AMY J RIETZ AUD
NPI 1336135664
Audiologist-Hearing Aid Fitter in Appleton, WI

NPI Status: Active since September 22, 2005

Contact Information

1501 S MADISON ST
APPLETON, WI
ZIP 54915
Phone: (920) 730-4443

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  • Individual
  • Female
  • Audiologist-Hearing Aid Fitter

About AMY RIETZ

This page provides the complete NPI Profile along with additional information for Amy Rietz, a provider established in Appleton, Wisconsin with a medical specialization in Audiologist-hearing Aid Fitter. The healthcare provider is registered in the NPI registry with number 1336135664 assigned on September 2005. The practitioner's primary taxonomy code is 237600000X with license number 302 (WI). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1336135664
Provider Name
AMY J RIETZ AUD
Gender
Female
Entity Type
Individual
Location Address
1501 S MADISON ST APPLETON, WI 54915
Location Phone
(920) 730-4443
Mailing Address
1501 S MADISON ST APPLETON, WI 54915
Mailing Phone
(920) 730-4443
Is Sole Proprietor?
Yes
Enumeration Date
09-22-2005
Last Update Date
09-11-2025
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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.
302
License State
WI
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.

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)
1231H00000XSpeech, Language and Hearing Service Providers

Audiologist

302 (WI)

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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 1336135664, 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 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
3
Unchanged
Pos 3
3
Doubled → 6
Pos 4
6
Unchanged
Pos 5
1
Doubled → 2
Pos 6
3
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
6
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
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 3 → 6 1 → 2 5 → 10 → 1 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 6 + 6 + 2 + 3 + 1 + 0 + 6 + 1 + 2 + 24 = 56

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

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1336135664.

Other Providers at the Same Location


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

Otolaryngology
1501 S MADISON ST
APPLETON, WI 54915
Internal Medicine
1501 S MADISON ST
APPLETON, WI 54915
Physician Assistant
1501 S MADISON ST
APPLETON, WI 54915
Audiologist
1501 S MADISON ST
APPLETON, WI 54915
Audiologist
1501 S MADISON ST
APPLETON, WI 54915
Nurse Practitioner
1501 S MADISON ST
APPLETON, WI 54915
Physician Assistant
1501 S MADISON ST
APPLETON, WI 54915
Nurse Practitioner (Adult Health)
1501 S MADISON ST
APPLETON, WI 54915
Nurse Practitioner (Family)
1501 S MADISON ST
APPLETON, WI 54915
Nurse Practitioner
1501 S MADISON ST, SURGERY DEPT
APPLETON, WI 54915
Nurse Practitioner (Adult Health)
1501 S MADISON ST, SURGERY DEPARTMENT
APPLETON, WI 54915
Durable Medical Equipment & Medical Supplies
1501 S MADISON ST
APPLETON, WI 54915
Otolaryngology (Otolaryngology/Facial Plastic Surgery)
1501 S MADISON ST
APPLETON, WI 54915
Surgery
1501 S MADISON ST
APPLETON, WI 54915
Nurse Practitioner
1501 S MADISON ST
APPLETON, WI 54915
Internal Medicine
1501 S MADISON ST
APPLETON, WI 54915
Nurse Practitioner
1501 S MADISON ST
APPLETON, WI 54915
Surgery
1501 S MADISON ST
APPLETON, WI 54915
Surgery
1501 S MADISON ST
APPLETON, WI 54915
Clinic/Center (Multi-Specialty)
1501 S MADISON ST
APPLETON, WI 54915

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1336135664, enumerated as an "individual" on September 22, 2005.

The provider is located at 1501 S MADISON ST APPLETON, WI 54915 and the phone number is (920) 730-4443.

Audiologist-Hearing Aid Fitter with taxonomy code 237600000X.