Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Dr. Kenechukwu Olufemi Chudy-Onwugaje, MD

Individual provider Gastroenterology Physician · NPI 1861749780

Dr. Kenechukwu Olufemi Chudy-Onwugaje, MD practises Gastroenterology in Belleville, Illinois. Qualified in 2009, 17 years ago. Practices with Hshs Medical Group Inc, a 209-clinician group, works from 5 locations and accepts Medicare assignment. Licensed in Illinois, Maryland and Pennsylvania.

Years since qualifying
17
Licensed in
IL, MD, PA
In the registry since
2012
Specialties on file
5
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

4500 Memorial Dr
Belleville, IL 62226-5360
Phone: (618) 257-6220
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 404 Lincoln Dr, Herrin, IL 62948-3789 — (618) 993-0056
  • 3 Saint Elizabeth Blvd Ste 5000, O Fallon, IL 62269-1282 — (618) 641-5803
  • 22 S Greene St, Baltimore, MD 21201-1544 — (410) 328-8318
  • 145 W 23rd St Ste 101, Erie, PA 16502-2858 — (814) 452-2767

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 036156635 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence D0080835 (MD)
Gastroenterology Physician Taxonomy 207RG0100X · Licence MD469735 (PA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036156635 (IL)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1861749780
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 9, 2012
Last updated in NPPESJanuary 29, 2026
Certification dateJanuary 29, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Medical schoolOTHER
Graduated 2009 (17 years in practice)
Group practice Hshs Medical Group Inc — 209 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Upper gastrointestinal (GI) endoscopy for acid reflux 175 times · 88th percentile
Colonoscopy 99 times · 79th percentile

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients374
Services billed 817 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Hshs Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 209 clinicians in the practice; 12 are shown here.

Other providers in Belleville