MARINA BIRMAN AUD
NPI 1447185095
Audiologist in Castro Valley, CA

NPI Status: Active since June 16, 2026

Contact Information

15400 FOOTHILL BLVD
CASTRO VALLEY, CA
ZIP 94578
Phone: (510) 895-4533
Fax: (510) 895-4571

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  • Individual
  • Female
  • Audiologist

About MARINA BIRMAN

This page provides the complete NPI Profile along with additional information for Marina Birman, a provider established in Castro Valley, California with a medical specialization in Audiologist. The healthcare provider is registered in the NPI registry with number 1447185095 assigned on June 2026. The practitioner's primary taxonomy code is 231H00000X with license number AU988 (CA). The provider is registered as an individual and her NPI record was last updated June 2026. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization.

NPI
1447185095
Provider Name
MARINA BIRMAN AUD
Gender
Female
Entity Type
Individual
Location Address
15400 FOOTHILL BLVD CASTRO VALLEY, CA 94578
Location Phone
(510) 895-4533
Location Fax
(510) 895-4571
Mailing Address
14 TEODORA CT MORAGA, CA 94556
Mailing Phone
(925) 963-6444
Is Sole Proprietor?
Yes
Enumeration Date
06-16-2026
Last Update Date
06-16-2026
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Audiologists like Marina Birman 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.
AU988
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.

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

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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 1447185095, 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
4
Unchanged
Pos 3
4
Doubled → 8
Pos 4
7
Unchanged
Pos 5
1
Doubled → 2
Pos 6
8
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
0
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 4 → 8 1 → 2 5 → 10 → 1 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 8 + 7 + 2 + 8 + 1 + 0 + 0 + 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 1447185095.

Other Providers at the Same Location


The following 19 providers are registered at the same or a nearby location.

Occupational Therapist (Neurorehabilitation)
15400 FOOTHILL BLVD
SAN LEANDRO, CA 94578
Internal Medicine (Geriatric Medicine)
15400 FOOTHILL BLVD
SAN LEANDRO, CA 94578
Physician Assistant
15400 FOOTHILL BLVD
SAN LEANDRO, CA 94578
Nurse Practitioner
15400 FOOTHILL BLVD, ALAMEDA COUNTY MEDICAL CENTER
SAN LEANDRO, CA 94578
Social Worker (Clinical)
15400 FOOTHILL BLVD
SAN LEANDRO, CA 94578
Registered Nurse (Case Management)
15400 FOOTHILL BLVD
SAN LEANDRO, CA 94578
Registered Nurse (Case Management)
15400 FOOTHILL BLVD
SAN LEANDRO, CA 94578
Registered Nurse (Case Management)
15400 FOOTHILL BLVD
SAN LEANDRO, CA 94578
Social Worker (Clinical)
15400 FOOTHILL BLVD
SAN LEANDRO, CA 94578
Case Manager/Care Coordinator
15400 FOOTHILL BLVD, BLDG C ROOM 133
SAN LEANDRO, CA 94578
Social Worker (Clinical)
15400 FOOTHILL BLVD, BLG C-1
SAN LEANDRO, CA 94578
Physical Therapist
15400 FOOTHILL BLVD
SAN LEANDRO, CA 94578
Psychiatry & Neurology (Neurology)
15400 FOOTHILL BLVD
SAN LEANDRO, CA 94578
Clinic/Center (Multi-Specialty)
15400 FOOTHILL BLVD
SAN LEANDRO, CA 94578
Pediatrics
15400 FOOTHILL BLVD
SAN LEANDRO, CA 94578
Occupational Therapist
15400 FOOTHILL BLVD
SAN LEANDRO, CA 94578
Psychiatry & Neurology (Psychiatry)
15400 FOOTHILL BLVD
SAN LEANDRO, CA 94578
Assisted Living Facility
15400 FOOTHILL BLVD
SAN LEANDRO, CA 94578
Case Manager/Care Coordinator
15400 FOOTHILL BLVD, BLDG E
SAN LEANDRO, CA 94578

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1447185095, enumerated as an "individual" on June 16, 2026.

The provider is located at 15400 FOOTHILL BLVD CASTRO VALLEY, CA 94578 and the phone number is (510) 895-4533.

Audiologist with taxonomy code 231H00000X.