KATHERINE FEDUN
NPI 1740132794
Nurse Practitioner - Primary Care in Allentown, PA

NPI Status: Active since February 12, 2026

Contact Information

1250 S CEDAR CREST BLVD STE 405
ALLENTOWN, PA
ZIP 18103
Phone: (888) 402-5846

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

Individual
Female
Nurse Practitioner
Primary Care

About KATHERINE FEDUN

This page provides the complete NPI Profile along with additional information for Katherine Fedun, a provider established in Allentown, Pennsylvania with a medical specialization in Nurse Practitioner, focusing in primary care . The healthcare provider is registered in the NPI registry with number 1740132794 assigned on February 2026. The practitioner's primary taxonomy code is 363LP2300X with license number SP035404 (PA). The provider is registered as an individual and her NPI record was last updated March 2026.

NPI: 1740132794
Provider Name: KATHERINE FEDUN
Gender: Female
Entity Type: Individual
Location Address: 1250 S CEDAR CREST BLVD STE 405 ALLENTOWN, PA 18103
Location Phone: (888) 402-5846
Mailing Address: 2100 MACK BLVD FL 4 ALLENTOWN, PA 18103
Mailing Phone: (484) 884-4500
Mailing Fax
Is Sole Proprietor?: No
Enumeration Date: 02-12-2026
Last Update Date: 03-23-2026
Code Navigator

A nurse practitioner (NP) like Katherine Fedun is an experienced registered nurse with a master’s or doctoral degree and advanced clinical training. Nurse practitioners can work in many different specialties including primary care, pediatrics, cardiology, emergency, women’s health, oncology or geriatrics. Nurse practitioners provide services like physical exams, order laboratory tests, manage diseases, write prescriptions, etc.

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: Nurse Practitioner Primary Care
Taxonomy Code: 363LP2300X
Type: Physician Assistants & Advanced Practice Nursing Providers
License No.: SP035404
License State: PA

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	363LF0000X	Physician Assistants & Advanced Practice Nursing Providers	Nurse Practitioner Family	RN763393 (PA)

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 1740132794, 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 8

Pos 4

Unchanged

Pos 5

Doubled → 2

Pos 6

Unchanged

Pos 7

Doubled → 4

Pos 8

Unchanged

Pos 9

Doubled → 18 → 1 + 8

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 4 → 8 1 → 2 2 → 4 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 8 + 0 + 2 + 3 + 4 + 7 + 1 + 8 + 24 = 66

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

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4

This NPI is valid

The calculated check digit is 4, which matches the last digit of 1740132794.