CHISOM MARCELLUS NWANEKI MD, MPH
NPI 1770288318
Internal Medicine - Gastroenterology in Kansas City, KS

NPI Status: Active since April 03, 2023

Contact Information

3901 RAINBOW BLVD # MS 1023
KANSAS CITY, KS
ZIP 66160
Phone: (913) 588-4146

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

Individual
Male
Internal Medicine
Gastroenterology

About CHISOM NWANEKI

This page provides the complete NPI Profile along with additional information for Chisom Nwaneki, an internist established in Kansas City, Kansas with a medical specialization in Internal Medicine, focusing in gastroenterology . The healthcare provider is registered in the NPI registry with number 1770288318 assigned on April 2023. The practitioner's primary taxonomy code is 207RG0100X with license number 94-12571 (KS). The provider is registered as an individual and his NPI record was last updated April 2026.

NPI: 1770288318
Provider Name: CHISOM MARCELLUS NWANEKI MD, MPH
Gender: Male
Entity Type: Individual
Location Address: 3901 RAINBOW BLVD # MS 1023 KANSAS CITY, KS 66160
Location Phone: (913) 588-4146
Mailing Address: 3901 RAINBOW BLVD # MS 1023 KANSAS CITY, KS 66160
Mailing Phone: (913) 588-4146
Is Sole Proprietor?: No
Enumeration Date: 04-03-2023
Last Update Date: 04-13-2026
Code Navigator

An internist like Chisom Nwaneki 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 Gastroenterology
Taxonomy Code: 207RG0100X
Type: Allopathic & Osteopathic Physicians
License No.: 94-12571
License State: KS
Taxonomy Description: An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

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 1770288318, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).

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 → 14 → 1 + 4

Pos 4

Unchanged

Pos 5

Doubled → 4

Pos 6

Unchanged

Pos 7

Doubled → 16 → 1 + 6

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 7 → 14 → 5 2 → 4 8 → 16 → 7 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 4 + 0 + 4 + 8 + 1 + 6 + 3 + 2 + 24 = 62

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

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8

This NPI is valid

The calculated check digit is 8, which matches the last digit of 1770288318.