DR. KENECHUKWU OLUFEMI CHUDY-ONWUGAJE M.D.
NPI 1861749780
Internal Medicine - Gastroenterology in Belleville, IL

NPI Status: Active since August 09, 2012

Contact Information

4500 MEMORIAL DR
BELLEVILLE, IL
ZIP 62226
Phone: (618) 257-6220

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  • Individual
  • Male
  • Years of Experience 17
  • Internal Medicine
  • Gastroenterology
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About KENECHUKWU CHUDY-ONWUGAJE

This page provides the complete NPI Profile along with additional information for Kenechukwu Chudy-onwugaje, an internist established in Belleville, Illinois with a medical specialization in Internal Medicine, focusing in gastroenterology and more than 17 years of experience. The healthcare provider is registered in the NPI registry with number 1861749780 assigned on August 2012. The practitioner's primary taxonomy code is 207RG0100X with license number 036156635 (IL). The provider is registered as an individual and his NPI record was last updated January 2026.

NPI
1861749780
Provider Name
DR. KENECHUKWU OLUFEMI CHUDY-ONWUGAJE M.D.
Gender
Male
Entity Type
Individual
Location Address
4500 MEMORIAL DR BELLEVILLE, IL 62226
Location Phone
(618) 257-6220
Mailing Address
4500 MEMORIAL DR BELLEVILLE, IL 62226
Mailing Phone
(618) 257-6220
Medical School Name
OTHER
Graduation Year
2009
Is Sole Proprietor?
No
Enumeration Date
08-09-2012
Last Update Date
01-29-2026
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An internist like Kenechukwu Chudy-onwugaje 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

Secondary Locations

  • 22 S Greene St N3W 156
    Baltimore, MD 21201
    (410) 328-8318
  • 3 Saint Elizabeth Blvd Ste 5000
    O Fallon, IL 62269
    (618) 641-5803
  • 404 Lincoln Dr
    Herrin, IL 62948
    (618) 993-0056
  • 145 W 23rd St Ste 101
    Erie, PA 16502
    (814) 452-2767

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.
036156635
License State
IL
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.

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)
1207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

D0080835 (MD)
2207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

036156635 (IL)
3207RG0100XAllopathic & Osteopathic Physicians

Internal Medicine
Gastroenterology

MD469735 (PA)
4390200000XStudent, Health Care

Student in an Organized Health Care Education/Training Program

 

Medicare Participation & PECOS Enrollment Status

Kenechukwu Chudy-onwugaje is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Kenechukwu Chudy-onwugaje is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 1355632233

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20210713000932

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

This service was performed 48 times for 47 patients

Biopsy of large bowel using a flexible endoscope

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

This service was performed 15 times for 15 patients

Colonoscopy

A colonoscopy is a medical procedure that allows your doctor to examine your colon (the large intestine). It utilizes a thin, flexible tube with a tiny camera on the end, which is inserted through the rectum. This procedure can help identify issues such as polyps, inflammation, or early signs of cancer. It's usually recommended for people over 50 or those with specific risk factors.

This service was performed for 106 patients

Control of bleeding of esophagus, stomach, and/or upper small bowel using a flexible endoscope

This procedure involves using a flexible tube with a light, called an endoscope, to examine and treat bleeding in the esophagus, stomach, or upper small bowel. It's a safe, effective way to control bleeding and ensure your digestive health.

This service was performed 13 times for 12 patients

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope

This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.

This service was performed 35 times for 35 patients

Follow-up hospital inpatient care per day, typically 15 minutes

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

This service was performed 147 times for 106 patients

Follow-up hospital inpatient care per day, typically 25 minutes

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

This service was performed 22 times for 19 patients

Initial hospital inpatient care per day, typically 30 minutes

Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.

This service was performed 17 times for 17 patients

Initial hospital inpatient care per day, typically 50 minutes

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

This service was performed 205 times for 194 patients

Upper gastrointestinal (GI) endoscopy for acid reflux

An upper GI endoscopy is a procedure to examine your esophagus and stomach using a thin, flexible tube called an endoscope. It helps diagnose conditions like acid reflux by identifying any inflammation or damage. It's generally safe, performed under sedation, and takes about 15-30 minutes.

