NANCY RUDNICK
NPI 1235003005
Internal Medicine - Endocrinology, Diabetes & Metabolism in Harrisburg, PA

NPI Status: Active since October 03, 2025

Contact Information

111 S FRONT ST
HARRISBURG, PA
ZIP 17101
Phone: (717) 782-3131

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  • Individual
  • Female
  • Internal Medicine
  • Endocrinology, Diabetes & Metabolism

About NANCY RUDNICK

This page provides the complete NPI Profile along with additional information for Nancy Rudnick, an internist established in Harrisburg, Pennsylvania with a medical specialization in Internal Medicine, focusing in endocrinology, diabetes & metabolism . The healthcare provider is registered in the NPI registry with number 1235003005 assigned on October 2025. The practitioner's primary taxonomy code is 207RE0101X with license number RN736210 (PA). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1235003005
Provider Name
NANCY RUDNICK
Gender
Female
Entity Type
Individual
Location Address
111 S FRONT ST HARRISBURG, PA 17101
Location Phone
(717) 782-3131
Mailing Address
1620 WARREN ST NEW CUMBERLAND, PA 17070
Is Sole Proprietor?
No
Enumeration Date
10-03-2025
Last Update Date
10-03-2025
Code Navigator

An internist like Nancy Rudnick is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, 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

Internal Medicine Endocrinology, Diabetes & Metabolism

Taxonomy Code
207RE0101X
Type
Allopathic & Osteopathic Physicians
License No.
RN736210
License State
PA
Taxonomy Description
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.

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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 1235003005, we treat the final digit (5) 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 45. The final step is to find the difference between that total and the next multiple of ten (50 - 45 = 5).

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

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 6 + 5 + 0 + 0 + 6 + 0 + 0 + 24 = 45

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

The next multiple of ten after 45 is 50. The difference is the calculated check digit.

50 - 45 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1235003005.

Other Providers at the Same Location


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

Emergency Medicine
111 S FRONT ST
HARRISBURG, PA 17101
Internal Medicine (Critical Care Medicine)
111 S FRONT ST
HARRISBURG, PA 17101
Pediatrics (Neonatal-Perinatal Medicine)
111 S FRONT ST
HARRISBURG, PA 17101
Pediatrics (Neonatal-Perinatal Medicine)
111 S FRONT ST, NICU, 8TH FLOOR
HARRISBURG, PA 17101
Nurse Practitioner (Neonatal)
111 S FRONT ST
HARRISBURG, PA 17101
Preventive Medicine (Medical Toxicology)
111 S FRONT ST
HARRISBURG, PA 17101
Emergency Medicine
111 S FRONT ST
HARRISBURG, PA 17101
Physical Therapist
111 S FRONT ST
HARRISBURG, PA 17101
Pediatrics (Neonatal-Perinatal Medicine)
111 S FRONT ST
HARRISBURG, PA 17101
Physical Therapist
111 S FRONT ST
HARRISBURG, PA 17101
Emergency Medicine
111 S FRONT ST
HARRISBURG, PA 17101
Emergency Medicine
111 S FRONT ST
HARRISBURG, PA 17101
Nurse Practitioner (Family)
111 S FRONT ST
HARRISBURG, PA 17101
Emergency Medicine
111 S FRONT ST
HARRISBURG, PA 17101
Nurse Anesthetist, Certified Registered
111 S FRONT ST
HARRISBURG, PA 17101
General Acute Care Hospital
111 S FRONT ST
HARRISBURG, PA 17101
Speech-Language Pathologist
111 S FRONT ST
HARRISBURG, PA 17101
Occupational Therapist
111 S FRONT ST
HARRISBURG, PA 17101
Internal Medicine
111 S FRONT ST, INTERNAL MEDICINE RESIDENCY PROGRAM, BRADY HALL 3
HARRISBURG, PA 17101
Internal Medicine
111 S FRONT ST
HARRISBURG, PA 17101

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1235003005, enumerated as an "individual" on October 03, 2025.

The provider is located at 111 S FRONT ST HARRISBURG, PA 17101 and the phone number is (717) 782-3131.

Internal Medicine with taxonomy code 207RE0101X and a focus in Endocrinology, Diabetes & Metabolism.