DAWN TAMMEN O.N.C. R.N. F.A.
NPI 1821415886
Specialist/Technologist, Other - Surgical Assistant in Wisconsin Rapids, WI

Q: What is the provider's specialty?

The provider's specialty is Specialist/Technologist, Other with taxonomy code 246ZC0007X and a focus in Surgical Assistant.

NPI Status: Active since March 27, 2014

Contact Information

140 24TH ST S
WISCONSIN RAPIDS, WI
ZIP 54494
Phone: (715) 424-1881
Fax: (715) 423-1602

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NPPES record last updated: February 10, 2021. Verified against the NPPES registry weekly; last sync: July 12, 2026.

Table of Contents

NPI Profile Information
Primary Taxonomy
Secondary Taxonomies
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Female
Specialist/Technologist, Other
Surgical Assistant

About DAWN TAMMEN

This page provides the complete NPI Profile along with additional information for Dawn Tammen, a provider established in Wisconsin Rapids, Wisconsin with a medical specialization in Specialist/technologist, Other, focusing in surgical assistant . The healthcare provider is registered in the NPI registry with number 1821415886 assigned on March 2014. The practitioner's primary taxonomy code is 246ZC0007X with license number 136388-30 (WI). The provider is registered as an individual and her NPI record was last updated 5 years ago.

NPI: 1821415886
Provider Name: DAWN TAMMEN O.N.C. R.N. F.A.
Gender: Female
Entity Type: Individual
Location Address: 140 24TH ST S WISCONSIN RAPIDS, WI 54494
Location Phone: (715) 424-1881
Location Fax: (715) 423-1602
Mailing Address: 140 24TH ST S WISCONSIN RAPIDS, WI 54494
Mailing Phone: (715) 424-1881
Mailing Fax: (715) 423-1602
Is Sole Proprietor?: No
Enumeration Date: 03-27-2014
Last Update Date: 02-10-2021
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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: Specialist/Technologist, Other Surgical Assistant
Taxonomy Code: 246ZC0007X
Type: Technologists, Technicians & Other Technical Service Providers
License No.: 136388-30
License State: WI
Taxonomy Description: A surgical assistant is a skilled practitioner who has undergone formalized education and training as a surgical assistant. The surgical assistant performs surgical functions that include, but are not limited to: retracting, manipulating, suturing, clamping, cauterizing, litigating, and tying tissue; suctioning, irrigating and sponging; positioning the patient; closure of body planes and skin; and participating in hemostasis and volume replacement. Surgical assistants are certified and registered or licensed by the state, or, in states without licensure, certified as surgical assistants by completing appropriate education and training.

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)
1	163WR0006X	Nursing Service Providers	Registered Nurse Registered Nurse First Assistant	136388-30 (WI)
2	163WX0800X	Nursing Service Providers	Registered Nurse Orthopedic	136388-30 (WI)

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 1821415886, 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 4

Pos 4

Unchanged

Pos 5

Doubled → 8

Pos 6

Unchanged

Pos 7

Doubled → 10 → 1 + 0

Pos 8

Unchanged

Pos 9

Doubled → 16 → 1 + 6

Check

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 2 → 4 4 → 8 5 → 10 → 1 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 4 + 1 + 8 + 1 + 1 + 0 + 8 + 1 + 6 + 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 1821415886.