Dr Chijoke H Onyenwenyi, MD - Medicare Nephrology in Evergreen Park, IL

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Dr Chijoke H Onyenwenyi, MD is a medicare enrolled "Internal Medicine - Nephrology" physician in Evergreen Park, Illinois. He graduated from medical school in 2002 and has 22 years of diverse experience with area of expertise as Nephrology. He is a member of the group practice Southwest Nephrology Associates, S.c., Advocate Health And Hospitals Corporation and his current practice location is 9125 S Pulaski Rd, Evergreen Park, Illinois. You can reach out to his office (for appointments etc.) via phone at (708) 422-7715.

Dr Chijoke H Onyenwenyi is licensed to practice in Illinois (license number 036-129962) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1285941153.

Contact Information

Dr Chijoke H Onyenwenyi, MD
9125 S Pulaski Rd,
Evergreen Park, IL 60805-1441
(708) 422-7715
Not Available

Map and Direction




Physician's Profile

Full NameDr Chijoke H Onyenwenyi
GenderMale
SpecialityNephrology
Experience22 Years
Location9125 S Pulaski Rd, Evergreen Park, Illinois
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Chijoke H Onyenwenyi graduated from medical school in 2002
  NPI Data:
  • NPI Number: 1285941153
  • Provider Enumeration Date: 09/13/2010
  • Last Update Date: 09/20/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 8527203504
  • Enrollment ID: I20130321000483

Medical Identifiers

Medical identifiers for Dr Chijoke H Onyenwenyi such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1285941153NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 036129962 (Illinois)Secondary
207RN0300XInternal Medicine - Nephrology 036-129962 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Fmc - CrestwoodCrestwood, ILDialysis facility
Fmc - Oak ForestOak forest, ILDialysis facility
Beverly DialysisChicago, ILDialysis facility
Advocate Christ Hospital & Medical CenterOak lawn, ILHospital
Osf Little Company Of Mary Medical CenterEvergreen park, ILHospital
Palos Community HospitalPalos heights, ILHospital
Central Dupage HospitalWinfield, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Southwest Nephrology Associates, S.c.155733546013
Advocate Health And Hospitals Corporation78108009352484

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Chijoke H Onyenwenyi allows following entities to bill medicare on his behalf.
Entity NameAdvocate Health And Hospitals Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700824455
PECOS PAC ID: 7810800935
Enrollment ID: O20031106000064
Entity NameNephrology Associates Of Northern Illinois Ltd
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1124069182
PECOS PAC ID: 2163328675
Enrollment ID: O20031208000313
Entity NameSouthwest Nephrology Associates, S.c.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1104925163
PECOS PAC ID: 1557335460
Enrollment ID: O20040825000464

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Chijoke H Onyenwenyi is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Chijoke H Onyenwenyi, MD
120 W 22nd St Ste 200,
Oak Brook, IL 60523-1563

Ph: (630) 573-5000		Dr Chijoke H Onyenwenyi, MD
9125 S Pulaski Rd,
Evergreen Park, IL 60805-1441

Ph: (708) 422-7715

Reviews and Comments


Internal Medicine Doctors in Evergreen Park, IL

Dr. Thomas Bump, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 3545 W 95th St, Evergreen Park, IL 60805
Phone: 708-346-5562    Fax: 708-346-2059
Dolores Dixon-grevious, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 2850 W 95th St, Suite 301, Evergreen Park, IL 60805
Phone: 708-389-2200    Fax: 708-389-6686
Vinitha Raghavan, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 3358 W 95th St, Evergreen Park, IL 60805
Phone: 708-952-3040    Fax: 708-952-3043
Wassim Ballany, M.D.
Nephrology
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Practice Location: 3545 W 95th St, Evergreen Park, IL 60805
Phone: 708-346-5562    
Dr. George Sousanieh, MD
Nephrology
Medicare: Accepting Medicare Assignments
Practice Location: 9125 S Pulaski Rd, Evergreen Park, IL 60805
Phone: 708-422-7715    
Dr. John H Burke, M.D.
Nephrology
Medicare: Accepting Medicare Assignments
Practice Location: 3545 W 95th St, Evergreen Park, IL 60805
Phone: 708-346-5562    Fax: 708-346-2059
Dr. Richard D. Kern, M.D.
Nephrology
Medicare: Not Enrolled in Medicare
Practice Location: 2800 W 95th St, Pulmonary Medicine Consultants, Ltd., Evergreen Park, IL 60805
Phone: 708-424-9288    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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