Ejikeme O. Obasi, MD
NPI 1205869815ActiveIndividual· Internal Medicine, Nephrology· Evergreen Park, IL
Internal Medicine, Nephrology (MD) with Nephrology Associates of Northern Illinois Ltd and 1 other group, practicing in Evergreen Park, Illinois. 506 Medicare patients in 2024, $198,299 paid; nearly all of their 1,061 Part D prescriptions were generic (92%). Fresenius USA Marketing, Inc. reported $52.10 in payments in 2025, mostly food and beverage. Lists Advocate Christ Hospital & Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1205869815 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 8, 2006 |
| Last updated in NPPES | Jul 5, 2023 |
| Certified by provider | Jul 5, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 036081193 | IL |
| Internal Medicine | 207R00000X | 036081193 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nephrology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 506 |
|---|---|
| Services billed | 1,983 across 24 procedure codes |
| Paid by Medicare | $198,299 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,061 · 2,130 30-day fills |
|---|---|
| Patients | 194 |
| Total drug cost | $134,206 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 1980 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical groups
- Nephrology Associates of Northern Illinois LtdAlgonquin, IL · 117 clinicians
- Southwest Nephrology Associates, S.C.Orland Park, IL · 13 clinicians
Hospital affiliations
- Advocate Christ Hospital & Medical CenterOak Lawn, IL
- Osf Little Company of Mary Medical CenterEvergreen Park, IL
- Palos Community HospitalPalos Heights, IL
Other facilities
- Concerto DialysisDialysis facility · Lincolnwood, IL
- Davita Mt Greenwood DialysisDialysis facility · Chicago, IL
- Fkc - Evergreen ParkDialysis facility · Evergreen Park, IL
- Fmc - Merrionette ParkDialysis facility · Merrionette Park, IL
Industry payments (Open Payments)
- 2025$52.10 · 2 payments from 1 company
- 2024$16.89 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Fresenius USA Marketing, Inc. | $52.10 | 2 |
What the 2025 payments were for
- Food and Beverage$52.10 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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