This service was performed for 259 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $32.78 for a new patient copayment and $24.92 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 62226 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $131.14
  • Minimum New Patient Price $56.28
  • Maximum New Patient Price $173.35
  • Average New Patient Copayment $32.78
  • Minimum New Patient Copayment $14.07
  • Maximum New Patient Copayment $43.33

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $99.71
  • Minimum Established Patient Price $17.51
  • Maximum Established Patient Price $139.99
  • Average Established Patient Copayment $24.92
  • Minimum Established Patient Copayment $4.37
  • Maximum Established Patient Copayment $34.99

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Find Provider Hospital Affiliations - Privileges

Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.

Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Kenechukwu Chudy-onwugaje is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
HERRIN HOSPITAL201 S 14TH ST
HERRIN, IL 62948
(618) 942-2171Acute Care Hospitals
MEMORIAL HOSPITAL OF CARBONDALE405 W JACKSON
CARBONDALE, IL 62901
(618) 549-0721Acute Care Hospitals
MEMORIAL HOSPITAL4500 MEMORIAL DRIVE
BELLEVILLE, IL 62226
(618) 233-7750Acute Care Hospitals

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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 1861749780, 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 70. The final step is to find the difference between that total and the next multiple of ten (70 - 70 = 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
1
Doubled → 2
Pos 2
8
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
1
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
4
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
7
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
0
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 6 → 12 → 3 7 → 14 → 5 9 → 18 → 9 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 2 + 1 + 1 + 4 + 4 + 1 + 8 + 7 + 1 + 6 + 24 = 70

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

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

70 - 70 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1861749780.

Other Providers at the Same Location


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

Internal Medicine
4500 MEMORIAL DR
BELLEVILLE, IL 62226
Radiology (Diagnostic Radiology)
4500 MEMORIAL DR, DEPT RADIOLOGY
BELLEVILLE, IL 62226
Nurse Anesthetist, Certified Registered
4500 MEMORIAL DR
BELLEVILLE, IL 62226
Radiology (Diagnostic Radiology)
4500 MEMORIAL DR, DEPT OF RADIOLOGY
BELLEVILLE, IL 62226
Nurse Anesthetist, Certified Registered
4500 MEMORIAL DR
BELLEVILLE, IL 62226
Physical Therapist
4500 MEMORIAL DR
BELLEVILLE, IL 62226
Physical Therapist
4500 MEMORIAL DR
BELLEVILLE, IL 62226
Physical Therapist
4500 MEMORIAL DR
BELLEVILLE, IL 62226
Physical Therapist
4500 MEMORIAL DR
BELLEVILLE, IL 62226
Physical Therapist
4500 MEMORIAL DR, MEMORIAL HOSPITAL
BELLEVILLE, IL 62226
Physical Therapist
4500 MEMORIAL DR
BELLEVILLE, IL 62226
Physical Therapist
4500 MEMORIAL DR
BELLEVILLE, IL 62226
Physical Therapist
4500 MEMORIAL DR
BELLEVILLE, IL 62226
Occupational Therapist
4500 MEMORIAL DR
BELLEVILLE, IL 62226
Physical Therapist
4500 MEMORIAL DR, MEDICAL BUILDING 1 SUITE 470
BELLEVILLE, IL 62226
Specialist
4500 MEMORIAL DR
BELLEVILLE, IL 62226
Nurse Anesthetist, Certified Registered
4500 MEMORIAL DR
BELLEVILLE, IL 62226
Physical Therapist
4500 MEMORIAL DR
BELLEVILLE, IL 62226
Nurse Anesthetist, Certified Registered
4500 MEMORIAL DR
BELLEVILLE, IL 62226
Internal Medicine
4500 MEMORIAL DR
BELLEVILLE, IL 62226

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1861749780, enumerated as an "individual" on August 09, 2012.

The provider is located at 4500 MEMORIAL DR BELLEVILLE, IL 62226 and the phone number is (618) 257-6220.

Internal Medicine with taxonomy code 207RG0100X and a focus in Gastroenterology.

Kenechukwu Chudy-onwugaje is affiliated with: HERRIN HOSPITAL, MEMORIAL HOSPITAL OF CARBONDALE and MEMORIAL HOSPITAL.