JOANNA LYNN CHAN
NPI 1013094242
Audiologist in Concord, CA

NPI Status: Active since November 01, 2006

Contact Information

2415 HIGH SCHOOL AVE
#300
CONCORD, CA
ZIP 94520
Phone: (925) 616-8101

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  • Individual
  • Female
  • Audiologist

About JOANNA CHAN

This page provides the complete NPI Profile along with additional information for Joanna Chan, a provider established in Concord, California with a medical specialization in Audiologist. The healthcare provider is registered in the NPI registry with number 1013094242 assigned on November 2006. The practitioner's primary taxonomy code is 231H00000X with license number AU2360 (CA). The provider is registered as an individual and her NPI record was last updated 18 years ago.

NPI
1013094242
Provider Name
JOANNA LYNN CHAN
Gender
Female
Entity Type
Individual
Location Address
2415 HIGH SCHOOL AVE #300 CONCORD, CA 94520
Location Phone
(925) 616-8101
Mailing Address
4031 LINCOLN AVE OAKLAND, CA 94602
Mailing Phone
(510) 531-9735
Is Sole Proprietor?
No
Enumeration Date
11-01-2006
Last Update Date
03-06-2008
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Audiologists like Joanna Chan are experts in diagnosing issues related to various parts of the ear, including the outer, middle, and inner ear. They can identify conditions like vertigo, balance issues, hearing loss, and tinnitus, offering treatments based on a patient’s specific condition and severity. These specialists use specialized equipment to assess the cause and extent of hearing impairments, employing tools like audiometers to evaluate the range of frequencies and volumes a person can hear. In addition, audiologists counsel patients and their families, providing advice on managing and adapting to hearing loss.

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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

Taxonomy Code
231H00000X
Type
Speech, Language and Hearing Service Providers
License No.
AU2360
License State
CA
Taxonomy Description
(1) A specialist in evaluation, habilitation and rehabilitation of those whose communication disorders center in whole or in part in hearing function. Audiologists are autonomous professionals who identify, assess, and manage disorders of the auditory, balance and other neural systems. Audiologists provide audiological (aural) rehabilitation to children and adults across the entire age span. Audiologists select, fit and dispense amplification systems such as hearing aids and related devices. (2) An audiologist is a person qualified by a master's degree in audiology, licensed by the state, where applicable, and practicing within the scope of that license. Audiologists evaluate and treat patients with impaired hearing. They plan, direct and conduct rehabilitative programs with audiotry substitutional devises (hearing aids) and other therapy.

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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 1013094242, 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 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
0
Unchanged
Pos 3
1
Doubled → 2
Pos 4
3
Unchanged
Pos 5
0
Doubled → 0
Pos 6
9
Unchanged
Pos 7
4
Doubled → 8
Pos 8
2
Unchanged
Pos 9
4
Doubled → 8
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 1 → 2 0 → 0 4 → 8 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 2 + 3 + 0 + 9 + 8 + 2 + 8 + 24 = 58

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

The next multiple of ten after 58 is 60. The difference is the calculated check digit.

60 - 58 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1013094242.

Other Providers at the Same Location


The following 12 providers are registered at the same or a nearby location.

Internal Medicine
2415 HIGH SCHOOL AVE, SUITE #800
CONCORD, CA 94520
Internal Medicine
2415 HIGH SCHOOL AVE, SUITE 700
CONCORD, CA 94520
Internal Medicine (Gastroenterology)
2415 HIGH SCHOOL AVE, SUITE 100
CONCORD, CA 94520
Internal Medicine (Gastroenterology)
2415 HIGH SCHOOL AVE, SUITE 100
CONCORD, CA 94520
Internal Medicine
2415 HIGH SCHOOL AVE, SUITE 800
CONCORD, CA 94520
Nurse Practitioner (Family)
2415 HIGH SCHOOL AVE, SUITE 300
CONCORD, CA 94520
Physician Assistant
2415 HIGH SCHOOL AVE
CONCORD, CA 94520
Internal Medicine
2415 HIGH SCHOOL AVE, SUITE 800
CONCORD, CA 94520
Family Medicine
2415 HIGH SCHOOL AVE, SUITE 800
CONCORD, CA 94520
Audiologist-Hearing Aid Fitter
2415 HIGH SCHOOL AVE, SUITE 300
CONCORD, CA 94520
Audiologist-Hearing Aid Fitter
2415 HIGH SCHOOL AVE, SUITE 300
CONCORD, CA 94520
Audiologist-Hearing Aid Fitter
2415 HIGH SCHOOL AVE, SUITE 300
CONCORD, CA 94520

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1013094242, enumerated as an "individual" on November 01, 2006.

The provider is located at 2415 HIGH SCHOOL AVE #300 CONCORD, CA 94520 and the phone number is (925) 616-8101.

Audiologist with taxonomy code 231H00000X.