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

Q: What is Kenechukwu Chudy-onwugaje's NPI number?

The NPI number for Kenechukwu Chudy-onwugaje is 1861749780. It was assigned to this individual provider in the NPPES registry on August 9, 2012.

Q: What is Kenechukwu Chudy-onwugaje's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Active since August 09, 2012PECOS EnrolledAccepts Medicare Assignment

4500 MEMORIAL DR, BELLEVILLE, IL 62226(618) 257-6220 Get Directions Write a Review

NPPES record last updated: January 29, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 29, 2026, Feb 6, 2024, Jul 14, 2022 and 4 more (7 updates tracked since 2016).

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About Dr. Kenechukwu Olufemi Chudy-onwugaje M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. KENECHUKWU OLUFEMI CHUDY-ONWUGAJE M.D. (NPI 1861749780) is an individual gastroenterology provider in Belleville, Illinois, licensed in Illinois (036156635) and active in the NPI registry since August 2012. He is enrolled in Medicare PECOS, is affiliated with Herrin Hospital, and maintains 4 additional practice locations.

NPPES Registry Identity

NPI1861749780

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. KENECHUKWU OLUFEMI CHUDY-ONWUGAJECredential: M.D.

Location Address4500 MEMORIAL DRBelleville, IL 62226-5360

Mailing Address4500 Memorial DrBelleville, IL 62226-5360 · (618) 257-6220

Phone(618) 257-6220

Sole ProprietorNo

Medical School CMSOtherGraduated 2009

Enumeration DateAugust 9, 2012

Last NPPES UpdateJanuary 29, 20267 updates tracked since enumeration

NPPES CertifiedJanuary 29, 2026

✔ NPI 1861749780 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

Licenses✔ Licensed in IL · 036156635✔ Licensed in PA · MD469735

Definition

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.

Also ListedInternal MedicineTaxonomy 207R00000X · License D0080835 (MD), 036156635 (IL)

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

4500 MEMORIAL DR, Belleville, IL 62226

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Secondary Practice Locations 4

Location 1145 W 23rd St Ste 101Erie, PA 16502-2858 · Phone (814) 452-2767 · Fax (814) 459-2976

Location 2404 Lincoln DrHerrin, IL 62948-3789 · Phone (618) 993-0056 · Fax (618) 993-0752

Location 322 S Greene St, N3W 156Baltimore, MD 21201-1544 · Phone (410) 328-8318

Location 43 Saint Elizabeth Blvd Ste 5000O Fallon, IL 62269-1282 · Phone (618) 641-5803 · Fax (618) 607-5116

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Kenechukwu Olufemi Chudy-onwugaje M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1355632233

PECOS Enrollment IDI20210713000932

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Kenechukwu Chudy-onwugaje reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Fairview Heights Medical Group, Sc

25 mi

Internal Medicine

670 MASON RIDGE CENTER DR, STE 300
Saint Louis, MO 63141

Reassigned Medicare billing, Illinois enrollment
507 clinicians in this Medicare group

NPI 1811392210 (314) 996-7644

Southern Illinois Medical Services, Nfp

72 mi

Internal Medicine

1239 E MAIN ST
Carbondale, IL 62901

Reassigned Medicare billing, Illinois enrollment
702 clinicians in this Medicare group

NPI 1770656837 (618) 457-5200

Sjl Health Systems Inc

76 mi

Skilled Nursing Facility

900 S CHESTNUT ST
Pana, IL 62557

Reassigned Medicare billing, Illinois enrollment
Medicare enrollment name: Hshs Medical Group Inc
317 clinicians in this Medicare group

NPI 1215037353 (217) 562-3996

St Vincent Medical Education And Research Institute Inc

579 mi

Internal Medicine

2314 SASSAFRAS ST, 2ND FLOOR - ADMIN OFFICE
Erie, PA 16502

Reassigned Medicare billing, Pennsylvania enrollment
483 clinicians in this Medicare group

NPI 1902881477 (814) 452-5043

Northwest Hospital Center, Inc.

715 mi

Acute Care

5401 OLD COURT RD
Randallstown, MD 21133

Reassigned Medicare billing, Maryland enrollment
194 clinicians in this Medicare group

NPI 1235669599 (410) 701-4434

University Of Penn - Medical Group

800 mi

Gastroenterology

3400 SPRUCE ST, 3 DULLES BUILDING
Philadelphia, PA 19104

Reassigned Medicare billing, Pennsylvania enrollment
141 clinicians in this Medicare group

NPI 1477660173 (215) 349-8222

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 12

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

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.

192 services182 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

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.

153 services111 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

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.

98 services97 patients

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43235

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.

74 services71 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

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.

42 services31 patients

Biopsy of large bowel using a flexible endoscope 45380

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.

36 services36 patients

Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221

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.

32 services29 patients

Diagnostic exam of large bowel using a flexible endoscope 45378

This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.

25 services25 patients

Review by radiologist of image from tube placement into bile duct using an endoscope 74328

This procedure involves a specialist, called a radiologist, examining an image taken during a tube placement into your bile duct. The tube is inserted with the help of a tool called an endoscope. This allows the doctor to check for any issues or abnormalities in your bile duct.

