WILLIAM BARTON MAHAN HAS-BC 1808
NPI 1578899555
Hearing Instrument Specialist in The Villages, FL

NPI Status: Active since October 26, 2009

Contact Information

713 KRISTINE WAY
THE VILLAGES, FL
ZIP 32163
Phone: (352) 751-3400

Get Directions Write a Review

  • Individual
  • Male
  • Hearing Instrument Specialist

About WILLIAM MAHAN

This page provides the complete NPI Profile along with additional information for William Mahan, a provider established in The Villages, Florida with a medical specialization in Hearing Instrument Specialist. The healthcare provider is registered in the NPI registry with number 1578899555 assigned on October 2009. The practitioner's primary taxonomy code is 237700000X with license number AS1808 (FL). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1578899555
Provider Name
WILLIAM BARTON MAHAN HAS-BC 1808
Gender
Male
Entity Type
Individual
Location Address
713 KRISTINE WAY THE VILLAGES, FL 32163
Location Phone
(352) 751-3400
Mailing Address
713 KRISTINE WAY THE VILLAGES, FL 32163
Mailing Phone
(352) 751-3400
Is Sole Proprietor?
No
Enumeration Date
10-26-2009
Last Update Date
04-08-2025
Code Navigator

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

Hearing Instrument Specialist

Taxonomy Code
237700000X
Type
Speech, Language and Hearing Service Providers
License No.
AS1808
License State
FL
Taxonomy Description
Individuals who test hearing for the selection, adaptation, fitting, adjusting, servicing, and sale of hearing aids. Hearing Instrument Specialist is a designation provided individuals who qualify by the National Hearing Aid Society

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1174400000XOther Service Providers

Specialist

264554716 (FL)

Reviews for WILLIAM BARTON MAHAN HAS-BC 1808

There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.

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 1578899555, 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 75. The final step is to find the difference between that total and the next multiple of ten (80 - 75 = 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
5
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
8
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
9
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
5
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
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 7 → 14 → 5 8 → 16 → 7 9 → 18 → 9 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 4 + 8 + 1 + 6 + 9 + 1 + 8 + 5 + 1 + 0 + 24 = 75

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

The next multiple of ten after 75 is 80. The difference is the calculated check digit.

80 - 75 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1578899555.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1578899555, enumerated as an "individual" on October 26, 2009.

The provider is located at 713 KRISTINE WAY THE VILLAGES, FL 32163 and the phone number is (352) 751-3400.

Hearing Instrument Specialist with taxonomy code 237700000X.