Zainab Raji Osobu, MD
NPI 1720432081ActiveIndividual· Emergency Medicine· Naperville, IL
Emergency Medicine (MD) in Naperville, Illinois, trained at Loyola University of Chicago, Stritch School of Medicine (class of 2016). 492 Medicare patients in 2024, $63,966 paid; nearly all of their 230 Part D prescriptions were generic (90%).
Overview
| NPI | 1720432081 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Apr 22, 2016 |
| Last updated in NPPES | Nov 19, 2025 |
| Certified by provider | Nov 19, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | 036.150018 | 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 - Emergency Medicine (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 492 |
|---|---|
| Services billed | 755 across 24 procedure codes |
| Paid by Medicare | $63,966 |
Part D prescriptions in 2024
| Prescriptions (claims) | 230 · 230 30-day fills |
|---|---|
| Patients | 160 |
| Total drug cost | $3,706 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | Loyola University of Chicago, Stritch School of Medicine |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Emergency Medicine |
Medical group
- Edward HospitalBolingbrook, IL · 96 clinicians
Hospital affiliation
- Edward HospitalNaperville, IL
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 60 emergency medicine physicians in Naperville · All emergency medicine physicians in Illinois