14 services14 patients

Removal of stone or debris from bile or pancreatic duct using a flexible endoscope 43264

This procedure, called an endoscopic retrograde cholangiopancreatography (ERCP), involves using a flexible tube with a camera (endoscope) to locate and remove stones or debris from your bile or pancreatic duct. It's a non-surgical method to clear the ducts, enhancing your digestive health.

13 services11 patients

Insertion of stent into pancreatic or bile duct using a flexible endoscope 43274

This procedure involves the placement of a tiny tube, known as a stent, into your pancreatic or bile duct. A flexible endoscope, a long, thin instrument with a light and camera, is used. It aids in relieving blockages and improving flow in these ducts.

12 services11 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

12 services12 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Herrin Hospital

Acute Care Hospitals · Herrin, IL

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140011

Location201 S 14th StHerrin, IL 62948 · Williamson County

Emergency services

St Josephs Hospital

Acute Care Hospitals · Breese, IL

OwnershipVoluntary non-profit - Church

CMS Certification Number140145

Location9515 Holy Cross LnBreese, IL 62230 · Clinton County

Emergency services Birthing friendly

Memorial Hospital Of Carbondale

Acute Care Hospitals · Carbondale, IL

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140164

Location405 W JacksonCarbondale, IL 62901 · Jackson County

Emergency services Birthing friendly

Memorial Hospital

Acute Care Hospitals · Belleville, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140185

Location4500 Memorial DriveBelleville, IL 62226 · St. Clair County

Emergency services Birthing friendly

Hshs St Elizabeth's Hospital

Acute Care Hospitals · O Fallon, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number140187

LocationOne St Elizabeth BoulevardO Fallon, IL 62269 · St. Clair County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62226 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$131.14 typical visit price

range $56.28 – $173.35

Typical copayment $32.78 (range $14.07 – $43.33)

Most-billed visit code 99204

Established Patient

$99.71 typical visit price

range $17.51 – $139.99

Typical copayment $24.92 (range $4.37 – $34.99)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CEP AMERICA - ILLINOIS SNF, LLP

Internal Medicine (Infectious Disease)

4500 MEMORIAL DR
BELLEVILLE, IL 62226

St. Clair County (618) 233-7750

MS. LAUREN NICOLE MARSHALL FNP

Nurse Practitioner

4500 MEMORIAL DR
BELLEVILLE, IL 62226

St. Clair County (618) 257-5455

MR. LITO T RUFIN NP

Nurse Practitioner

4500 MEMORIAL DR
BELLEVILLE, IL 62226

St. Clair County (618) 257-6220

KIM C WRIGLEY P.A.

Physician Assistant

4500 MEMORIAL DR
BELLEVILLE, IL 62226

St. Clair County (618) 257-6220

BRIAN BENDEL

Nurse Anesthetist, Certified Registered

4500 MEMORIAL DR
BELLEVILLE, IL 62226

St. Clair County (561) 623-2008

DR. PAUL D SANDER MD

Pain Medicine (Pain Medicine)

4500 MEMORIAL DR, ANESTHESIA DEPT
BELLEVILLE, IL 62226

St. Clair County (618) 257-4076

DR. NEIL MCCLYMONT D.O.

Emergency Medicine

4500 MEMORIAL DR, MEMORIAL HOSPITAL - ER
BELLEVILLE, IL 62226

St. Clair County (618) 233-7750

DR. VIBHU DHAWAN MD

Internal Medicine

4500 MEMORIAL DR
BELLEVILLE, IL 62226

St. Clair County (618) 257-6220

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Kenechukwu Chudy-onwugaje's NPI number?

The NPI number for Kenechukwu Chudy-onwugaje is 1861749780. It was assigned to this individual provider in the NPPES registry on August 9, 2012.

Where is Kenechukwu Chudy-onwugaje located?

Kenechukwu Chudy-onwugaje practices at 4500 Memorial Dr, Belleville, IL 62226. The listed phone number is (618) 257-6220.

What is Kenechukwu Chudy-onwugaje's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Kenechukwu Chudy-onwugaje enrolled in Medicare?

Yes. Kenechukwu Chudy-onwugaje is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Kenechukwu Chudy-onwugaje's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kenechukwu Chudy-onwugaje reassigns Medicare benefits to 6 organizations: Fairview Heights Medical Group, Sc (Saint Louis, MO), Southern Illinois Medical Services, Nfp (Carbondale, IL), Sjl Health Systems Inc (Pana, IL), St Vincent Medical Education And Research Institute Inc (Erie, PA), Northwest Hospital Center, Inc. (Randallstown, MD) and 1 more organization, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Kenechukwu Chudy-onwugaje's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Kenechukwu Chudy-onwugaje accept?

Health plans from Anthem Blue Cross and Blue Shield list Kenechukwu Chudy-onwugaje as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Kenechukwu Chudy-onwugaje affiliated with any hospitals?

According to CMS data, Kenechukwu Chudy-onwugaje is affiliated with Herrin Hospital, St Josephs Hospital, Memorial Hospital Of Carbondale, Memorial Hospital and Hshs St Elizabeth's Hospital.

When was this NPI record last updated?

The NPPES record for Kenechukwu Chudy-onwugaje was last updated on January 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.