JOHN DANIEL SHAFER JR. B.S., HIS
NPI 1811287246
Audiologist-Hearing Aid Fitter in San Antonio, TX

NPI Status: Active since April 19, 2011

Contact Information

400 N LOOP 1604 E
SUITE 210
SAN ANTONIO, TX
ZIP 78232
Phone: (210) 402-6141
Fax: (210) 402-6990

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  • Individual
  • Male
  • Audiologist-Hearing Aid Fitter

About JOHN SHAFER

This page provides the complete NPI Profile along with additional information for John Shafer, a provider established in San Antonio, Texas with a medical specialization in Audiologist-hearing Aid Fitter. The healthcare provider is registered in the NPI registry with number 1811287246 assigned on April 2011. The practitioner's primary taxonomy code is 237600000X with license number 80438 (TX). The provider is registered as an individual and his NPI record was last updated 15 years ago.

NPI
1811287246
Provider Name
JOHN DANIEL SHAFER JR. B.S., HIS
Gender
Male
Entity Type
Individual
Location Address
400 N LOOP 1604 E SUITE 210 SAN ANTONIO, TX 78232
Location Phone
(210) 402-6141
Location Fax
(210) 402-6990
Mailing Address
400 N LOOP 1604 E SUITE 210 SAN ANTONIO, TX 78232
Mailing Phone
(210) 402-6141
Mailing Fax
(210) 402-6990
Is Sole Proprietor?
No
Enumeration Date
04-19-2011
Last Update Date
04-19-2011
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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-Hearing Aid Fitter

Taxonomy Code
237600000X
Type
Speech, Language and Hearing Service Providers
License No.
80438
License State
TX
Taxonomy Description
An audiologist/hearing aid fitter is the professional who specializes in evaluating and treating people with hearing loss, conducts a wide variety of tests to determine the exact nature of an individual's hearing problem, presents a variety of treatment options to patients, dispenses and fits hearing aids, administers tests of balance to evaluate dizziness and provides hearing rehabilitation training. This classification should be used where individuals are licensed as audiologist-hearing aid fitters as opposed to states that license individuals as audiologists.

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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 1811287246, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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
1
Doubled → 2
Pos 4
1
Unchanged
Pos 5
2
Doubled → 4
Pos 6
8
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
2
Unchanged
Pos 9
4
Doubled → 8
Check
6
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 2 → 4 7 → 14 → 5 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 2 + 1 + 4 + 8 + 1 + 4 + 2 + 8 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1811287246.

Other Providers at the Same Location


The following 16 providers are registered at the same or a nearby location.

Dentist (General Practice)
400 N LOOP 1604 E, STE 315
SAN ANTONIO, TX 78232
Dentist (General Practice)
400 N LOOP 1604 E, SUITE #320
SAN ANTONIO, TX 78232
Psychiatry & Neurology (Psychiatry)
400 N LOOP 1604 E, SUITE 180
SAN ANTONIO, TX 78232
Family Medicine
400 N LOOP 1604 E, SUITE 345
SAN ANTONIO, TX 78232
Dentist (General Practice)
400 N LOOP 1604 E, STE 320
SAN ANTONIO, TX 78232
Dietitian, Registered
400 N LOOP 1604 E, SUITE 175
SAN ANTONIO, TX 78232
Hearing Instrument Specialist
400 N LOOP 1604 E, SUITE 210
SAN ANTONIO, TX 78232
Counselor (Professional)
400 N LOOP 1604 E, SUITE 175
SAN ANTONIO, TX 78232
Dietitian, Registered
400 N LOOP 1604 E, SUITE 175
SAN ANTONIO, TX 78232
Internal Medicine
400 N LOOP 1604 E, SUITE 330
SAN ANTONIO, TX 78232
Clinic/Center (Mental Health (Including Community Mental Health Center))
400 N LOOP 1604 E, SUITE 125
SAN ANTONIO, TX 78232
Dietitian, Registered
400 N LOOP 1604 E
SAN ANTONIO, TX 78232
Marriage & Family Therapist
400 N LOOP 1604 E, SUITE 175
SAN ANTONIO, TX 78232
Dietitian, Registered
400 N LOOP 1604 E
SAN ANTONIO, TX 78232
Dietitian, Registered
400 N LOOP 1604 E, SUITE 175
SAN ANTONIO, TX 78232
Dentist (General Practice)
400 N LOOP 1604 E, SUITE 205
SAN ANTONIO, TX 78232

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1811287246, enumerated as an "individual" on April 19, 2011.

The provider is located at 400 N LOOP 1604 E SUITE 210 SAN ANTONIO, TX 78232 and the phone number is (210) 402-6141.

Audiologist-Hearing Aid Fitter with taxonomy code 237600000X.