COURTNEY STARK DO
NPI 1134869704
Pediatrics - Pediatric Gastroenterology in Philadelphia, PA

NPI Status: Active since March 31, 2022

Contact Information

2401 CIVIC CENTER BLVD
DIVISION OF PEDIATRIC GASTROENTEROLOGY
PHILADELPHIA, PA
ZIP 19103
Phone: (267) 425-2739

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  • Individual
  • Female
  • Pediatrics
  • Pediatric Gastroenterology

About COURTNEY STARK

This page provides the complete NPI Profile along with additional information for Courtney Stark, a pediatrician established in Philadelphia, Pennsylvania with a medical specialization in Pediatrics, focusing in pediatric gastroenterology . The healthcare provider is registered in the NPI registry with number 1134869704 assigned on March 2022. The practitioner's primary taxonomy code is 2080P0206X with license number OT024047 (PA). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1134869704
Provider Name
COURTNEY STARK DO
Gender
Female
Entity Type
Individual
Location Address
2401 CIVIC CENTER BLVD DIVISION OF PEDIATRIC GASTROENTEROLOGY PHILADELPHIA, PA 19103
Location Phone
(267) 425-2739
Mailing Address
3401 CIVIC CENTER BLVD DIVISION OF PEDIATRIC GASTROENTEROLOGY PHILADELPHIA, PA 19104
Mailing Phone
(267) 425-2739
Is Sole Proprietor?
No
Enumeration Date
03-31-2022
Last Update Date
07-10-2025
Code Navigator

A pediatrician like Courtney Stark is a physician who has completed a pediatric residency and is board-certified or board-eligible in a pediatric specialty. Pediatric care providers are trained to care for newborns, infants, children and adolescents. A pediatrician could perform physical exams, manage vaccinations, monitor development milestones, diagnose illnesses, infections, injuries or other health problems, etc.

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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

Pediatrics Pediatric Gastroenterology

Taxonomy Code
2080P0206X
Type
Allopathic & Osteopathic Physicians
License No.
OT024047
License State
PA
Taxonomy Description
A pediatrician who specializes in the diagnosis and treatment of diseases of the digestive systems of infants, children and adolescents. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using lighted scopes to see internal organs.

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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 1134869704, 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
8
Doubled → 16 → 1 + 6
Pos 6
6
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
7
Unchanged
Pos 9
0
Doubled → 0
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 8 → 16 → 7 9 → 18 → 9 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 6 + 4 + 1 + 6 + 6 + 1 + 8 + 7 + 0 + 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 1134869704.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1134869704, enumerated as an "individual" on March 31, 2022.

The provider is located at 2401 CIVIC CENTER BLVD DIVISION OF PEDIATRIC GASTROENTEROLOGY PHILADELPHIA, PA 19103 and the phone number is (267) 425-2739.

Pediatrics with taxonomy code 2080P0206X and a focus in Pediatric Gastroenterology.