ROBERT WARREN MD
NPI 1831289404
Pediatrics - Pediatric Pulmonology in Little Rock, AR

NPI Status: Active since October 13, 2006

Contact Information

800 MARSHALL ST # 653
LITTLE ROCK, AR
ZIP 72202
Phone: (501) 364-1100

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

Individual
Male
Pediatrics
Pediatric Pulmonology

About ROBERT WARREN

This page provides the complete NPI Profile along with additional information for Robert Warren, a pediatrician established in Little Rock, Arkansas with a medical specialization in Pediatrics, focusing in pediatric pulmonology . The healthcare provider is registered in the NPI registry with number 1831289404 assigned on October 2006. The practitioner's primary taxonomy code is 2080P0214X with license number C-4150 (AR). The provider is registered as an individual and his NPI record was last updated April 2026.

NPI: 1831289404
Provider Name: ROBERT WARREN MD
Gender: Male
Entity Type: Individual
Location Address: 800 MARSHALL ST # 653 LITTLE ROCK, AR 72202
Location Phone: (501) 364-1100
Mailing Address: 800 MARSHALL ST # 653 LITTLE ROCK, AR 72202
Mailing Phone: (501) 364-1100
Is Sole Proprietor?: No
Enumeration Date: 10-13-2006
Last Update Date: 04-26-2026
Code Navigator

A pediatrician like Robert Warren 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.

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: Pediatrics Pediatric Pulmonology
Taxonomy Code: 2080P0214X
Type: Allopathic & Osteopathic Physicians
License No.: C-4150
License State: AR
Taxonomy Description: A pediatrician dedicated to the prevention and treatment of all respiratory diseases affecting infants, children and young adults. This specialist is knowledgeable about the growth and development of the lung, assessment of respiratory function in infants and children, and experienced in a variety of invasive and noninvasive diagnostic techniques.

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 1831289404, 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 → 6

Pos 4

Unchanged

Pos 5

Doubled → 4

Pos 6

Unchanged

Pos 7

Doubled → 18 → 1 + 8

Pos 8

Unchanged

Pos 9

Doubled → 0

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 3 → 6 2 → 4 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 + 8 + 6 + 1 + 4 + 8 + 1 + 8 + 4 + 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 1831289404.