Emmanuel Nnanna Njoku, MD
NPI 1689981045ActiveIndividual· Internal Medicine· Libertyville, IL
Internal Medicine (MD) with City of Hope Medical Group of Illinois PLLC and 1 other group, practicing in Libertyville, Illinois. Their prescriptions cost Medicare Part D more than their services did: $399,723 for 184 claims, against $220,299 paid for services in 2024. Gilead Sciences, Inc. was the largest of 3 companies reporting payments in 2024, $167.54 in all, mostly food and beverage. Lists Advocate Condell Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1689981045 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 8, 2010 |
| Last updated in NPPES | May 19, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036.126619 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Infectious Disease (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 671 |
|---|---|
| Services billed | 2,047 across 9 procedure codes |
| Paid by Medicare | $220,299 |
Part D prescriptions in 2024
| Prescriptions (claims) | 184 · 195 30-day fills |
|---|---|
| Patients | 28 |
| Total drug cost | $399,723 |
| Generic share | 41% of claims |
Education and affiliations
| Graduation year | 2002 |
|---|---|
| Medicare specialty | Infectious Disease |
Medical groups
- City of Hope Medical Group of Illinois PLLCZion, IL · 129 clinicians
- Infectious Disease Consultants of Northern Illinois SCLibertyville, IL · 4 clinicians
Hospital affiliations
- Advocate Condell Medical CenterLibertyville, IL
- Advocate Illinois Masonic Medical CenterChicago, IL
Industry payments (Open Payments)
- 2024$167.54 · 5 payments from 3 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Gilead Sciences, Inc. | $122.04 | 3 |
| Aimmune Therapeutics, Inc. | $22.88 | 1 |
| Shionogi Inc | $22.62 | 1 |
What the 2024 payments were for
- Food and Beverage$167.54 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 43 internal medicine physicians in Libertyville · All internal medicine physicians in Illinois