DR. DOUGLAS CORT DRENCKPOHL DCN, RD
NPI 1194526210
Dietitian, Registered - Nutrition, Pediatric in Peoria, IL

NPI Status: Active since March 24, 2025

Contact Information

530 NE GLEN OAK AVE
PEORIA, IL
ZIP 61637
Phone: (309) 624-0621
Fax: (309) 624-4291

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

Individual
Male
Dietitian, Registered
Nutrition, Pediatric

About DOUGLAS DRENCKPOHL

This page provides the complete NPI Profile along with additional information for Douglas Drenckpohl, a provider established in Peoria, Illinois with a medical specialization in Dietitian, Registered, focusing in nutrition, pediatric . The healthcare provider is registered in the NPI registry with number 1194526210 assigned on March 2025. The practitioner's primary taxonomy code is 133VN1004X with license number 164002914 (IL). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI: 1194526210
Provider Name: DR. DOUGLAS CORT DRENCKPOHL DCN, RD
Gender: Male
Entity Type: Individual
Location Address: 530 NE GLEN OAK AVE PEORIA, IL 61637
Location Phone: (309) 624-0621
Location Fax: (309) 624-4291
Mailing Address: 1112 N. UNDERHILL PEORIA, IL 61606
Mailing Phone: (309) 253-7826
Is Sole Proprietor?: No
Enumeration Date: 03-24-2025
Last Update Date: 03-24-2025
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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: Dietitian, Registered Nutrition, Pediatric
Taxonomy Code: 133VN1004X
Type: Dietary & Nutritional Service Providers
License No.: 164002914
License State: IL
Taxonomy Description: An individual who is a Board Certified Specialist in Pediatric Nutrition and applies evidence-based nutrition knowledge in providing medical nutrition therapy for pediatric patients. Specialists work directly with healthy and/or ill children (newborn up to 21 years of age) as well as children with special health care needs in a variety of settings (hospitals, community-based and/or family-centered programs, education programs, home, etc.), OR indirectly through management, care coordination, education, quality improvement, or research practice linked specifically to pediatric nutrition.

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 1194526210, we treat the final digit (0) 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 50. The final step is to find the difference between that total and the next multiple of ten (50 - 50 = 0).

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 → 18 → 1 + 8

Pos 4

Unchanged

Pos 5

Doubled → 10 → 1 + 0

Pos 6

Unchanged

Pos 7

Doubled → 12 → 1 + 2

Pos 8

Unchanged

Pos 9

Doubled → 2

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 9 → 18 → 9 5 → 10 → 1 6 → 12 → 3 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 1 + 8 + 4 + 1 + 0 + 2 + 1 + 2 + 2 + 2 + 24 = 50

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

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

50 - 50 = 0

This NPI is valid

The calculated check digit is 0, which matches the last digit of 1194526210.