Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Chijoke H Onyenwenyi, MD

Individual provider Internal Medicine Physician · NPI 1285941153

Dr. Chijoke H Onyenwenyi, MD is a Nephrology in Evergreen Park, Illinois. Qualified in 2002, 24 years ago. Practices with Advocate Health and Hospitals Corporation, a 3,079-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
24
Licensed in
IL
In the registry since
2010
Specialties on file
2
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

9125 S Pulaski Rd
Evergreen Park, IL 60805-1441
Phone: (708) 422-7715
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 4400 W 95th St Ste 112, Oak Lawn, IL 60453-2657 — (708) 684-7100
  • 16605 107th St, Orland Park, IL 60467-9016 — (708) 226-9860

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence 036-129962 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036129962 (IL)

Record details

NPI number1285941153
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 13, 2010
Last updated in NPPESSeptember 20, 2023
Certification dateSeptember 20, 2023

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2002 (24 years in practice)
Group practice Advocate Health And Hospitals Corporation — 3079 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations8 on file with Medicare

Other providers in Evergreen Park