Okechukwu Nwabueze Obi, MD
NPI 1083134704ActiveIndividual· Internal Medicine, Medical Oncology· Las Vegas, NV
Internal Medicine, Medical Oncology (MD) with Southern Illinois Medical Services Nfp and 1 other group, practicing in Las Vegas, Nevada. Their prescriptions cost Medicare Part D more than their services did: $1,184,105 for 325 claims, against $111,376 paid for services in 2024. Sobi, Inc reported $124.97 in payments in 2025, mostly food and beverage. Lists Harrisburg Medical Center and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1083134704 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 23, 2017 |
| Last updated in NPPES | Feb 4, 2026 |
| Certified by provider | Feb 4, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | 24703 | NV |
| Internal Medicine | 207R00000X | 24703 | NV |
| Internal Medicine, Hematology | 207RH0000X | 24703 | NV |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 036152827 | 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 - Hematology/Oncology (IL); Practitioner - Internal Medicine (NV) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 82 |
|---|---|
| Services billed | 5,057 across 52 procedure codes |
| Paid by Medicare | $111,376 |
Part D prescriptions in 2024
| Prescriptions (claims) | 325 · 579 30-day fills |
|---|---|
| Patients | 136 |
| Total drug cost | $1,184,105 |
| Generic share | 69% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical groups
- Southern Illinois Medical Services NfpCarterville, IL · 334 clinicians
- Optum Medical Group Rhodes P CLas Vegas, NV · 51 clinicians
Hospital affiliations
- Harrisburg Medical CenterHarrisburg, IL
- Herrin HospitalHerrin, IL
- Memorial Hospital of CarbondaleCarbondale, IL
- St Joseph Memorial HospitalMurphysboro, IL
Industry payments (Open Payments)
- 2025$124.97 · 1 payment from 1 company
- 2024$126.77 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sobi, Inc | $124.97 | 1 |
What the 2025 payments were for
- Food and Beverage$124.97 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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