JUSTIN CHA AUD
NPI 1790356582
Audiologist-Hearing Aid Fitter in San Francisco, CA

NPI Status: Active since July 02, 2021

Contact Information

155 5TH ST STE 250
SAN FRANCISCO, CA
ZIP 94103
Phone: (415) 780-2001

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  • Individual
  • Male
  • Audiologist-Hearing Aid Fitter

About JUSTIN CHA

This page provides the complete NPI Profile along with additional information for Justin Cha, a provider established in San Francisco, California with a medical specialization in Audiologist-hearing Aid Fitter. The healthcare provider is registered in the NPI registry with number 1790356582 assigned on July 2021. The practitioner's primary taxonomy code is 237600000X. The provider is registered as an individual and his NPI record was last updated 2 years ago.

NPI
1790356582
Provider Name
JUSTIN CHA AUD
Gender
Male
Entity Type
Individual
Location Address
155 5TH ST STE 250 SAN FRANCISCO, CA 94103
Location Phone
(415) 780-2001
Mailing Address
155 5TH ST STE 250 SAN FRANCISCO, CA 94103
Mailing Phone
(415) 780-2001
Is Sole Proprietor?
No
Enumeration Date
07-02-2021
Last Update Date
08-20-2024
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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
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.

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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 1790356582, we treat the final digit (2) 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).

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
7
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
0
Unchanged
Pos 5
3
Doubled → 6
Pos 6
5
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
5
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
2
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 9 → 18 → 9 3 → 6 6 → 12 → 3 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 8 + 0 + 6 + 5 + 1 + 2 + 5 + 1 + 6 + 24 = 68

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

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1790356582.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1790356582, enumerated as an "individual" on July 02, 2021.

The provider is located at 155 5TH ST STE 250 SAN FRANCISCO, CA 94103 and the phone number is (415) 780-2001.

Audiologist-Hearing Aid Fitter with taxonomy code 237600000X.