NPIMap

Individual provider Active NPI

Ogbonnaya E Aneziokoro, MD

  • Nephrology Physician
  • Chicago, IL
National Provider Identifier
1104831668
Registry record updated Mar 7, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nephrology PhysicianTaxonomy code 207RN0300X
License
036102972 Issued in IL
Practice address
2222 W Division St Ste 210
Chicago, IL 60622-3094
Phone
(773) 227-2004
Fax
(773) 227-2006
NPI assigned
Jul 30, 2006
Last updated
Mar 7, 2026By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Mar 7, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Nephrology Physician 207RN0300X 036102972 IL Primary

Addresses

Primary practice location

2222 W Division St Ste 210
Chicago, IL 60622-3094

Mailing address

2222 W Division St Ste 210
Chicago, IL 60622-3094
Phone (773) 227-2004

Other identifiers 1

IdentifierTypeStateIssuer
036102972MedicaidIL

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20060911000457 IL Practitioner - NephrologyPractitioner - Internal Medicine 3375547094 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
NephrologyAlso: Internal Medicine
Education
Other, 1995
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Rush University Medical GroupGroup PAC ID 5496658874, 1,521 clinicians
Northwest Medical Associates of Chicago LLCGroup PAC ID 3274537998, 3 clinicians

Practice addresses (Care Compare)

1725 W Harrison St
Suite 762
Chicago, IL 60612-3852
Phone (312) 942-8120

2222 W Division St
Suite 210
Chicago, IL 60622-3094
Phone (773) 227-2004

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
036102972ILMDNephrology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Rush University Medical Group CurrentSince Feb 25, 2026 Accepting new patients
Northwest Medical Associates of Chicago LLC CurrentSince Sep 11, 2006 Accepting new patients

Locations

1725 W Harrison St
Ste 762
Chicago, IL 60612
Phone (312) 563-1230

2222 W Division St
Ste 210
Chicago, IL 60622
Phone (773) 227-2004

2875 W 19th St
Chicago, IL 60623
Phone (773) 484-4300

1S376 Summit Ave
Ste 4C
Oakbrook Terrace, IL 60181
Phone (630) 424-1122

Interoperability endpoints

  • FHIR API: https://api.platform.athenahealth.com/11534/brand/1/csg/1/fhir/r4
  • Direct secure messaging: ogbonnaya.aneziokoro.1@11534.direct.athenahealth.com

Organizations & group practices 2

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 18

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

View all 18

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1154217600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772841600000",
    "number": "1104831668",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2222 W DIVISION ST STE 210",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606223094",
            "telephone_number": "773-227-2004",
            "fax_number": "773-227-2006"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2222 W DIVISION ST STE 210",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606223094",
            "telephone_number": "773-227-2004",
            "fax_number": "773-227-2006"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ANEZIOKORO",
        "first_name": "OGBONNAYA",
        "middle_name": "E",
        "name_prefix": "Mr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-07-30",
        "last_updated": "2026-03-07",
        "certification_date": "2026-03-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "IL",
            "license": "036102972",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "036102972",
            "state": "IL"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Chicago, IL

Sources for this page

Verify at the official NPI Registry.