VINCENT JOHN DEFRANK AU.D.
NPI 1881409084
Audiologist in Fresno, CA

NPI Status: Active since February 12, 2025

Contact Information

2615 E CLINTON AVE
FRESNO, CA
ZIP 93703
Phone: (559) 225-6100

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  • Individual
  • Male
  • Audiologist

About VINCENT DEFRANK

This page provides the complete NPI Profile along with additional information for Vincent Defrank, a provider established in Fresno, California with a medical specialization in Audiologist. The healthcare provider is registered in the NPI registry with number 1881409084 assigned on February 2025. The practitioner's primary taxonomy code is 231H00000X with license number 31121 (OR). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1881409084
Provider Name
VINCENT JOHN DEFRANK AU.D.
Gender
Male
Entity Type
Individual
Location Address
2615 E CLINTON AVE FRESNO, CA 93703
Location Phone
(559) 225-6100
Mailing Address
2615 E CLINTON AVE FRESNO, CA 93703
Mailing Phone
(559) 225-6100
Is Sole Proprietor?
No
Enumeration Date
02-12-2025
Last Update Date
02-12-2025
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Audiologists like Vincent Defrank 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.

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

Audiologist

Taxonomy Code
231H00000X
Type
Speech, Language and Hearing Service Providers
License No.
31121
License State
OR
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 1881409084, we treat the final digit (4) 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).

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

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 6 + 1 + 8 + 0 + 1 + 8 + 0 + 1 + 6 + 24 = 66

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

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1881409084.

Other Providers at the Same Location


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

Nurse Practitioner (Family)
2615 E CLINTON AVE, VA MEDICAL CENTER SURGICAL SERVICES
FRESNO, CA 93703
Nurse Practitioner (Family)
2615 E CLINTON AVE
FRESNO, CA 93703
Nurse Practitioner (Family)
2615 E CLINTON AVE, SURGICAL SECTION #112
FRESNO, CA 93703
Internal Medicine
2615 E CLINTON AVE
FRESNO, CA 93703
Nurse Practitioner
2615 E CLINTON AVE
FRESNO, CA 93703
Internal Medicine
2615 E CLINTON AVE
FRESNO, CA 93703
Internal Medicine (Cardiovascular Disease)
2615 E CLINTON AVE, E224
FRESNO, CA 93703
Nurse Practitioner (Family)
2615 E CLINTON AVE, MAIL STOP 127
FRESNO, CA 93703
Nurse Practitioner (Adult Health)
2615 E CLINTON AVE
FRESNO, CA 93703
Dietitian, Registered
2615 E CLINTON AVE, DEPT OF NUTRITION AND FOOD SERVICE, VACCHCS
FRESNO, CA 93703
General Acute Care Hospital
2615 E CLINTON AVE
FRESNO, CA 93703
Registered Nurse (Ambulatory Care)
2615 E CLINTON AVE
FRESNO, CA 93703
Clinical Neuropsychologist
2615 E CLINTON AVE
FRESNO, CA 93703
Dentist (General Practice)
2615 E CLINTON AVE
FRESNO, CA 93703
Nurse Practitioner (Adult Health)
2615 E CLINTON AVE
FRESNO, CA 93703
Pharmacist
2615 E CLINTON AVE, PHARMACY DEPARTMENT
FRESNO, CA 93703
Pharmacist
2615 E CLINTON AVE
FRESNO, CA 93703
Pharmacist
2615 E CLINTON AVE
FRESNO, CA 93703
Pharmacist
2615 E CLINTON AVE
FRESNO, CA 93703
Internal Medicine
2615 E CLINTON AVE
FRESNO, CA 93703

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1881409084, enumerated as an "individual" on February 12, 2025.

The provider is located at 2615 E CLINTON AVE FRESNO, CA 93703 and the phone number is (559) 225-6100.

Audiologist with taxonomy code 231H00000X.