SARA MERGENTHAL AUD
NPI 1336923002
Audiologist in Fredericksburg, VA

NPI Status: Active since August 23, 2023

Contact Information

5103 W COMMONS CT
FREDERICKSBURG, VA
ZIP 22408
Phone: (540) 891-1909

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  • Individual
  • Female
  • Audiologist

About SARA MERGENTHAL

This page provides the complete NPI Profile along with additional information for Sara Mergenthal, a provider established in Fredericksburg, Virginia with a medical specialization in Audiologist. The healthcare provider is registered in the NPI registry with number 1336923002 assigned on August 2023. The practitioner's primary taxonomy code is 231H00000X with license number 2201001942 (VA). The provider is registered as an individual and her NPI record was last updated 3 years ago.

NPI
1336923002
Provider Name
SARA MERGENTHAL AUD
Gender
Female
Entity Type
Individual
Location Address
5103 W COMMONS CT FREDERICKSBURG, VA 22408
Location Phone
(540) 891-1909
Mailing Address
5103 W COMMONS CT FREDERICKSBURG, VA 22408
Mailing Phone
(540) 891-1909
Is Sole Proprietor?
No
Enumeration Date
08-23-2023
Last Update Date
08-23-2023
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Audiologists like Sara Mergenthal 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.
2201001942
License State
VA
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.

Reviews for SARA MERGENTHAL AUD

  • 5 out of 5 stars - Review by William ***** on October 31, 2025

    Dr. Mergenthal is a very knowledgeable and dedicated professional, who takes her time with the patient and seeks to provide the best care possible, through a thorough examination and understanding of the problem. She works with the patient to achieve the best possible results to improving the quality of life through improved hearing. I would highly recommend her as very caring and dedicated.

  • 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 1336923002, 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
    3
    Unchanged
    Pos 3
    3
    Doubled → 6
    Pos 4
    6
    Unchanged
    Pos 5
    9
    Doubled → 18 → 1 + 8
    Pos 6
    2
    Unchanged
    Pos 7
    3
    Doubled → 6
    Pos 8
    0
    Unchanged
    Pos 9
    0
    Doubled → 0
    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 3 → 6 9 → 18 → 9 3 → 6 0 → 0

    Step 2: Add all digits plus the NPI constant

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

    2 + 3 + 6 + 6 + 1 + 8 + 2 + 6 + 0 + 0 + 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 1336923002.

    Frequently Asked Questions

    The NPI number assigned to this healthcare provider is 1336923002, enumerated as an "individual" on August 23, 2023.

    The provider is located at 5103 W COMMONS CT FREDERICKSBURG, VA 22408 and the phone number is (540) 891-1909.

    Audiologist with taxonomy code 231H00000X.