HEATHER LUDY
NPI 1013895218
Clinical Nurse Specialist in Hartford, WI

NPI Status: Active since August 25, 2025

Contact Information

1032 E SUMNER ST
HARTFORD, WI
ZIP 53027
Phone: (262) 670-7616

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

Individual
Female
Clinical Nurse Specialist

About HEATHER LUDY

This page provides the complete NPI Profile along with additional information for Heather Ludy, a provider established in Hartford, Wisconsin with a medical specialization in Clinical Nurse Specialist. The healthcare provider is registered in the NPI registry with number 1013895218 assigned on August 2025. The practitioner's primary taxonomy code is 364S00000X with license number 177626 (WI). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI: 1013895218
Provider Name: HEATHER LUDY
Gender: Female
Entity Type: Individual
Location Address: 1032 E SUMNER ST HARTFORD, WI 53027
Location Phone: (262) 670-7616
Mailing Address: N163W20080 ASH DR JACKSON, WI 53037
Mailing Phone: (608) 604-4722
Is Sole Proprietor?: No
Enumeration Date: 08-25-2025
Last Update Date: 08-25-2025
Code Navigator

A Clinical Nurse Specialist (CNS) like Heather Ludy is a type of advanced practice registered nurse (APRN) that provides direct patient care in various nursing specialties, including pediatrics or psychiatric-mental health. CNSs collaborate with other nurses and medical professionals to improve patient care quality. CNSs are often positioned in leadership roles where they may provide education and mentorship to other nursing personnel. Additionally, CNSs may also conduct research and advocate for certain healthcare policies.

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: Clinical Nurse Specialist
Taxonomy Code: 364S00000X
Type: Physician Assistants & Advanced Practice Nursing Providers
License No.: 177626
License State: WI
Taxonomy Description: A registered nurse who, through a graduate degree program in nursing, or through a formal post-basic education program or continuing education courses and clinical experience, is expert in a specialty area of nursing practice within one or more of the components of direct patient/client care, consultation, education, research and administration.

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 1013895218, we treat the final digit (8) 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 52. The final step is to find the difference between that total and the next multiple of ten (60 - 52 = 8).

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 → 2

Pos 4

Unchanged

Pos 5

Doubled → 16 → 1 + 6

Pos 6

Unchanged

Pos 7

Doubled → 10 → 1 + 0

Pos 8

Unchanged

Pos 9

Doubled → 2

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 1 → 2 8 → 16 → 7 5 → 10 → 1 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 2 + 3 + 1 + 6 + 9 + 1 + 0 + 2 + 2 + 24 = 52

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

The next multiple of ten after 52 is 60. The difference is the calculated check digit.

60 - 52 = 8

This NPI is valid

The calculated check digit is 8, which matches the last digit of 1013895218.