JANET A NICOLLERAT RN
NPI 1134263544
Internal Medicine - Endocrinology, Diabetes & Metabolism in Durham, NC

NPI Status: Active since February 18, 2007

Contact Information

2100 ERWIN RD
DUMC 3405
DURHAM, NC
ZIP 27710
Phone: (919) 684-8111

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NPPES record last updated: August 24, 2007. Verified against the NPPES registry weekly; last sync: July 12, 2026.

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

About JANET NICOLLERAT

This page provides the complete NPI Profile along with additional information for Janet Nicollerat, an internist established in Durham, North Carolina with a medical specialization in Internal Medicine, focusing in endocrinology, diabetes & metabolism . The healthcare provider is registered in the NPI registry with number 1134263544 assigned on February 2007. The practitioner's primary taxonomy code is 207RE0101X with license number 112989 (NC). The provider is registered as an individual and her NPI record was last updated 19 years ago.

NPI
1134263544
Provider Name
JANET A NICOLLERAT RN
Gender
Female
Entity Type
Individual
Location Address
2100 ERWIN RD DUMC 3405 DURHAM, NC 27710
Location Phone
(919) 684-8111
Mailing Address
4101 N ROXBORO ST DURHAM, NC 27704
Mailing Phone
(919) 684-8111
Is Sole Proprietor?
No
Enumeration Date
02-18-2007
Last Update Date
08-24-2007
Code Navigator

An internist like Janet Nicollerat 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.
112989
License State
NC
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.

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)
1163W00000XNursing Service Providers

Registered Nurse

112989 (NC)

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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 1134263544, 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
1
Doubled → 2
Pos 2
1
Unchanged
Pos 3
3
Doubled → 6
Pos 4
4
Unchanged
Pos 5
2
Doubled → 4
Pos 6
6
Unchanged
Pos 7
3
Doubled → 6
Pos 8
5
Unchanged
Pos 9
4
Doubled → 8
Check
4
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 2 → 4 3 → 6 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 6 + 4 + 4 + 6 + 6 + 5 + 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 1134263544.

Other Providers at the Same Location


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

Radiology (Radiation Oncology)
2100 ERWIN RD
DURHAM, NC 27710
Internal Medicine (Cardiovascular Disease)
2100 ERWIN RD
DURHAM, NC 27710
Colon & Rectal Surgery
2100 ERWIN RD
DURHAM, NC 27710
Thoracic Surgery (Cardiothoracic Vascular Surgery)
2100 ERWIN RD
DURHAM, NC 27710
Transplant Surgery
2100 ERWIN RD
DURHAM, NC 27710
Ophthalmology
2100 ERWIN RD
DURHAM, NC 27710
Dermatology
2100 ERWIN RD
DURHAM, NC 27710
Surgery (Surgical Oncology)
2100 ERWIN RD
DURHAM, NC 27710
Physician Assistant
2100 ERWIN RD
DURHAM, NC 27710
Internal Medicine (Infectious Disease)
2100 ERWIN RD
DURHAM, NC 27710
Pediatrics
2100 ERWIN RD
DURHAM, NC 27710
Pediatrics (Pediatric Hematology-Oncology)
2100 ERWIN RD
DURHAM, NC 27710
Internal Medicine
2100 ERWIN RD
DURHAM, NC 27710
Internal Medicine (Cardiovascular Disease)
2100 ERWIN RD
DURHAM, NC 27710
Optometrist
2100 ERWIN RD
DURHAM, NC 27710
Neurological Surgery
2100 ERWIN RD
DURHAM, NC 27710
Nurse Practitioner
2100 ERWIN RD
DURHAM, NC 27710
Emergency Medicine
2100 ERWIN RD
DURHAM, NC 27710
Nurse Practitioner
2100 ERWIN RD
DURHAM, NC 27710
Physician Assistant
2100 ERWIN RD
DURHAM, NC 27710

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1134263544, enumerated as an "individual" on February 18, 2007.

The provider is located at 2100 ERWIN RD DUMC 3405 DURHAM, NC 27710 and the phone number is (919) 684-8111.

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