTANEDA

This page provides the complete NPI Profile along with additional information for Sandee Castaneda, a provider established in Los Angeles, California with a medical specialization in Audiologist-hearing Aid Fitter. The healthcare provider is registered in the NPI registry with number 1316894157 assigned on March 2026. The practitioner's primary taxonomy code is 237600000X with license number 4027 (CA). The provider is registered as an individual and her NPI record was last updated March 2026.

NPI: 1316894157
Provider Name: SANDEE ELISABET CASTANEDA AUD
Gender: Female
Entity Type: Individual
Location Address: 1450 SAN PABLO ST STE 5100 LOS ANGELES, CA 90033
Location Phone: (323) 442-5790
Mailing Address: 1450 SAN PABLO ST STE 5100 LOS ANGELES, CA 90033
Is Sole Proprietor?: No
Enumeration Date: 03-11-2026
Last Update Date: 03-11-2026
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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: Audiologist-Hearing Aid Fitter
Taxonomy Code: 237600000X
Type: Speech, Language and Hearing Service Providers
License No.: 4027
License State: CA
Taxonomy Description: An audiologist/hearing aid fitter is the professional who specializes in evaluating and treating people with hearing loss, conducts a wide variety of tests to determine the exact nature of an individual's hearing problem, presents a variety of treatment options to patients, dispenses and fits hearing aids, administers tests of balance to evaluate dizziness and provides hearing rehabilitation training. This classification should be used where individuals are licensed as audiologist-hearing aid fitters as opposed to states that license individuals as audiologists.

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 1316894157, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).

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 → 2

Pos 4

Unchanged

Pos 5

Doubled → 16 → 1 + 6

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 1 → 2 8 → 16 → 7 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 + 3 + 2 + 6 + 1 + 6 + 9 + 8 + 1 + 1 + 0 + 24 = 63

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

The next multiple of ten after 63 is 70. The difference is the calculated check digit.

70 - 63 = 7

This NPI is valid

The calculated check digit is 7, which matches the last digit of 1316894157.