HOLLY ANN ESTILL
NPI 1417130923
Perfusionist in Milwaukee, WI

NPI Status: Active since December 07, 2007

Contact Information

8701 WATERTOWN PLANK RD
HUB 5TH FLOOR
MILWAUKEE, WI
ZIP 53226
Phone: (414) 955-6904
Fax: (414) 955-0079

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  • Individual
  • Female
  • Perfusionist

About HOLLY ESTILL

This page provides the complete NPI Profile along with additional information for Holly Estill, a provider established in Milwaukee, Wisconsin with a medical specialization in Perfusionist. The healthcare provider is registered in the NPI registry with number 1417130923 assigned on December 2007. The practitioner's primary taxonomy code is 242T00000X with license number 93-018 (WI). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1417130923
Provider Name
HOLLY ANN ESTILL
Gender
Female
Entity Type
Individual
Location Address
8701 WATERTOWN PLANK RD HUB 5TH FLOOR MILWAUKEE, WI 53226
Location Phone
(414) 955-6904
Location Fax
(414) 955-0079
Mailing Address
8701 WATERTOWN PLANK RD MILWAUKEE, WI 53226
Mailing Phone
(414) 955-6904
Mailing Fax
(414) 955-0079
Is Sole Proprietor?
No
Enumeration Date
12-07-2007
Last Update Date
10-13-2025
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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

Perfusionist

Taxonomy Code
242T00000X
Type
Technologists, Technicians & Other Technical Service Providers
License No.
93-018
License State
WI
Taxonomy Description
A perfusionist operates extracorporeal circulation and autotransfusion equipment during any medical situation where it is necessary to support or temporarily replace the patient's circulatory or respiratory function. The perfusionist is knowledgeable concerning the variety of equipment available to perform extracorporeal circulation functions and is responsible, in consultation with the physician, for selecting the appropriate equipment and techniques to be used.

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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 1417130923, we treat the final digit (3) 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 3).

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
4
Unchanged
Pos 3
1
Doubled → 2
Pos 4
7
Unchanged
Pos 5
1
Doubled → 2
Pos 6
3
Unchanged
Pos 7
0
Doubled → 0
Pos 8
9
Unchanged
Pos 9
2
Doubled → 4
Check
3
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 1 → 2 0 → 0 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 2 + 7 + 2 + 3 + 0 + 9 + 4 + 24 = 57

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

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1417130923.

Other Providers at the Same Location


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

Pathology (Clinical Pathology/Laboratory Medicine)
8701 WATERTOWN PLANK RD, ATTN. CHAD LIPTOW, MS
MILWAUKEE, WI 53226
Student in an Organized Health Care Education/Training Program
8701 WATERTOWN PLANK RD, DEPARTMENT OF SURGERY, DIVISION OF EDUCATION
MILWAUKEE, WI 53226
Student in an Organized Health Care Education/Training Program
8701 WATERTOWN PLANK RD, DEPARTMENT OF MEDICINE HUB FOR COLLABORATIVE MED 8TH FL
MILWAUKEE, WI 53226
Pharmacist
8701 WATERTOWN PLANK RD
MILWAUKEE, WI 53226
Psychiatry & Neurology (Psychiatry)
8701 WATERTOWN PLANK RD
MILWAUKEE, WI 53226
Specialist/Technologist (Athletic Trainer)
8701 WATERTOWN PLANK RD
MILWAUKEE, WI 53226
Student in an Organized Health Care Education/Training Program
8701 WATERTOWN PLANK RD
MILWAUKEE, WI 53226
Pharmacist
8701 WATERTOWN PLANK RD
MILWAUKEE, WI 53226
Student in an Organized Health Care Education/Training Program
8701 WATERTOWN PLANK RD
MILWAUKEE, WI 53226
Student in an Organized Health Care Education/Training Program
8701 WATERTOWN PLANK RD
MILWAUKEE, WI 53226
Student in an Organized Health Care Education/Training Program
8701 WATERTOWN PLANK RD
MILWAUKEE, WI 53226
Student in an Organized Health Care Education/Training Program
8701 WATERTOWN PLANK RD
MILWAUKEE, WI 53226
Student in an Organized Health Care Education/Training Program
8701 WATERTOWN PLANK RD
MILWAUKEE, WI 53226
Student in an Organized Health Care Education/Training Program
8701 WATERTOWN PLANK RD
MILWAUKEE, WI 53226
Student in an Organized Health Care Education/Training Program
8701 WATERTOWN PLANK RD
MILWAUKEE, WI 53226
Student in an Organized Health Care Education/Training Program
8701 WATERTOWN PLANK RD
MILWAUKEE, WI 53226
Student in an Organized Health Care Education/Training Program
8701 WATERTOWN PLANK RD
MILWAUKEE, WI 53226
Student in an Organized Health Care Education/Training Program
8701 WATERTOWN PLANK RD
WAUWATOSA, WI 53226
Student in an Organized Health Care Education/Training Program
8701 WATERTOWN PLANK RD
MILWAUKEE, WI 53226
Student in an Organized Health Care Education/Training Program
8701 WATERTOWN PLANK RD
MILWAUKEE, WI 53226

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1417130923, enumerated as an "individual" on December 07, 2007.

The provider is located at 8701 WATERTOWN PLANK RD HUB 5TH FLOOR MILWAUKEE, WI 53226 and the phone number is (414) 955-6904.

Perfusionist with taxonomy code 242T00000X.